Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Sewing
Seam Allowance Fabric Calculator
Calculate how much extra fabric you need when changing the seam allowance from what a pattern specifies. Essential when adapting European (1 cm) patterns to US (5/8 inch) standards, or vice versa.
Fill in the required fields to see your result.
Sewing
Seam Allowance & Cutting Calculator
Computes the cutting dimensions of a fabric piece by adding seam and hem allowances to your desired finished size. Use it whenever you need to cut fabric accurately from a custom or self-drafted pattern.
Fill in the required fields to see your result.
Key differences
| Seam Allowance Fabric Calculator | Seam Allowance & Cutting Calculator | |
|---|---|---|
| Category | Sewing | Sewing |
| Inputs required | 4 | 4 |
| Result | Adjusted Fabric Needed (yards) | Cutting Dimensions (sq inches) |
| What it does | Calculate how much extra fabric you need when changing the seam allowance from what a pattern specifies. Essential when adapting European (1 cm) patterns to US (5/8 inch) standards, or vice versa. | Computes the cutting dimensions of a fabric piece by adding seam and hem allowances to your desired finished size. Use it whenever you need to cut fabric accurately from a custom or self-drafted pattern. |