Free craft calculators
for your next project
The math between you and your next project — no signup, just answers.
Quilting Blocks
Cutting sizes for HSTs, Flying Geese, hexagons, and whole quilts.
Open calculator →Yarn Yardage
How many skeins your project needs — before you cast on.
Open calculator →Cross Stitch
Fabric size, stitch counts, and DMC–Anchor thread conversions.
Open calculator →Candle Making
Wax weight, fragrance load, and wick sizes for any container.
Open calculator →Homebrew ABV
Alcohol %, gravity corrections, and priming sugar amounts.
Open calculator →- More tools coming soon
We're cutting the pieces for the next one.
Frequently asked questions
Are these calculators really free?
Yes — every calculator here is completely free, with no signup, no paywall, and no usage limits. Use them as often as you like.
How accurate are the results?
Each tool uses the standard formulas crafters rely on, with a worked example you can check. For anything physical — wick sizes, yarn estimates — treat the result as a well-calibrated starting point and test as you go.
Do I need an account to use the tools?
No. There's no account, login, or email required. Open a calculator and start typing — results appear instantly in your browser, and nothing is saved or sent anywhere.
How does mycraft.tools make money?
Some links to supplies are affiliate links: if you buy through them, we may earn a small commission at no extra cost to you. It never changes your price, and it never changes the math.
Can I suggest a new calculator?
Absolutely — we're always cutting the pieces for the next tool. Tell us what you'd find useful and it may become the next calculator on the site.