Engineering

IMPOWER Function in Excel

Returns a complex number raised to an integer power.

Syntax

  • =IMPOWER(inumber, number)

Arguments

  • inumber (required): Complex number
  • number (required): Power to raise to

Examples

  • =IMPOWER("2+3i", 3) - (2+3i)^3 - Result: -46+9i

IMPOWER in technical sheets

  • Document units in adjacent cells — many engineering functions require exact unit strings.
  • Use [CONVERT](/functions/convert/) for unit changes before specialized formulas.
  • Validate inputs with [ISNUMBER](/functions/isnumber/) and range checks.

Common errors

  • #NUM! if not valid complex number

Use cases

  • Complex analysis
  • Engineering
  • Mathematics

Frequently asked questions

  • What is the IMPOWER function in Excel? IMPOWER returns a complex number raised to an integer power. The syntax is =IMPOWER(inumber, number). Typical use cases include complex analysis, engineering, mathematics.
  • How do I use the IMPOWER function? To use IMPOWER, type =IMPOWER( in a cell and provide the required arguments. Excel will show you the syntax and parameter hints as you type. Make sure to close the parentheses and press Enter to execute the function.
  • Why is IMPOWER not working in my Excel? Common issues with IMPOWER include #NUM! if not valid complex number. Start by checking the syntax =IMPOWER(inumber, number), then verify each referenced cell or range.

Editorial review

  • Reviewed by Excel.Directory Editorial Team. Updated May 2026.