# Best Scientific Calculators for Engineering – 2021 Reviews and Buyer’s Guide

Every Engineering Major needs a **reliable scientific calculator**.

Whether you are in **high school or college**, your calculator should be all about functionality.

Here we are talking about practical applications in your calculator and the fact that you can use the same calculator to sit your **EIT and PE exam**.

You will need the **best engineering calculator 2021** that will not be barred by the National Council of Examiners for Engineers and Surveying (NCEES).

In this article, we’ll be covering various calculators to cover every phase of an engineer. We hope you find it informative as we investigate the features that make these calculators **functional and practical**.

**HP 35s**

*Best choice for scientific and engineering*

- 2-Line LCD Display with Adjustable Contrast
- 30 KB of Memory
- 800+ Independent Storage Registers
- RPN or Algebraic Entry-System Logic
- Keystroke Programming
- HP Solve & 100 built-in Functions
- 42 built-in Physical Constants

In a hurry? Top Pick is your choice!

In a hurry? Top Pick is your choice!

## Engineering Scientific Calculators Comparison Chart

Device | |||||
---|---|---|---|---|---|

Photo | |||||

Display | 114- character 2-line Reverse Polish Notation | 16-character, 4-line display | 10-digit, 2-line natural textbook display | 2-line display | 12-digit 2-line display with Direct Algebraic Logic Function |

Menu | Color-coded keyboard-like keys | Hard plastic keys | Well-spaced plastic keys | Ergonomic plastic keys | Hard plastic keys |

Important Functions | Programming function, 26 memories, trigonometric, hyperbolic, statistics, complex numbers, vectors, etc | Complex number solving, matrices, vector, 3-solvers, scientific and engineering notation | Independent memories | Memory, multi-replay, scientific and engineering notations, trigonometry functions | Nine memories, multi-line playback, differential and integral calculus functions, etc |

Power Source | CR-32 Lithium-Ion Battery | Solar and battery power | Solar and battery power | Battery Power | Solar and battery backup |

Price |

## 5 Best Engineering Scientific Calculators (as of July, 2021):

### 1. HP 35s Engineering Scientific Calculator – Best Programmable Review

- 2-Line LCD Display with Adjustable Contrast
- 30 KB of Memory
- 800+ Independent Storage Registers
- RPN or Algebraic Entry-System Logic
- Keystroke Programming
- HP Solve & 100 built-in Functions
- 42 built-in Physical Constants

The HP 35s will not only come in handy for engineering coursework, but also for **Medicine courses**. This model has been around for a while since 2007, and it goes to show how reliable it remains.

It was built to succeed the 33s and was released as a celebration of the first ever **scientific calculator** made by HP the HP 35.

The HP 35s is much thinner than other models, and it follows suit with the **color scheme** that reminds us of HP calculators.

#### Multiple, All-rounded Functions

Like any advanced scientific calculator, this model assigns **multiple functions** to its keys.

It has **scientific functions** which include trigonometric and hyperbolic and their inverses, squaring and square roots, common and natural logarithms and their roots plus their inverses, conversion between radians and degrees, arbitrary powers and their roots, etc.

It has **built-in conversions** of common units like pounds to kilograms, Fahrenheit to Celsius degrees, inches to centimeters, Hours, Minutes, and Seconds (H.M.S), and decimal hour to degrees.

It can solve **statistic problems** with one or two variables, derivatives, and it also provides for factorials. It also offers functions for working with complex numbers and 3-element vectors.

#### Display

With this model, you can **adjust the contrast** so that you can read numbers using the right amount of light according to the outside conditions.

#### Programmable Function

If you don’t want to keep repeating the same operation when solving the same problem, HP 35s allows you to enter formulas using **simple keystrokes**. It goes further to provide advanced input through looping and branching for advanced math solving.

By being able to perform repetitive functions, perform alternative calculations, and make decisions this programmable calculator performs much **like a computer**.

We cannot fully exhaust the functions on the HP 35s, but it is clear it will bring Engineering performance to a whole **new level**.

#### Main Features:

- LCD large 2-line display with adjustable contrast
- 30 KB of memory plus 800+ independent storage registers
- RPN or algebraic entry-system logic, keystroke programming, HP Solve and 100 built-in functions
- Single and two-variable statistics, linear regression and more
- Fraction mode plus fraction-to-decimal conversion
- 42 built-in physical constants, plus a complete library of unit conversions, inverse functions, cube root, logarithms, exponents, factorials and more
- SAT Reasoning Test; SAT Subject Tests in Mathematics Level 1 and Level 2; ACT; PSAT/NMSQT; AP Chemistry/Physics; PLAN; EXPLORE
- Power: 2 x CR2032 batteries; battery life: 0.73 year @ 1 hr/day (approximately 9 months)

