Enter the observed value and the true value into the calculator to determine the correction factor. This factor is used to adjust measurements for improved accuracy.

Correction Factor Formula

The following formula is used to calculate the correction factor:

CF = TV / OV


  • CF is the correction factor
  • TV is the true value
  • OV is the observed value

To calculate the correction factor, divide the true value by the observed value.

What is a Correction Factor?

A correction factor is a multiplier used to adjust measurements to account for systematic error. It is the ratio of the true value to the observed value and is applied to calibrate instruments or to correct the results of an experiment or measurement.

How to Calculate a Correction Factor?

The following steps outline how to calculate the Correction Factor.

  1. First, determine the observed value (OV).
  2. Next, determine the true value (TV).
  3. Use the formula CF = TV / OV to calculate the correction factor (CF).
  4. Finally, apply the correction factor to the observed value to get the corrected value.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Observed Value (OV) = 95 units

True Value (TV) = 100 units