How to Crochet a Tension Swatch

Learn how to crochet a tension square, how to measure a tension swatch and the simple ways to adjust your tension. By creating a gauge swatch before starting a crochet pattern, you can prevent hours of wasted crochet time and feel confident that your finished project will fit!

How to crochet a tension square | Learn How To Crochet

If you’re one of those who skips making a tension square before beginning your crochet project, you’ll learn why it’s simply so important to create one!

Tension and Gauge can be scary words when learning how to crochet. In fact, I know many crocheters who just wing it when it comes to checking their tension and by not checking their tension end up very disappointed when their project is finished and is not the size expected.

A tension square will allow you to gauge your stitches and adjust it to will prevent you spending hours making a garment or accessory only to find that it doesn’t fit when its finished.

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What is Gauge?

The gauge is simply the number of stitches and rows you create within a 10cm/4 inch square.

The pattern will tell you the stitch to use to create your gauge swatch and the recommended hook size to create the crochet pattern:

e.g. 10.5 stitches and 7 rows = 4in (10cm) over HTr (HDc) using 8mm crochet hook.

If you were using a different yarn or wool to complete your project, creating a tension square is the best way to check your selected yarn will work with the pattern.

Video Tutorial:

To follow along with the video tutorial further down this page, you’ll need the following materials:

8mm crochet hook

Chunky/bulky yarn
Knitters Square or ruler (these options are a much better choice than a measuring tape as they can become stretched over time)

Crochet A Tension Square

The crochet pattern will usually give you instructions on the stitch and hook size to be used to crochet a tension square.

Using the recommended hook size and the yarn you will be completing your project in, chain longer than 4 inches and with enough chains to complete the pattern repeat (if stated in the pattern).

Your square will need to be a square slightly bigger than 10cm/4 inches in size to allow you to measure within the square (and not have to deal with curled up edges).

Measuring a Tension Square

If your project will require blocking once it is finished, you will need to block your tension square before measuring.

Set Up For Success

On a level surface (your lap is not a good option!):

Pin your square in place to prevent it moving around while you measure.
Line up your Knitters Square or place ruler along a row.
Count the number of rows within the square 4 inches/10cm – make a note of this number.