Math & Trig

EXP Function in Excel

Returns e raised to the power of a given number.

Syntax

  • =EXP(number)

Arguments

  • number (required): The exponent to raise e to

Examples

  • =EXP(1) - e to the 1st power - Result: 2.718...
  • =EXP(2) - e squared - Result: 7.389...

EXP in reporting workflows

  • Use absolute references when copying formulas across rows.
  • For conditional totals see [SUMIF](/functions/sumif/) and [SUMIFS](/functions/sumifs/).
  • Filtered lists may need [SUBTOTAL](/functions/subtotal/) instead of SUM on visible cells only.

Common errors

  • Very large numbers may cause overflow

Use cases

  • Exponential growth
  • Continuous compounding
  • Scientific calculations

Frequently asked questions

  • What is the EXP function and what is 'e'? EXP returns e (Euler's number, approximately 2.71828) raised to a power. The constant e is fundamental in mathematics for modeling continuous growth, compound interest, and natural phenomena. EXP(1) = e, EXP(2) = e², etc.
  • How do I calculate continuous compound interest with EXP? Use =Principal*EXP(rate*time). For $1000 at 5% continuously compounded for 10 years: =1000*EXP(0.05*10) = $1,648.72. This is slightly more than regular compound interest because growth is truly continuous.
  • What is the relationship between EXP and LN? EXP and LN are inverse functions. LN(EXP(x)) = x and EXP(LN(x)) = x. If you have a growth rate from LN, use EXP to convert back to a multiplier. Example: LN(2) ≈ 0.693, and EXP(0.693) ≈ 2.

Editorial review

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