Units & Numbers Tools
Number Rounding Tool
Round numbers to a chosen precision or decimal places.
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What is Rounding?
A flexible rounding tool with two modes: decimal places for everyday values and step rounding for pricing/inventory (nearest 0.05, 5, 10…).
How it works
Decimal mode uses scale-then-floor arithmetic; step mode divides by the step, rounds, and multiplies back — with banker's rounding as an option.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Paste or type any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.