Rounding Calculator
Rounded value = round(Number × 10^d) ÷ 10^d where d = decimal placesround(3.14159×100)÷100=round(314.159)÷100=314÷100=3.14
Free online tool
Rounding Calculator
Enter any number and choose how many decimal places to round to.
Instant calculation
Rounding Calculator
Enter any number and choose how many decimal places to round to.
Your result
Calculation
Your numbers stay in this browser. Nothing is uploaded or saved.
Three clear steps
How to use this calculator
- 01
Enter number
Type the decimal number to round.
- 02
Enter decimal places
Type how many decimal places to keep.
- 03
See rounded value
Calculate to see the number rounded to the specified precision.
The formula
How this calculation works
Uses standard rounding: 5 and above rounds up, below 5 rounds down.
Check the method
Worked examples
Each example follows the same formula used by the calculator.
Round 3.14159 to 2 decimal places?
round(3.14159×100)÷100=round(314.159)÷100=314÷100=3.143.14Common questions
Questions about this calculation
What is the Rounding Calculator?
The Rounding Calculator helps you round a number to a specified number of decimal places. Enter your values and select Calculate to get an instant result.
How is the result calculated?
Uses standard rounding: 5 and above rounds up, below 5 rounds down.
Can you show an example?
Example: Round 3.14159 to 2 decimal places? — 3.14.
Is my data saved when I use the Rounding Calculator?
No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.
Is the Rounding Calculator free to use?
Yes. The Rounding Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.
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