All Tools VerseRound a Number
Round a number to a chosen number of decimal places using round half up, with float glitches corrected.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Calculated locally in your browser. Your number never leaves this tab.
How to Use Round a Number
- Enter a number. It can have decimals and a minus sign.
- Choose decimal places. How many digits to keep after the point.
- Round. The value is rounded half up, with floating-point glitches corrected.
- Copy the result. Click Copy result. It all runs in your browser.
Frequently Asked Questions
Which rounding rule is used?
Round half up, so a trailing 5 rounds away to the next digit. 2.5 at zero places becomes 3.
Does it fix floating-point errors?
Yes. It corrects the common glitches that make values like 1.005 round the wrong way, so it rounds to 1.01.
How many decimal places can I keep?
From zero up to fifteen, which covers everyday precision needs.
Can I round negative numbers?
Yes. Negative numbers are rounded by the same half-up rule applied to their magnitude.
Is anything uploaded?
No. The rounding runs in your browser, so your number never leaves the tab.
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