Fabric Shrinkage Calculator
Calculate how much extra fabric to buy accounting for shrinkage during pre-washing
About this calculator
The Fabric Shrinkage Calculator helps sewers and crafters determine exactly how much extra fabric to purchase before starting their project. By accounting for shrinkage that occurs during pre-washing, this tool prevents the frustration of running short on fabric mid-project. Whether you're working with cotton, linen, wool, or blended fabrics, calculating shrinkage beforehand ensures you have sufficient material to complete your sewing project successfully, saving both time and money on additional fabric purchases.
How to use
Enter your required fabric amount and select your fabric type or input the expected shrinkage percentage. The calculator will instantly show how much additional fabric you need to buy. Purchase the recommended total amount, then pre-wash your fabric before cutting to ensure accurate measurements for your sewing project.
Frequently asked questions
What fabrics shrink the most?
Natural fibers like cotton, linen, and wool typically shrink 3-10%, while synthetic fabrics like polyester shrink minimally, usually under 2%.
Should I always pre-wash fabric?
Yes, pre-washing removes chemicals, prevents future shrinkage, and ensures color-fastness, especially important for garments that will be washed regularly.
Does fabric shrink length and width equally?
No, fabrics typically shrink more in length (along the grain) than width, with lengthwise shrinkage often 2-3 times greater.