What is banker's rounding?

It rounds .5 values to the nearest even number, reducing statistical bias compared to always rounding up.

Can I round to a multiple like 5 or 25?

Yes, choose Nearest multiple mode and set the multiple value.

Can I process many numbers at once?

Yes, paste as many numbers as you like separated by commas, spaces, or new lines.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Rounding Calculator

Round, floor, ceil, or truncate a list of numbers to decimals or multiples.

Support

Works Offline

Privacy First

No Login

No API

Numbers

Separate values with commas, spaces, or new lines

Mode

Decimal places

Results

Rounded values

Input	Result
3.14159	3.14
2.5	2.5
-1.5	-1.5
10.005	10.01
7.25	7.25

About the Rounding Calculator

Round a batch of numbers using standard rounding, floor, ceiling, truncation, banker's rounding (round half to even), or rounding to the nearest multiple.

Examples

Round 2.5 (bankers)

2.5

Output

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser