Percentage Error Calculator
Measure the accuracy of an observed or measured value against a true or accepted value. Percentage error is a common metric in scientific experiments, engineering, quality control, and any field where precision is important.
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Enter values and click calculate.
Formula: PE = (|Observed - True|) / |True| * 100%
Understanding Percentage Error
Percentage error quantifies the discrepancy between an observed (measured) value and a true (accepted or theoretical) value, relative to the true value. It's a crucial indicator of the accuracy of a measurement or calculation.
- A low percentage error indicates that the observed value is close to the true value, signifying high accuracy.
- A high percentage error indicates a significant deviation from the true value, suggesting lower accuracy.
- It is widely used in scientific experiments, engineering tolerances, financial modeling, and quality assurance to validate results and processes.