Enter the nominal size and the actual size into the calculator to determine the tolerance factor. This calculator helps in assessing the manufacturing precision of a component.
Tolerance Factor Formula
The following formula is used to calculate the tolerance factor:
TF = (AS - NS) / NS
Variables:
- TF is the tolerance factor
- AS is the actual size of the component (mm)
- NS is the nominal size of the component (mm)
To calculate the tolerance factor, subtract the nominal size from the actual size, then divide by the nominal size. The result is a dimensionless number that represents the relative difference between the actual and nominal sizes.
What is a Tolerance Factor?
A tolerance factor is a numerical value that represents the deviation of an actual measured size from its nominal size, relative to the nominal size itself. It is a critical measure in quality control and manufacturing processes to ensure that parts meet specified tolerances and fit together properly in assemblies.
How to Calculate Tolerance Factor?
The following steps outline how to calculate the Tolerance Factor.
- First, determine the nominal size of the component (NS) in millimeters.
- Next, measure the actual size of the component (AS) in millimeters.
- Use the formula TF = (AS – NS) / NS to calculate the tolerance factor.
- Finally, compare the calculated tolerance factor with the acceptable tolerance range for the component.
- 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.
Nominal size of the component (NS) = 50 mm
Actual size of the component (AS) = 50.05 mm
