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Rounding Calculator

Round numbers to decimal places, significant figures or the nearest 10, 100 or 0.05 — with half-up, banker’s and other methods.

Runs instantly in your browser — results update as you type.

How do you round to 2 decimal places?

Look at the third decimal digit: if it is 5 or more, round the second digit up; otherwise leave it. So 3.14159 rounds to 3.14 and 2.675 to 2.68 (half up). Banker’s rounding sends exact halves to the even digit instead, e.g. 2.5 → 2 and 3.5 → 4.

Methods

  • Half up — the school method.
  • Half to even — banker’s rounding, used in finance and IEEE 754 to avoid bias.
  • Up / down — ceiling and floor.
  • Truncate — drop extra digits.

Frequently asked questions

What are significant figures?

All digits from the first non-zero one: 0.004560 has 4 significant figures.

How do I round to the nearest 0.05?

Choose “Nearest multiple” and enter 0.05 — common for cash prices.

Is it free?

Yes.