Shawl Calculator — Yarn and Dimensions for Knitted Shawls
Calculate yarn requirements and cast-on counts for triangular, crescent, semicircular, and rectangular shawls.
Full width from tip to tip
Centre depth or radius
How We Calculate This
This calculator estimates yarn for different shawl shapes based on the fabric area and yarn weight.
Area by shape
- Triangular: Wingspan x depth / 2
- Crescent: Wingspan x depth x 0.6
- Semicircular: Pi x radius squared / 2
- Rectangular: Wingspan x depth
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates based on standard yarn weights and gauge. Results may vary with individual tension, yarn brand, and needle size.