Free Significant Figures Calculator - Rounds a number to a select number of significant figures

This calculator has 1 input.

This calculator has 1 input.

Step 1: Find the 4th decimal place

Look at the decider digit, which is the next digit to the right (r + 1)

If decider digit is ≥ 5, round up

For more math formulas, check out our Formula Dossier

Look at the decider digit, which is the next digit to the right (r + 1)

If decider digit is ≥ 5, round up

For more math formulas, check out our Formula Dossier

- decimal place
- the position of a digit to the right of a decimal point.
- digit
- Any of the numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) used to construct a number
- number
- an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
- rounding to decimal places
- signficant
- truncate
- Approximation method of a number by dropping all decimal places after a certain number