Percentage Error Calculator
Calculate percentage error between experimental and theoretical values — plus absolute and relative error.
The experimental value is 0.101937% lower than the theoretical value (Percentage Error: 0.101937%).
Formula: |Experimental - Theoretical|
Substitution: |9.8 - 9.81| = 0.01
Formula: Absolute Error / |Theoretical|
Substitution: 0.01 / |9.81| = 0.001019
Formula: Relative Error × 100%
Substitution: 0.001019 × 100 = 0.101937%
Percentage Error Formula & Interpretation
Percentage error measures how far an experimental measurement is from the accepted (theoretical) value: % error = (|E − T| / |T|) × 100.
A positive signed deviation means the experiment over-estimated; negative means under-estimated. Absolute error gives the raw difference, while relative error normalizes it to the scale of the measurement.
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