- It has 26 memories for storing intermediate values
- Three display modes; fixed number, engineering and scientific
- Includes an equation mode
- Provides conversions of different modes
- Pocket-sized and lightweight
- Color scheme allows choosing numbers fast and easy
- Programmable functionality

- It can be hard to learn using this model at first

Review HP 35s Scientific Calculator look at the video:

### 2. Texas Instruments TI-36X Pro Engineering Scientific Calculator – Best for High School and College Review

- 4-Line MultiView Display
- One- & Two-Variable Statistics
- MathPrint & Number Format Modes
- Select Degrees/Radians, Floating/Fix
- Polynomial & System of Linear Equations
- Vector & Matrix Entry Window

Are you taking engineering courses where graphing technology is not permitted? Well, the Texas Instruments TI-36X is ideal for students from high school through college and even in **professional work**.

It is a compact model that works much like the TI-84 before the introduction of the **2.53MP Operating system**. This tool proves reliability in lots of features as you will see shortly.

#### Solves Complex Math and Science Problems

**With MathPrint** entry and output, this model allows you to calculate and solve problems in natural math notation. This goes for such things as square roots, fractions, pi, etc. The calculator has one and two variable statistics which includes results in trend line analysis and linear regression.

#### Convenient Functions

With a calculator that supports advanced math functionality. It comes with a high-quality **MultiView display** on an easy-to-read LCD. You also have the chance to use a scrollable home screen which allows you to review and edit previous entries.

During exams, it will be a breeze to reset this calculator by using only two buttons. It is also dual-powered using **solar and battery** power.

#### Overall

Designed to be a **scientific engineering calculator**, this model serves as an essential tool for engineering courses and computer science for learning and exploring advanced scientific and math problems.

#### Main Features:

- 4-line MultiView™ display shows multiple calculations at the same time on screen
- One- and two-variable statistics
- MathPrint™ shows math expressions, symbols and stacked fractions as they appear in textbooks
- Select degrees/radians, floating/fix, number format modes
- Choose from three solvers: numeric equation, polynomial and system of linear equations
- Display a defined function in a tabular form
- Determine the numeric derivative and integral for real functions
- Perform vectors and matrices using a vector and matrix entry window
- Convert fractions, decimals and terms including Pi into alternate representations
- Ideal for high school through college: Algebra 1 & 2, Geometry, Trigonometry, Statistics, Calculus, Biology, etc

- 16-character, 4-line MultiView display
- MathPrint Textbook Display
- Offers different format modes including decimal, fraction, radian, and degree
- Can solve basic math like Algebra 1 and 2 to advanced Calculus and Statistics Math
- Dual power via solar and battery backup
- Easy to reset using two key presses

- Only for courses where graphing is not permitted

Review Texas Instruments TI-36X Pro Engineering/Scientific Calculator look at the video:

### 3. Casio FX-300ES Plus Engineering Scientific Calculator – Best for Students Review

- Natural Textbook Display
- 252 built-in Functions
- 9 Constant Memory Locations
- 2-Function Table of Values [f(x), g(x)]
- Random Integer Generator, GCD/LCM
- Review/Edit Previous Entries

**Mathematics and Physics** are the first two subjects that set you on a path to engineering.

At this stage, you don’t need an overly expensive calculator when you can have a cheap but **functional model** in high school.

The Casio FX-300ES Plus ensures you don’t get a dent in your pocket while being **powerful and versatile**.

This model packs 250 math functions and calculations. It is designed to support you in your coursework and is approved to sit **NCEES exams**.

#### Convenient High School Features

With **over 250 functions**, you get a calculator that has the features to support you throughout your schoolwork. First, you have the multi-replay function which allows you to backtrack through calculations and edit your entries.

It also has **nine constant memories** which mean you can store formulas and retrieve them later so that you can skip such steps. This makes your calculations much faster as you will already have the formula stored in the calculator.

Apart from the multi-replay and memory functions, this calculator will come in handy to help solve **trigonometric and exponentials**, functions, basic and advanced science problems, regression analysis, GCD, LCM, logarithms of any base, statistics, and linear regression, etc.

#### Thoughtful Display

It has a **multi-line display** which allows multi-replay functionality to be fast and easy. Learning becomes more interesting when you have a calculator you can depend on during class and in exams.

#### Reliable Power Sources

You don’t have to go looking for batteries when this model works right out of its box. It is two-way powered using **solar energy and battery** backup. It means you will never have to go back to the store because of a dead battery. It also means you’ll never lose work because the calculator will never die.

This model is all-rounded for **mid-school and high school** students. If engineering is in the future for you, this calculator is all you need to start prepping for the years ahead.

