ROUNDUP Function in Excel

Beginner

Rounds a number up, away from zero.

Syntax

=ROUNDUP(number, num_digits)

Example

Use Case

Calculate minimum boxes needed (always round up partial boxes).

Common Errors to Avoid

  • Always rounds away from zero, even for negative numbers
  • ROUNDUP(-2.3, 0) = -3 (not -2)
  • Different from CEILING - ROUNDUP uses num_digits, CEILING uses significance

Pro Tips

Perfect for inventory/packaging calculations where you need whole units. Use num_digits=0 for next whole number. For always rounding to nearest integer up, use CEILING instead. Combine with division for 'how many X fit in Y' problems.

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