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US ↔ UK crochet converter

Change the stitch names in your pattern. Keep your original text alongside.

Free, no sign-upRuns in your browser

Your original instructions

Text stays here
Up to 20,000 characters. Choose the source system yourself; “dc” alone cannot tell us which one it is.

Your result, explained

Enter your details and use the button. We’ll show the answer and how it was worked out.

Doctor checks supported crochet instructions. It does not certify physical fabric.

The standard terms, side by side
Basic US–UK stitch equivalents
USUK
sc · single crochetdc · double crochet
hdc · half double crochethtr · half treble crochet
dc · double crochettr · treble crochet
tr · treble crochetdtr · double treble crochet
dtr · double treble crochettrtr · triple treble crochet
sl st · slip stitchss · slip stitch

The converter also handles the listed stitch abbreviations with 2tog/3tog, FP/BP prefixes and their combinations, full stitch names ending in “crochet”, yo/yoh, gauge/tension, and recognised source-system headings.

Reference: Craft Yarn Council terminology and abbreviations. A pattern can define its own special abbreviations.

Keep the meaning intact

Does it translate the whole pattern?

It replaces supported crochet terminology in English text. It does not translate languages, validate the counts, interpret a missing diagram or rewrite special-stitch definitions.

Why did it stop at a definition?

Exact standard definitions such as “sc = single crochet” can be converted. When the text appears to assign its own meaning to a recognised term, automatic replacement could change the design. Review the definition manually before converting the remaining instructions.

Are my pattern or notes uploaded?

No. Conversion happens in this browser. The share button copies only this tool’s address. Checking in Doctor transfers your original text and chosen source terminology temporarily within this browser tab, not in a URL or to a server.

How do I check the converted pattern?

Use “Check original in Doctor” and review the unchanged source text and selected terminology before running its check. Doctor reads supported instructions; unread rows and real fabric still need your attention.

Ready to check the whole pattern?

Use your result in your instructions, then review supported counts and placements with Pattern Doctor.

Check a pattern →

Making a sample? Keep your crochet test notes with the exact pattern version, yarn, hook and what happened. Your notes stay on your device.