Baby Garment Calculator — Yarn and Sizing for Baby Knits
Calculate yarn requirements and stitch counts for baby garments based on age, measurements, and yarn weight.
Override the age default
Shoulder to hem
How We Calculate This
This calculator estimates yarn for baby garments using body and sleeve areas calculated from chest circumference and length, adjusted for yarn weight.
How it works
- Body area: Chest circumference (with ease) x body length
- Sleeve area: 33% of chest width x sleeve length x 2
- Yarn: Total area x yarn weight factor
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.