Rounding Calculator
Round numbers to decimal places, significant figures, fractions, powers of ten, or custom increments.
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For calculations, keep extra precision during intermediate steps and round the final answer to the precision you need.
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Try the same number with a different precision without changing your main result.
Calculate your baseline first
It divides the number by the chosen rounding step, applies the selected method, then multiplies back by the step. Decimal places, units, tens and custom increments are all handled locally in your browser.
Decimal places count digits after the decimal point. Significant figures count meaningful digits from the first non-zero digit, so they adapt to the size of the number.
Use a custom increment when values must land on fixed steps, such as rounding to the nearest 0.25, nearest 5, nearest 15 minutes, or nearest pricing tick.
Results are estimates generated locally in your browser using standard rounding arithmetic. Floating-point numbers can have tiny representation differences, so values are formatted for practical use. This tool is for informational purposes only. VisionVix accepts no liability for decisions based on this output.