#### Main Features:

- Natural Textbook Display
- 252 built-in functions with easy menu
- Simplify Fractions and Roots, Repeating Decimal Display
- 2-Function Table of values [f(x), g(x)]
- Random Integer Generator, GCD/LCM
- Converts between Standard form and a Decimal approximation
- Logarithm of any base, Combinations and Permutations
- Statistics and Linear Regression, Integer Division with Remainder
- Review/Edit Previous Entries
- 9 Constant Memory locations

- It has lots of functions at a very affordable price
- Nine constant memories
- Can solve both basic and advanced science and math problems
- Two-way power offers reliability day and night
- It uses a natural textbook display

- It is only capable of handling subjects related to engineering at a fundamental level

Basic Features of the Casio fx-300ES Plus Calculator look at the video:

### 4. Helect H1002 – Best Compact Engineering/Scientific Calculator Review

- 2-Line Display
- 3 Angle Modes (Degrees, Radians & Grads)
- Scientific/Engineering Notation Modes
- Slide-off Protective Hard Case
- 2x L1154F Battery Included (2-year usage)

Helect H1002 is an **interesting choice** in the engineering category. It is one of those you will want to check out more so because of its performance in a minimalistic design.

With a **hard plastic case**, this model also proves reliability for many uses as it is tough and it will not fall apart if it keeps dropping from your desk.

#### Ergonomic Design

With **hard plastic keys** that are well-spaced, Helect H1002 offers you a quick method of entering calculations. You will be rid of the common problems of wrong entries owing to squeezed keys.

This calculator can give correct results of **trigonometric and statistics questions**. It is ideal for high school students preparing to undertake advanced engineering courses in college.

You will love that it can handle problems with **one or two variables**, so you did not go looking for a more sophisticated model if you are just laying a foundation for future coursework.

It has **three angle modes** including radian, degrees, and rad. Also, you can solve question using either engineering or scientific notations.

#### Dependable at all times

Helect H1002 is powered using a **long-lasting battery**. It should give you years of use before you ever require replacing the battery. Being that it is not solar powered, you will still have to watch for a drained battery so that you don’t lose any formulas saved using the memory function.

If you want a **minimalistic calculator**, Helect H1002 got you covered. It spans through a wide selection of functions which will be handy all through your coursework.

#### Main Features:

- 2-line display: show entry and calculated result at the same time
- Easily handles 1 and 2 variable statistical calculations, three angle modes (degrees, radians, and grads), and scientific/engineering notation modes
- Slide-off protective hard case
- Ideal for high school students, college students and professionals
- 2x L1154F battery included with 2-year usage

- Multi-replay and memory functions
- The 2-line display provides a better understanding of engineering problems
- Can handle statistics equations with 1 or 2 variables
- Comes with a slide off protective case
- Bright LCD for easy reading of results

- It does not have solar support for the power

### 5. Sharp EL-520XBWH – Best Engineering Calculator for Calculus Review

- 12-Digit, 2-Line Display
- Direct Algebraic Logic
- 419 Functions, 9 Memories
- Multi-Line Playback
- Metric Conversions
- Differential & Integral Calculus Functions

Sharp produces top of the line calculators, and the EL-520XBWH is no exception. This calculator is the best for **fast computations** for Calculus problems.

It also offers algebraic functionality and **over 400 other functions** to ease every day engineering coursework questions.

#### Perfect for Engineers

This model offers 419 functions to support engineering coursework. It has operations for **differential and integral** calculus. It also comes in handy for trigonometric and statistics problems.

It utilizes a 2-line display with **multi-line playback** making it easy to solve complicated questions. It is a handy instrument for also solving geometry and general math. Sharp EL-520XBWH has nine memories. They help you skip repetitive steps when solving the same problem over and over again.

#### Dual Power

The Sharp EL-520XBWH calculator enjoys both **battery and solar power**. You will be able to use it whether in the dark or during the day. You will also not risk losing saved formulas since it will never really experience a dead battery.

This model is well-rounded in that it is useful for basic and advanced problems. It is **ideal for high school** all the way to handling professional work. This is because it retains a high level of accuracy while remaining handheld and portable.

#### Main Features:

- Extra large 12-digit, 2-line display -- one line equation and one line numeric
- Direct Algebraic Logic allows to enter the elements of an expression in the exact order they appear in the textbook
- 419 functions, 9 memories
- Multi-Line Playback allows students to playback expressions and substitute new numeric values
- Metric Conversions
- Differential and integral calculus functions
- Hard case protects case for long-term durability
- Twin Power

- Accurate calculations using 419 functions
- 2-line 12-digit display
- It has multi-line playback
- Nine useful memory functions
- Suitable for regular high school and advanced engineering math
- It has a hard case to protect the calculator

- The keys are difficult to see in the dark

How determin the derivative of a function with a given value using a calculator Sharp EL-520XBWH look at the video:

## Scientific/Engineering Calculator -- Buyer’s Guide

Looking for an engineering calculator is no walk in the park. You will want to identify some of the **essential functions** that you can’t do without. Most engineering calculators are scientific because they cover a wide array of engineering courses compared to other types of calculators.

