✓ Effortless Math · Free Tool

Rounding & Significant Figures Calculator

Round any number to the nearest 1000, 100, or 10, to a whole number, to a place value, to a chosen number of decimal places, or to significant figures — with full step-by-step working.

Uses the round-half-up rule: if the next digit is 5 or more, round up; otherwise round down.
Number round to Round to N

Enter a number and choose what to round to. For decimal places or significant figures, also enter N. Decimals and negatives are fine.

Results

Rounded value
—
—
Rounding target
—
Digit examined
—
Round up or down?
—
Original number
—

Step-by-step