Percent Error Calculator
Calculate percent error between observed and true values with detailed steps
Calculate the percent error between observed and true values with detailed step-by-step breakdown.
Result
Enter your values and click Calculate↓
Formula:
Percent Error = (Observed Value - True Value) / True Value × 100
A negative result indicates the observed value is less than the true value. A positive result indicates the observed value is greater than the true value.
💡 Tip: Press Ctrl+Enter to calculate, Esc to clear