About Crochet Calc
Helping crocheters plan projects with confidence since 2023.
Our Story
Crochet Calc was born out of frustration — the deeply personal frustration of running out of yarn on the last 20 rows of a queen-size blanket at 2 AM. After decades of crocheting, our founder Sarah Mitchell had filled notebooks with hand-calculated yarn estimates, gauge conversion tables, and hook reference charts. She realized thousands of other crocheters were doing the same thing: making the same calculations by hand, making the same mistakes, and wasting money on yarn they didn't need — or worse, not buying enough.
In 2023, Sarah partnered with a small team of fellow fiber artists and web developers to turn those hand-written notebooks into free, professional-grade online tools. The goal was simple: make the math invisible so crocheters can focus on the creative, meditative joy of the craft itself. No sign-ups, no paywalls, no data collection — just tools that work, built by people who actually use them.
Today, Crochet Calc serves crocheters and knitters in over 40 countries with five interactive calculators and a growing library of in-depth educational guides. Every article is researched, fact-checked against industry standards, and reviewed by experienced fiber artists before publication. We don't run ads, sell data, or accept sponsored content — our only metric of success is whether our tools actually help you finish your next project.
Meet the Team
Sarah has been crocheting for over 20 years, starting with her grandmother's single-crochet dishcloths and progressing to complex lace shawls, garments, and amigurumi. She is a Craft Yarn Council (CYC) Certified Instructor and has published over 50 original crochet patterns on Ravelry. Sarah personally tests every calculator formula against real-world gauge swatches and writes the core educational content for our guides. When she's not crocheting, she's probably buying yarn she doesn't need.
James is a front-end developer and hobbyist knitter who builds the calculators and maintains the website. He ensures every formula is mathematically accurate, validates against CYC published standards, and optimizes for speed and accessibility. James learned to knit from his wife during the 2020 lockdowns and quickly became obsessed with the engineering side of fiber crafts — tension physics, yarn twist mathematics, and gauge prediction models.
Maria is a retired fiber arts instructor with 30 years of teaching experience at community colleges and craft workshops across the Southwest US. She reviews every article for accuracy, ensures all advice aligns with current industry best practices, and verifies that our calculator recommendations match Craft Yarn Council and CGOA (Crochet Guild of America) published standards. Maria specializes in yarn fiber science and tension analysis.
Our Mission
We believe every crocheter — from someone picking up a hook for the first time to a professional pattern designer — deserves free access to accurate, reliable planning tools. Running out of yarn, miscalculating blanket dimensions, or using the wrong hook size shouldn't be barriers to enjoying this beautiful craft. Our mission is to eliminate those frustrations with tools that are simple enough for beginners but precise enough for professionals.
Our Standards
All content on Crochet Calc follows our Editorial Standards. Every article is written by experienced crocheters, fact-checked against industry references, and reviewed before publication. Our calculator formulas are derived from Craft Yarn Council published gauge standards and validated through real-world swatch testing. We don't publish advice we haven't personally tested with a hook in hand.
Contact Us
Have a question about our tools, found a bug, or want to suggest a feature? Visit our Contact page to reach the team directly. We respond to every message within 48 hours.