Rounding Calculator
Round or truncate values to decimal places, tens, hundreds, or thousands.
Result
Round 12.345 to 2 decimal places = 12.35
Formulas
Round to decimal places
round(x × 10ⁿ) ÷ 10ⁿTruncate
trunc(x × 10ⁿ) ÷ 10ⁿExamples
Frequently Asked Questions
How do up and down work with negative numbers?
Up moves toward positive infinity; down moves toward negative infinity.
What does truncate do?
Truncate removes digits beyond the selected place by moving toward zero.