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How to use Rounding Calculator

Enter a number, choose a rounding mode and precision, and the rounded result appears instantly.

Frequently asked questions

What rounding modes are available?

Round to a set number of decimal places, to significant figures, or to the nearest 10, 100, 1000 and so on.

How does rounding to the nearest 100 work?

The number is snapped to the closest multiple of 100, so 1,234 becomes 1,200.

What is the standard rounding rule?

Digits 5 and above round up, digits below 5 round down (round-half-up), which this calculator uses.

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