Absolute & Relative Error Calculator
Result
Absolute & Relative Error Calculator This absolute and relative error calculator compares a measured value with the true (actual) value to quantify how far off a measurement is. Enter your measured value M and the actual value A, and it returns the absolu — free online calculator.
Formula
- Absolute & Relative Error Calculator calculates its result from Mass, A, Re. It uses the formula Absolute Error = |M − A| · Relative Error = |M−A|/|A| · Accuracy = (1 − RE) × 100%. Change any input to recalculate the result instantly.
- The main inputs are Measured Value, Actual (True) Value. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Absolute & Relative Error
- Measured Value: 98.5
- Actual (True) Value: 100
Using Mass = 2, A = 3, Re = 4, the calculated result is -3.
Sample result: Calculating…
Frequently asked questions
What does the Absolute & Relative Error calculate?
Absolute & Relative Error Calculator This absolute and relative error calculator compares a measured value with the true (actual) value to quantify how far off a measurement is. Enter your measured value M and the actual value A, and it returns the absolu — free online calculator.
Which values should I enter?
Enter Measured Value, Actual (True) Value using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Absolute Error = |M − A| · Relative Error = |M−A|/|A| · Accuracy = (1 − RE) × 100%.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.