This is the best and easiest formula for knitting pattern calculations, and I’m excited to share it here!
Knitters who’ve already had a go at adjusting or customising patterns in some way will have had a taste of MSG. This little abbreviation is my way of teaching the maths needed to calculate knitting patterns, and I’m sharing it with you this fortnight.

There is a trinity of values needed for knitting pattern calculations.
You triangulate all dimensions using:
- body measurements (M),
- the stitches or rows required to match these measurements (S), and
- the gauge or tension of your knitted fabric (G).
Here’s how it goes:




That’s it!
•Pattern repeats are the only other thing to bear in mind. Repeat multiples will set conditions for calculations derived from MSG.
•Because of this, you may have to round your calculations up or down to fit in your stitch pattern.
I hope this was helpful – or, if you already know about knitting pattern calculations, that you enjoyed my way of looking at things. And if this was new to you, I hope this encourages you to think about adapting patterns or designing your own. Please share this post on socials or pin it to Pinterest so that it can help other knitters in the same boat – thank you!
Next steps
This is also a tiny snippet (5-10 minutes) of my pattern drafting module, which you can preview here.
There’s also a taster course on pattern drafting, which includes a video demonstration of knitting pattern calculations and more.

Pattern Drafting: Applied maths and the geometry of sleeves | Knitwear Design Initiation taster course
Knitwear Design Initiation | Pattern Drafting taster course
This knitwear design short course is especially recommended if you want to design sweaters, cardigans, and other types of pullover.
This taster course on pattern drafting for knitwear covers two important principles: applied maths and sleeve lift. Understanding human anatomy and how the arm moves gives you the perfect foundation for designing all styles of sleeve.
Knowing how to use mathematical formulas to calculate the stitches and rows you need for a pattern is key. Why mathematical formulas? You’ll need to use the MSG equation triangle to calculate the dimensions needed for EVERY knitting pattern you’ll design, whether for yourself or others. Take a sneak peek at MSG here if you’re more of a reader.
A mix of theory and practical makes the knitting pattern drafting taster course stand out. Be prepared to cut and stick pieces of paper together to create mini patterns or toiles!
If you enjoyed this post or know someone who would, please share it with them! I also have a weekly newsletter, Between the Seams. Sign up if you’re interested in finding out more about:
- knitwear design,
- pattern cutting,
- and clothes making in general.
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