Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Sewing
Elastic Length Calculator
Calculate the exact elastic length for waistbands, sleeve cuffs, and casings so garments fit snugly without distortion. Accounts for body measurement, elastic type, seam allowance, and desired gathering.
Fill in the required fields to see your result.
Sewing
Zipper Length Calculator
Compute the minimum zipper length to buy for a given opening length and zipper type, accounting for slider parking and stop placement. Useful when shopping zippers before starting construction so you do not buy short.
Fill in the required fields to see your result.
Key differences
| Elastic Length Calculator | Zipper Length Calculator | |
|---|---|---|
| Category | Sewing | Sewing |
| Inputs required | 4 | 2 |
| Result | Elastic Length to Cut (inches) | Recommended Zipper Length (inches) |
| What it does | Calculate the exact elastic length for waistbands, sleeve cuffs, and casings so garments fit snugly without distortion. Accounts for body measurement, elastic type, seam allowance, and desired gathering. | Compute the minimum zipper length to buy for a given opening length and zipper type, accounting for slider parking and stop placement. Useful when shopping zippers before starting construction so you do not buy short. |