Warp Length Calculator
Calculate weaving warp length accounting for loom waste, take-up, shrinkage, and sampling length.
Inputs
Desired finished length
Unusable warp at each end
Warp consumed by interlacement
Ends per inch
Width lost from warp tension
Results
Warp Length
115 in
Warp Length
3.17 yd
Total Ends
267 ends
Total Warp Yarn
848 yd
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Start FreeWarp Length Calculator
Artisan by Irora Labs
March 23, 2026
Inputs
| Finished Length | 72 in |
| Number of Items | 1 |
| Loom Waste | 24 in |
| Take-up | 10 % |
| Shrinkage | 5 % |
| Sampling Length | 6 in |
| Ends per Inch (EPI) | 12 |
| Finished Width | 20 in |
| Draw-in | 10 % |
Results
| Warp Length | 115 in |
| Warp Length | 3.17 yd |
| Total Ends | 267 ends |
| Total Warp Yarn | 848 yd |
Created with Artisan. artisan.iroralabs.com/craft-calculators/warp-length
Tips
Open formula
Works backwards from desired finished length, adding allowances for shrinkage, take-up, waste, and sampling.
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