Percent Error Calculator

Calculate percent error using |measured - actual| / |actual| × 100.

Author

Dr. Nadia Petrov

Math editorial contributor

Serbian biomedical engineer trained at Imperial College London, developing low-cost prosthetics for conflict zones

Reviewed by

Prof. Kenji Tanaka

Math content reviewer

Japanese materials scientist at Kyoto University, known for breakthroughs in sustainable polymer research

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. Reference values
  2. Calculator
  3. Reference table
  4. FAQs
  5. Methodology and review
  6. Related conversions

55 Measured Value; 50 Actual Value =

10 percent

Representative value from the Percent Error Calculator reference table.

Reference Values

Browse 20 reference values with individual detail pages for quick lookup.

Browse all reference values

Percent Error Calculator

Calculate percent error using |measured - actual| / |actual| × 100.

Calculated Result

Reference Table

Use this complete table for quick lookup and internal linking to specific value pages.

Frequently Asked Questions

Common questions about Percent Error Calculator, formulas, and typical use cases.

What does the Percent Error Calculator calculator do?

It helps with quantifying measurement accuracy relative to a known or accepted value.

What formula does the Percent Error Calculator calculator use?

Percent error = |measured - actual| / |actual| × 100.

What inputs are valid?

Actual value must be non-zero. Measured value can be any finite number.

When would I use this?

quantifying measurement accuracy relative to a known or accepted value

Methodology and Review

This page combines a live calculator, precomputed reference values, and FAQ content from the same conversion definition to reduce mismatch between calculator output and lookup tables.

Editorial metadata (author, reviewer, and update date) is rendered on the page and in structured data. See our editorial policy, review process, and corrections policy.

For compliance-sensitive work, verify final values against project requirements, governing standards, and manufacturer documentation.