Fabric Shrinkage Calculator

Calculate fabric shrinkage percentage and determine pre-cut dimensions to achieve desired finished size after washing.

Inputs

Pre-Wash Length

Pre-Wash Width

Post-Wash Length

Post-Wash Width

Tab to move between fields

Results

Length Shrinkage

4.17%

Width Shrinkage2.22%

Area Shrinkage6.3%

Required Cut Length37.57 in

Required Cut Width46.02 in

How to Use This Calculator

Enter Pre-Wash Length, Pre-Wash Width, and Post-Wash Length.
Set Post-Wash Width, Target Finished Length, and Target Finished Width.
Review the Length Shrinkage (%) result.
Use Width Shrinkage (%) and Area Shrinkage (%) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Pre-Wash Length

Pre-Wash Length	Length Shrinkage
51	32.35%
176	80.4%
325	89.38%
450	92.33%

What each input means

Pre-Wash Length: Measured length before washing
Pre-Wash Width: Measured width before washing
Post-Wash Length: Measured length after washing and drying
Post-Wash Width: Measured width after washing and drying
Target Finished Length: Desired finished length after shrinkage
Target Finished Width: Desired finished width after shrinkage

How this is calculated

Worked example, using the default values

Identify Input Parameters
4 parameters
Pre-Wash Length = 36, Pre-Wash Width = 45, Post-Wash Length = 34.5, Post-Wash Width = 44 = 6 input(s) provided
Calculate Length Shrinkage
Length Shrinkage
4.17 = 4.17%
Calculate Width Shrinkage
Width Shrinkage
2.22 = 2.22%
Calculate Area Shrinkage
Area Shrinkage
6.3 = 6.3%

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