Tools & Apps6 min readSeptember 2026

How to Convert UK to US Crochet Terms

Learn how to easily convert crochet terms from UK to US.

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Tools & Apps

6 min read

When you dive into the world of crochet, you may come across patterns that use different terminologies based on geographic locations. For instance, UK and US crochet terms can vary significantly, making it challenging for crocheters to follow patterns from different regions. If you’ve ever felt lost trying to decipher these terms, this guide is here to help you understand how to convert UK to US crochet terms seamlessly.

Understanding the Basics

Before we delve into the specifics of converting crochet terms, let’s clarify the main differences between UK and US terminology. In essence, a few terms refer to different stitches or techniques, which can lead to confusion if not addressed. Knowing these key differences is crucial for your crochet success.

Key Differences in Terms

Here’s a quick comparison of some common crochet terms that differ between the UK and the US:

UK TermUS Term
Double CrochetSingle Crochet
Treble CrochetDouble Crochet
Half Treble CrochetHalf Double Crochet
Chain StitchChain Stitch
Slip StitchSlip Stitch
Single CrochetDouble Crochet

Understanding this table is the first step in converting your patterns. Now, let’s explore how to effectively make these conversions when reading or designing crochet patterns.

Converting Stitches

When you encounter a crochet pattern, the first thing to do is identify the stitches used. Knowing how to convert these stitches will help you follow the pattern accurately. Here’s a simple guide to converting the most frequently used stitches:

  1. Single Crochet (US) / Double Crochet (UK)

    • US: Single Crochet (sc)
    • UK: Double Crochet (dc)
    • Conversion: For every dc you see in a UK pattern, use sc in a US pattern.
  2. Double Crochet (US) / Treble Crochet (UK)

    • US: Double Crochet (dc)
    • UK: Treble Crochet (tr)
    • Conversion: For every tr, use dc in US terms.
  3. Half Double Crochet (US) / Half Treble Crochet (UK)

    • US: Half Double Crochet (hdc)
    • UK: Half Treble Crochet (htr)
    • Conversion: Simply replace htr with hdc.
  4. Treble Crochet (US) / Double Treble Crochet (UK)

    • US: Treble Crochet (tr)
    • UK: Double Treble Crochet (dtr)
    • Conversion: Replace dtr with tr.
  5. Slip Stitch (both terms)

    • There is no change in terminology between the two systems, so you can use slip stitch (sl st) as is.

YarnCro Tools for Conversion

If you’d like a more automated way to handle conversions, consider using the Pattern Generator or Stitch Scanner to ensure your patterns are accurate. These tools can help you create custom patterns or identify stitches quickly and efficiently.

Converting Measurements

In addition to stitch conversions, you may also need to convert measurements, especially when it comes to yarn weight and hook sizes. Here’s a quick reference for these conversions:

Yarn Weight Conversion

UK Yarn WeightUS Yarn Weight
4-plyFingering / Sport
DK (Double Knit)Worsted
AranWorsted
ChunkyBulky

Hook Size Conversion

UK Hook SizeUS Hook Size
0.6mm14
3.5mmE/4
4.0mmG/6
5.0mmH/8
6.0mmJ/10
10.0mmN/P

Ensure that you have a reliable conversion chart handy when working with patterns to avoid any confusion.

Additional Tips for Converting Patterns

To make your conversion process smoother, consider the following tips:

  • Read the entire pattern first: Before you begin, familiarize yourself with the pattern's structure. This will help you identify all the UK terms that need conversion.
  • Keep a conversion chart: Having a printed or digital copy of the conversion chart can be incredibly beneficial, especially when you're working on larger projects.
  • Practice with smaller projects: Start with simpler patterns to practice your conversions. As you gain confidence, you can move on to more complex patterns.
  • Join crochet communities: Engaging with fellow crocheters can provide you with additional resources and support. Online forums and social media groups can be great places to ask questions and share experiences.

Conclusion

Converting UK to US crochet terms may seem daunting at first, but with practice and the right resources, you can master this skill. By understanding the key differences in stitch names and measurements, you’ll be well-equipped to tackle patterns from both sides of the pond. Remember, the crochet community is here to support you, so don’t hesitate to reach out for guidance or share your experiences.

Happy crocheting!

O

Oussama Elbadaoui

Founder, YarnCro · Fes, Morocco

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