Rounding Calculator (Decimals, Nearest 10, Significant Figures)
Math ToolsRound to decimals, nearest 10/100, sig figs
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All history →Rounding Calculator (Decimals, Nearest 10, Significant Figures) — at a glance
Round a number exactly the way you need — decimals, tens or significant figures.
1234.5678
2 decimals
Round Number
1234.57
How to use it — step by step
A number and how you want to round it.
1
Enter your numbers
Fill in the fields — sensible example values are already filled in.
2
Pick your options
Choose any dropdowns or switches that apply to your case.
3
Round Number
Press the button. The result is created instantly on your device.
4
Read the answer
The main answer is shown big at the top, with details below it.
Pro tips
Small things that make the result better.
✦0.5 always rounds away from zero here (round half up).
✦Nearest 100 with 1234 gives 1200.
✦Significant figures count from the first non-zero digit.
Quick facts
Freeno signup, no limit
Instantresult in a moment
Privatenothing is uploaded
Any devicephone, tablet or PC
Frequently Asked Questions
What is a significant figure?+
A digit that carries meaning, counted from the first non-zero digit.
How is 2.5 rounded?+
To 3 with round-half-up.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
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