Rounding Calculator
Round numbers to any decimal places, significant figures, or nearest value.
Rounding rule used here: the digits you type are rounded exactly as written, and a value exactly halfway rounds away from zero (2.5→3, −2.5→−3, 1.005 to 2 places→1.01). Banker's rounding (round half to even, 2.5→2, 3.5→4) is a different convention and is not used here. Significant figures indicate measurement precision; trailing zeros are kept.