Percent error calculator

Approximated/measured value:
Exact/actual value:
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Percent error:
Percent error non absolute:
Absolute error:

Percentage calculator ►

Percent error calculation

The absolute error is equal to the absolute value of the difference between the exact value and the approximated value:

ε = | V_exact - V_approx |

The percent error is equal to the 100% times the absolute error divided by the exact value:

δ = 100% × | V_exact - V_approx | / | V_exact |

Percentage calculator ►

See also

• Percentage (%)
• Percentage calculator
• Percentage change calculator
• Percentage increase calculator
• Percent to fraction
• Fraction to percent
• Percent to decimal
• Decimal to percent
• Percent to ppm
• ppm to percent
• Per-mille (‰)
• Parts-per million (ppm)
• Math symbols

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