What does the Scientific Calculator work out?

A full scientific calculator with trig, logs, powers, roots, factorials and memory. It is one of the Math tools on Mondo Knows.

Do I need to sign up, and is my data stored?

No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo Knows Tools

Scientific Calculator

A full scientific calculator with trig, logs, powers, roots, factorials and memory. A working scientific calculator rather than a form: every key you press builds an expression you can see, and the answer updates as you type. Use the free scientific calculator below for an instant answer, with the working shown so you can check it. Nothing you type leaves your browser.

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Type on the keypad or your keyboard. Enter works out the answer, Backspace deletes, Escape clears. Everything is calculated in your browser.

How it works

A working scientific calculator rather than a form: every key you press builds an expression you can see, and the answer updates as you type. It handles trigonometry in degrees or radians, logarithms in base 10, e and 2, powers and roots, factorials, percentages, brackets, implicit multiplication like 2pi or 3(4+5), and an ANS key that carries the last answer into the next sum. A memory register and a strip of recent sums sit alongside, so a longer calculation can be built up in steps.

The formula

Brackets, then powers, then × and ÷, then + and −. Unary minus and postfix factorial and percent bind tightest.

Scientific Calculator: common questions

What does the Scientific Calculator work out?: A full scientific calculator with trig, logs, powers, roots, factorials and memory. It is one of the Math tools on Mondo Knows.
How is the Scientific Calculator calculated?: A working scientific calculator rather than a form: every key you press builds an expression you can see, and the answer updates as you type. It handles trigonometry in degrees or radians, logarithms in base 10, e and 2, powers and roots, factorials, percentages, brackets, implicit multiplication like 2pi or 3(4+5), and an ANS key that carries the last answer into the next sum. The maths is short enough to check by hand: Brackets, then powers, then × and ÷, then + and −. Unary minus and postfix factorial and percent bind tightest.
Do I need to sign up, and is my data stored?: No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo also knows

Log CalculatorLogarithms in any base, natural and common.➗ Math Exponent CalculatorPowers and roots, including fractional exponents.➗ Math Root CalculatorSquare roots, cube roots and any nth root.➗ Math Function GrapherPlot up to three functions at once and read points straight off the curve.➗ Math

Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.