Significant Figure Calculator

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Significant Figures Calculator

Round numbers to specified sig figs

Number

Significant Figures

Result:

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Enter a number and sig figs, then click calculate.

What are significant figures?

Significant figures (sig figs) are digits that carry meaning contributing to a number's precision. Our calculator rounds any number to the desired number of significant figures using standard rules.

💡 Example: 0.0045600 with 3 sig figs → 0.00456

© SigFig Master — Accurate rounding for science & math. Supports standard sig fig rules.