TOOLS · CALCULATOR
A calculator for any kind of math.
Basic arithmetic, percentages, and full scientific functions — trig, logs, square roots, powers. Type an expression, use the buttons, or your keyboard. Everything runs on your device.
History
Your past calculations will show up here. Click any entry to reuse its result.
What This Calculator Handles
Beyond basic arithmetic, this calculator understands standard operator precedence — multiplication and division happen before addition and subtraction, and parentheses override that order, exactly like you'd expect from a real expression rather than a simple button-by-button four-function calculator.
It also covers the scientific functions people actually reach for: trigonometry (sin, cos, tan), logarithms, square roots, and exponents (including the right-to-left associativity that makes 2^3^2 equal 2^9, not 8^2).
How This Tool Works
You can type a full expression directly, like (12 + 8) * 3 / 2, click the on-screen buttons, or use your keyboard — all three enter the same underlying expression parser. Everything runs locally in your browser; nothing you type is sent anywhere.
Frequently Asked Questions
Does it follow the standard order of operations?
Yes — multiplication and division are evaluated before addition and subtraction, and anything in parentheses is evaluated first, the same rules taught in school math.
Are trig functions in degrees or radians?
Degrees. Enter an angle like 90 for sin(90) and you'll get 1, not the radian-based result.
Can I chain exponents, like 2^3^2?
Yes, and it's evaluated right-to-left as mathematical convention expects — 2^3^2 means 2^(3^2), which is 2^9 = 512, not (2^3)^2 = 64.