Use this web-based scientific calculator for quick maths, percentages, powers, roots, and trigonometry directly in your browser.

Type with your keyboard or tap the buttons. Press Enter to calculate, and use AC to clear everything.

Quick facts

Works on: Desktop and mobile browser
Best for: For students practising calculations and people who need arithmetic or scientific functions while working on a computer. It is useful when a basic four-function calculator is not enough, but you do not need a spreadsheet.
Typical time: A few minutes
Difficulty: Beginner
Input or output: Follow the on-page instructions

About Scientific Calculator

Scientific Calculator is a browser-based calculator for everyday maths and more advanced calculations. It supports quick arithmetic as well as functions such as percentages, powers, roots, and trigonometry.

How to use Scientific Calculator

Enter your calculation using the buttons or keyboard, then press Enter or the equals button to calculate the result. Use AC to clear the calculator and start again.

Who it is for

For students practising calculations and people who need arithmetic or scientific functions while working on a computer. It is useful when a basic four-function calculator is not enough, but you do not need a spreadsheet.

What you can use Scientific Calculator for

Scientific Calculator can be useful for homework, study, quick office maths, percentages, estimates, technical calculations, and checking figures before adding them to a document or message.

Features

Arithmetic and percentage calculations.
Powers, roots and trigonometric functions.
Keyboard and on-screen button input.
Enter or equals to calculate, and AC to clear.

Tips for using Scientific Calculator

Use a small calculation with a known answer to check how a function behaves before using it in a longer expression. Check brackets, signs and the selected trigonometry settings where shown. Keep the units alongside your working so a correct calculation is not attached to the wrong measurement.

Important limitations

The calculator evaluates the expression you enter; it cannot determine whether that expression is appropriate for your task. Independently check results used for important financial or technical decisions.

Scientific Calculator