Fabric Dimensional Shrinkage Calculator
Calculate fabric dimensional shrinkage from the stated quantities. Negative reductions indicate growth. Area change combines both directional ratios.
Reference calculation or estimate for example inputs; assumptions and limitations apply.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| Initial length (cm) | Enter initial length in cm; use the same basis as the other measurements. |
| Final length (cm) | Enter final length in cm; use the same basis as the other measurements. |
| Initial width (cm) | Enter initial width in cm; use the same basis as the other measurements. |
| Final width (cm) | Enter final width in cm; use the same basis as the other measurements. |
Understanding your result
Negative reductions indicate growth. Area change combines both directional ratios.
Common mistakes
- Do not add or average directional percentages to obtain area change.
Check your calculation
- Use the worked example as a known reference case, then change one input at a time and check the direction and units of the response.
Calculation checks, sources and review limits
How much did fabric length and width change after a specified test?
Calculate fabric dimensional shrinkage from the stated quantities. Negative reductions indicate growth. Area change combines both directional ratios.
Common uses
- How much did fabric length and width change after a specified test
How it works
lengthShrink=100*(beforeL-afterL)/beforeL; widthShrink=100*(beforeW-afterW)/beforeW; areaShrink=100*(1-afterL*afterW/(beforeL*beforeW))
Worked example
Enter Initial length: 100 cm; Final length: 95 cm; Initial width: 100 cm; Final width: 98 cm. Results: Length reduction: 5 %; Width reduction: 2 %; Area reduction: 6.9 %.