
Yarn Math
Knitting calculator
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Free
In-App Purchases
About
Want to use a different yarn for your pattern? Make the project your own, use yarn from your stash, or compare a cheaper alternative. Yarn Math helps you check the thickness match and estimate how much you’ll need.
• Compare length and weight per skein.
• Find which number of strands gives the closest thickness match.
• Estimate how much yarn your project needs and how many skeins to buy.
• Account for yarn you already have.
• Compare two yarns held together with one yarn, in either direction.
• Convert to meters per 50 g or yards per 1.8 oz.
• Save calculations on your device. Add yarn names and prices to track costs and potential savings.
• Choose your language and measurement units in Settings.
Results are estimates based on the information you enter. Knit a gauge swatch before starting your project. A subscription is required to use the calculators.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://yarn-match-calculator.replit.app/privacy-policy
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What's New in Yarn Math
1.0
October 8, 2026
1
Subscriptions & In-App Purchases
Yarn Math
Yarn replacement, made easy
$0.991 Month
3 Days trial





