Simple · Scientific · Advanced
A fast, accurate calculator that works entirely in your browser — no app to download, no sign-up, no ads. Use it for everyday arithmetic, homework, shopping, cooking, or any calculation you'd normally reach your phone for.
Add, subtract, multiply and divide with full support for brackets and order of operations. Calculate percentages instantly — useful for discounts, tax, tips and splits. Square roots and powers included.
Switch to scientific mode for advanced maths. Includes sin, cos, tan and their inverses, log (base 10) and ln (natural log), π, e, factorials and more. Powered by math.js for precise floating-point results.
Every calculation is saved in the history panel so you can scroll back, review your working and reuse previous results. Tap any history entry to reload it. Perfect for multi-step problems where you need to keep track of intermediate values.
On desktop, type numbers and operators directly from your keyboard. Press Enter to calculate, Escape to clear, and Backspace to delete the last character. Faster than clicking every time.