Scientific Calculator

It strictly follows standard order of operations, PEMDAS, parentheses first, then exponents, then multiplication and division, then addition and subtraction, which matters the moment an equation has more than one operator type in it, since getting that sequence wrong changes the answer entirely rather than just the formatting.

Switching between radians and degrees is one of the more common mistakes people make with trig functions specifically, since the sine of a given angle produces a completely different numeric result depending on which mode you're in. Physics and higher-level math typically default to radians, while basic geometry coursework usually sticks to degrees, so it's worth confirming which mode you're in before trusting a trig result.

Type your equation using the on-screen buttons or your keyboard, nesting parentheses as needed to control exactly which part calculates first. Hit equals and the result displays with full precision.

The constant e, Euler's number, roughly 2.718, shows up specifically in calculus, exponential growth and decay problems, and continuous compound interest formulas, and it's available as its own button rather than something you'd need to type out manually to several decimal places. Every calculation happens in your browser, and we never receive your formulas. Your history and saved variables sit in your browser's local storage on this device, and the clear buttons erase them.