Grade a knitting pattern with the math done right
Turn one sample size into a full size range with correct stitch counts and shaping that lands exactly where it should. Turn your gauge into a cast-on in one step. Free, and it all runs in your browser.
Get the numbers, not the guesswork
Pattern grading generator
Enter your gauge, sizes, and shaping points. Get per-size stitch counts, row counts, and evenly distributed shaping, plus a printable grade sheet.
Open the grader 02Gauge calculator
Turn a gauge swatch and a target measurement into the exact stitches to cast on and rows to knit. Instant, in centimetres or inches.
Open the calculatorWhy a tool, when a chatbot can do math?
Ask a general chatbot to grade a pattern and it will hand you confident, wrong numbers. It rounds stitch counts inconsistently across sizes, and it spaces shaping with a single "every N rows" that leaves you a stitch or two short by the top of the sleeve. Grading is fussy arithmetic where small errors compound, so it is the kind of job a purpose-built tool should own.
KnitGrader does the arithmetic the way a designer does it by hand. Stitch counts are gauge times your finished measurement, rounded to a whole stitch and to your pattern repeat. Shaping is spread with the even-interval method, so when the rows do not divide evenly you get a clean instruction like "increase 1 stitch at each end every 6 rows 5 times, then every 8 rows 3 times," and the count lands exactly on target. Every formula is checked against hand-worked examples.
At a gauge of 20 stitches per 10 cm, a finished chest of 100 cm comes to 200 stitches. A sleeve that grows from 44 to 60 stitches over 80 rows works out to an increase every 10 rows, eight times. The grader does this for every size at once.
Method: standard hand-knitting grading, gauge times measurement with even shaping distribution.Learn the math behind the fit
How to grade a knitting pattern
Grading turns one knitted sample into a full size range. You keep the same gauge and proportions, then recompute the stitch cou...
Read the guide 02How to measure knitting gauge
Gauge is the number of stitches and rows over a set width and height, usually 10 cm or 4 in, worked in your pattern stitch and...
Read the guide 03Gauge swatch mistakes that ruin the fit
Most fit problems trace back to the swatch, not the knitting. A swatch that is too small, never blocked, or measured at the cur...
Read the guide 04Ease and sizing basics
Ease is the gap between your body measurement and the finished garment. It is the single number that decides whether a sweater...
Read the guideFrequently asked questions
What is pattern grading?
Grading turns one knitted sample size into a full size range. It recomputes the stitch counts, row counts, and shaping for each size while keeping the same gauge and proportions, so every size fits the way the sample does.
Are these tools really free?
Yes. The pattern grading generator and the gauge calculator are free, run entirely in your browser, and need no sign-up. You can download a printable grade sheet PDF at no cost.
Is the grading math correct?
Yes. Stitch counts are gauge times the finished measurement rounded to a whole stitch, and shaping is distributed evenly so the count lands exactly on target. Every formula is checked against hand-worked examples, which is the part a generic chatbot gets wrong.
Do I need an account?
No account, no email, nothing to install. Open a tool, enter your numbers, and read the result. Your inputs stay in your browser.