Here are a few **questions and pointers** to lead you as you pick a new calculator for engineering.

### Who should use it?

If you are taking engineering classes, you have probably come across math that is far more advanced than in high school. You will need a calculator designed for such **exact needs**.

First, if you want a calculator that helps you solve math step by step a **scientific calculator** is preferable. This is because it will allow you to show the steps you used before arriving at the answer during exams. You can only check if answers are correct with a graphing calculator which is not what teachers will be looking for in final exams.

### Advantages of an Scientific/Engineering Calculator

#### Necessary in Scientific/Engineering Coursework

Nowadays, every **Engineering Major** will have to own a scientific calculator. This is because of the complicated processes that you have to undertake while solving your courses. The last thing you’d like is to get involved in long pen and pencil arithmetic as well as having to do lots of rote memorization.

#### Quick and Easy to Use

Instead of using graphing calculators, scientific engineering calculators are much easier to learn to use **for various problems**. They do not pose the complexities of numerous functions which could be confusing if you are just starting your coursework in high school or college.

#### They solve real problems and Complex Math Questions

Among the features, you will find on an engineering calculator are logarithmic functions, trigonometric functions, fast access to constants pi and e, exponential functions, and even complex numbers. All these functions come in handy to solve problems in engineering thus providing you an easy way to explore and learn **engineering coursework**.

#### Detailed Knowledge

Every student who uses a scientific calculator for the engineering classes has better chances for **comprehensive understanding**. This is because these calculators provide a theory behind the results. You are equipped with extensive knowledge of real-life problems and the ways to solve them.

### Disadvantages of Scientific/Engineering Calculators

As much as engineering calculators have helped to speed up the learning process; many people still see it as a crutch for the **lazy student**. This can be true to a small degree because if you grow to rely on your calculator for advanced math, you may also tend to go to it for simple math.

### Which scientific/engineering calculator is allowed to GATE and NCEES exams?

NCEES (National Council of Examiners for Engineering and Surveying) and GATE (Graduate Aptitude Test in Engineering) examiners have to **protect** the integrity of their exams.

If you are sitting **NCEES exams**, you’ll be able to take Casio FX-115 and FX-991. You’ll also be able to use HP 35s and HP 33s. Texas Instruments models allowed are the TI-30X and TI-36X.

**GATE exams** are sat online hence GATE provides an online virtual scientific calculator that is available for all students sitting that exam. It gives all students an even playing ground.

### Scientific Calculator vs. Smartphone Apps

**Smartphones** have computational powers as much as calculators. In fact, pocket-size calculators have been replaced by smartphones. But are engineering calculators better than smartphone applications? If you are not looking to punch in numbers on a real keyboard and would rather go for a touchpad, then a smartphone calculator is your ideal choice.

But the truth is; **scientific calculators are complex**. Smartphone apps for engineering are never 100% at par with the real engineering calculators. This means you may never have the full functionality of an engineering calculator with a smartphone app.

### Is there a difference between scientific calculators for civil engineering, mechanical engineering, electrical engineering, biochemical and chemical engineering?

The first two years of an engineering student will have many standard units among all majors. This includes courses like Calculus I, II, and III, Physics I and II, and General Chemistry. This means you will be required to use a **scientific calculator** to solve problems in these courses.

Even so, after choosing your major, you will still need to use your scientific calculator **for advanced calculations**.

### Scientific Calculator vs. Regular Calculators

**Regular calculators** perform the basic functions of multiplication, addition, subtraction, division with a few additions for solving basic-level math.

But **scientific calculators** go beyond these specifications and help to solve trigonometry, exponents, logarithms, and complex numbers. They cannot, however, solve functions using graphs like graphing calculators.

### Scientific Calculator vs. Online CGPA Calculator for Engineering

The **Online CGPA calculator** for calculating CGPA only requires entering the grade points and credit hours, and it automatically gets the results just like you would when calculating GPA. On the other hand, a scientific calculator requires that you perform step by step calculations before arriving at your CGPA points.

## Conclusion

A scientific calculator makes all the difference for engineers. From making understanding easy to bringing accuracy in Math, these calculators are here to stay. In today’s list, we have narrowed down to the **five best calculators for engineering** hoping that you will find the information useful for picking your ideal engineering calculator.

Now you can get better at **your coursework** with these best engineering calculators.

Thanks, Antonio for sharing a valuable review.

As I CS student, I am searching for a high config. calculator. Finally, I got it here.

I have the HP 35s and I have programmed several for the PE exam. They can be found at RESINCVA.com

I have several programmed and I am working on getting all the programs and manuals completed. If you are interested in knowing more, you can email me from the site above and I will send you a manual to review, so you can see if they might help.