Best Free Scientific Calculator

Scientific Calculator

Scientific Calculator

The Ultimate Guide to Scientific Calculators: Features, Functions, and Buying Tips

Scientific calculators are a must-have tool for students, professionals, and scientists alike. From simple arithmetic to complex algebraic equations, these powerful devices offer a wide range of functions that can make complex calculations a breeze. In this guide, we'll take a closer look at the features and functions of scientific calculators, as well as some tips on how to choose the right one for your needs.

Table of Contents

What is a Scientific Calculator?

A scientific calculator is a specialized calculator designed to perform complex mathematical and scientific calculations. It typically includes functions for algebraic, trigonometric, logarithmic, and exponential calculations, as well as the ability to work with complex numbers, matrices, and statistical functions. Scientific calculators are used in a wide range of fields, including engineering, physics, chemistry, and finance.

Why Use a Scientific Calculator?

Scientific calculators offer many benefits over standard calculators, including the ability to perform more complex calculations and functions. They can also save time and increase accuracy when working with large numbers or complicated equations. In addition, scientific calculators often include features such as built-in memory, programmability, and graphical displays, making them a versatile tool for a wide range of applications.

Basic Functions of a Scientific Calculators

Arithmetic Operations

Scientific calculators can perform basic arithmetic operations, including addition, subtraction, multiplication, and division. They can also handle decimal and fractional values, as well as negative numbers.

Trigonometric Functions

Trigonometric functions such as sine, cosine, and tangent are essential in many scientific and mathematical applications. Scientific calculators can perform these functions in both degrees and radians.

Logarithmic Functions

Logarithmic functions are used to represent numbers on a logarithmic scale, which is useful in many scientific and engineering applications. Scientific calculators can perform logarithmic calculations for both base 10 and natural logarithms.

Exponential Functions

Exponential functions are used to represent exponential growth and decay, as well as to model complex systems in physics and engineering. Scientific calculators can perform exponential calculations with both positive and negative exponents.

Root Functions

Root functions, such as square roots and cube roots, are used in many mathematical and scientific applications. Scientific calculators can perform root calculations for a wide range of values, including complex numbers.

Advanced Functions of a Scientific Calculators

Complex Numbers

Scientific calculators can work with complex numbers, which are essential in many areas of mathematics and engineering. They can perform calculations such as addition, subtraction, multiplication, division, and conjugation for complex numbers.

Matrix Operations

Matrix operations are used in many scientific and engineering applications, including linear algebra, signal processing, and control systems. Scientific calculators can perform matrix calculations such as addition, subtraction, multiplication, inversion, and determinant.

Statistical Functions

Statistical functions such as mean, standard deviation, variance, and regression analysis are used in fields such as finance, engineering, and science. Scientific calculators can perform these functions and display results in a variety of formats.

Programming Capabilities

Some scientific calculators have programming capabilities, allowing users to write and save programs for frequently used calculations. This can save time and increase efficiency when working on complex projects.

Key Features to Consider When Buying a Scientific Calculators

When choosing a scientific calculator, there are several key features to consider:


The display is an important feature to consider, as it can affect readability and ease of use. Look for a calculator with a large, clear display that is easy to read in different lighting conditions.


The amount of memory on a calculator can impact its ability to store and recall calculations, as well as the number of programs it can run. Look for a calculator with sufficient memory for your needs.

Power Source

Scientific calculators can be powered by batteries, solar power, or both. Consider the availability and cost of replacement batteries, as well as the reliability of the solar power source.

Size and Portability

Consider the size and weight of the calculator, as well as its portability. A smaller, lightweight calculator may be easier to carry around, but a larger calculator may offer more features and functionality.


Scientific calculators can range in price from less than $10 to over $100. Consider your budget and the features you need when choosing a calculator.

Top Picks for the Best Scientific Calculators

Here are our top picks for the best scientific calculators on the market:

  • Texas Instruments TI-84 Plus CE
  • Casio fx-115ES PLUS
  • HP 35s Scientific Calculator
  • Sharp EL-W516TBSL Advanced Scientific Calculator
  • TI-Nspire CX II CAS


A scientific calculator is a powerful tool that can make complex mathematical and scientific calculations easier and more accurate. When choosing a calculator, consider the features and functions that are most important to you, as well as your budget and portability needs.


What is the difference between a scientific calculator and a graphing calculator?

A scientific calculator is designed to perform complex mathematical and scientific calculations, while a graphing calculator is designed to display and manipulate graphs and functions.

Can I use a scientific calculator on standardized tests?

Yes, most standardized tests allow the use of a scientific calculator, but it's important to check the specific requirements for each test.

Are there any online scientific calculators?

Yes, there are many free online scientific calculators available, but be sure to use a reputable source to ensure accuracy.

How do I reset my scientific calculator?

Most scientific calculators have a reset button or option in the settings menu. Consult the user manual for specific instructions.

Can I use a scientific calculator for financial calculations?

While scientific calculators are not specifically designed for financial calculations, they can be used for basic financial functions such as calculating interest and loan payments. However, it's important to ensure that the calculator has the necessary functions and accuracy for your specific financial needs.