Calculate a weighted average from value and weight pairs.
Runs in your browserCalculators
Category: Calculators
Rounding Calculator
Round a number to decimal places or powers of ten using four methods.
Runs in your browserProcessed locally. Your input never leaves your device.
Calculation inputs
Result
Your result appears here.
Details
About this tool
Round to the nearest value, down, up or toward zero. Positive places control decimal digits and negative places round to tens, hundreds and larger powers of ten.
The selected method is shown with the result, which makes the difference between floor and truncation clear for negative numbers.
Keep going
Related tools
-
-
Percent of a number, percentage change, add or subtract a percent.
Runs in your browserCalculators -
Add, subtract, multiply and divide two fractions with a simplified result.
Runs in your browserCalculators
Good to know
Questions people actually ask
- How do I round to the nearest hundred?
- Set decimal places to -2. For example, 1,249 rounds to 1,200 with the nearest method.
- How is floor different from truncation?
- Floor moves toward negative infinity, while truncation moves toward zero. For -1.7, floor gives -2 and truncation gives -1.