![]() The average result, x, is calculated by summing the individual results and dividing this sum by the number (n) of individual values: x x 1 + x 2 + x 3 + x 4 +. You can then compare your data with the average of everybody’s data. In the below online relative error calculator, enter the true value and measured value in the respective input boxes and then click calculate to find both absolute error and relative error. data, then calculating the average, standard deviation, and relative standard deviation. Therefore, the relative error for the given values = 2.43% Now, let us find out the relative error = absolute error/True value x 100 We know by subtracting true value with measured value we get absolute error = 123 - 120 = 3cms Relative error is expressed as a fraction or is multiplied by 100 and expressed as a percent. Relative error expresses how large the absolute error is compared with the total size of the object you are measuring. But the actual value of the wood is 123 cms. You first need to determine absolute error to calculate relative error. Relative Error Solved Example Example: A piece of wood was measured and found to be 120 cms. To calculate relative error, divide absolute error by true value and multiply by 100 to find relative error in percent. The absolute error can be calculated by subtracting true value with measured value. To calculate relative error, we should also calculate absolute error. ![]() ![]() Relative error can be explained as the amount uncertainty of measured value versus the true value.
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