Enter the actual value and the measured value into the calculator to determine the bias percentage.

Bias Percentage Calculator

Enter any 2 values to calculate the missing variable





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Bias Percentage Formula

The following formula is used to calculate the bias percentage for a given actual value and measured value.

B = ((M - A) / A) * 100

Variables:

  • B is the bias percentage
  • A is the actual value
  • M is the measured value

To calculate the bias percentage, subtract the actual value from the measured value, divide the result by the actual value, and multiply by 100 to get the percentage.

What is Bias Percentage?

Bias percentage is a measure of the difference between an actual value and a measured value, expressed as a percentage of the actual value. It is commonly used in various fields such as statistics, engineering, and science to assess the accuracy and reliability of measurements and predictions. A positive bias percentage indicates that the measured value is higher than the actual value, while a negative bias percentage indicates that the measured value is lower than the actual value.

How to Calculate Bias Percentage?

The following steps outline how to calculate the Bias Percentage.


  1. First, determine the actual value (A).
  2. Next, determine the measured value (M).
  3. Next, calculate the bias percentage using the formula B = ((M – A) / A) * 100.
  4. Finally, calculate the Bias Percentage.
  5. After inserting the values 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.

Actual Value (A) = 100

Measured Value (M) = 105