Crochet Decrease Calculator
Taper hats, sleeves, and amigurumi smoothly — get even "dec every N sts" spacing for any stitch count.
How the decrease calculator works
- Find the total decreases. Total = current count − target count. Going from 60 to 30 stitches means 30 decreases.
- Divide across rounds. Per round = total ÷ shaping rounds, with any remainder spread over the first rounds. Example: 60 → 30 over 5 rounds = 6 decreases per round.
- Convert to spacing. Spacing = current count ÷ total decreases, rounded down. With 60 stitches and 30 decreases that is "dec every 2 sts" — work 1 stitch, then decrease, all the way around.
Decrease calculator FAQ
How do I decrease stitches evenly in a crochet round?
Subtract the target count from your current count to get total decreases, divide by the number of shaping rounds, then space the decreases within each round. The tool reports it as "dec 1 every N sts" — work N minus 1 stitches, then a decrease, and repeat around.
What does "dec every 8 sts" actually mean?
It means: work 7 stitches, work 1 decrease, and repeat. Each group of 8 stitches becomes 7, which is why the round shrinks by one stitch per group.
Why does the spacing differ between rounds?
Each shaping round starts from a smaller count, so the same number of decreases lands on fewer stitches and the gap tightens. The tool shows the spacing for the widest round — later rounds are slightly tighter.
Can I use this for tapering sleeves and amigurumi?
Yes. Any even taper works: enter where you are, where the pattern wants you to end up, and how many rounds you have to get there. For amigurumi legs and arms the rounds value is often 1, which gives a single "dec every N sts" round.