Scientific Calculator
Trigonometry, powers, roots, logarithms and factorials in your browser.
Calculator
How to use
- 1
Build your expression with the buttons or keyboard.
- 2
Switch between degrees and radians for trigonometry.
- 3
Press = for the answer.
Questions
Are angles in degrees or radians?
Use the DEG/RAD switch. Degrees are selected by default.
What does n! mean?
Factorial: n! = n × (n − 1) × … × 1. For example 5! = 120.
About this Scientific tool
Scientific Calculator — Trigonometry, powers, roots, logarithms and factorials in your browser. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Build your expression with the buttons or keyboard.
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Results are estimates to help you plan. They are not financial, tax or medical advice.