What is tension (gauge) in knitting and crochet? A complete guide for beginners!
If you have ever followed a knitting or crochet pattern, you have surely come across an indication similar to this:
"10 x 10 cm = 20 stitches x 28 rows"
This information refers to tension, also known as gauge, and it is one of the most important elements to ensure that the final result of your project is exactly the intended size.

What is tension (gauge)?
Tension corresponds to the number of stitches and rows you can achieve in a given area, usually a 10 x 10 cm square, using a specific yarn and needle.
Each person works differently:
- Some make their stitches tighter.
- Others work more loosely.
- Even the way you hold the yarn influences the result.
Therefore, even using the same yarn and the same pattern, two people can obtain very different final sizes.
What about Amigurumis?
In amigurumis, tension also plays an important role.
Tighter tension helps prevent the stuffing from showing through the stitches and contributes to a more uniform finish. For this reason, many patterns recommend using a needle slightly smaller than the one suggested on the yarn label.
Although a few millimeters of difference rarely drastically alter the outcome, tension influences the final size of the piece and the amount of yarn needed.
How to make a gauge swatch?
The simplest way is to create a small swatch before starting the project.
For knitting:
- Cast on a few more stitches than indicated in the pattern.
- Work a few rows.
- Measure a 10 x 10 cm area in the center of the swatch.
- Count how many stitches and rows are in that area.
For crochet:
- Make a square approximately 15 x 15 cm.
- Measure the central area.
- Count the stitches and rows within the 10 x 10 cm.
It is important to always measure the central part of the swatch, avoiding the edges, which tend to distort the results.
To make this task simpler and more accurate, you can use a needle gauge and tension ruler, a practical tool that helps quickly measure 10 x 10 cm areas and count stitches and rows with greater accuracy. Additionally, it allows you to identify the size of your knitting or crochet needles, even when the numbering is no longer visible.

What to do if the gauge doesn't match?
If you have more stitches than indicated in the pattern, it means you are working too tightly. In this case, try a larger needle.
If you have fewer stitches, you are working too loosely. The solution usually involves using a smaller needle.
Make a new swatch until you can get close to the indicated values.
Is it always worth making a swatch?
For simple projects, such as blankets or scarves, many people choose not to make a swatch, as small size differences are usually not problematic.
However, for garments or projects where measurements are important, dedicating a few minutes to the swatch can prevent hours of wasted work and ensure a much more satisfactory result.

Conclusion
Tension (gauge) may seem like a technical detail, but it is one of the foundations for the success of any knitting or crochet project. Knowing your own working style and checking your gauge before starting helps you achieve pieces with the correct size, a better finish, and a much more relaxed experience.
The next time you encounter the word "gauge" or "tension" in a pattern, you'll know: it's not just a recommendation, it's one of the keys to turning a good pattern into a perfect project.
