Percent Error
Calculator

Inputs

Percent error (%)
2

Results

Percent error (%)
2
Absolute error
2

Results

Percent error (%)2
Absolute error2

formula-map diagram

Percent error (%)
2
Absolute error
2

Formula map

Formula

% error = |measured − actual| ÷ |actual| × 100

= 2

Note

Simplified model: these are exact results of the stated idealised formulas, assuming perfect shapes and exact inputs. Real measurements carry error, and the ellipse perimeter is a Ramanujan approximation. Verify independently before relying on these figures.

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