Yarn Substitution Calculator for Patterns - EasyCrochet.com
Milarrochy Tweed
Yarn weight conversion chart and beginner's guide | Gathered
Sewrella - HOW TO CHOOSE YARN SUBSTITUTIONS FOR BLANKETS Are you stuck trying to figure out what yarn to substitute in a pattern because you can't find the one it calls for?
Help! My yarn is acrylic/discontinued/out-of-stock/expensive: How do I substitute my yarn?