Increase & decrease calculator
Enter your stitch counts. Get a balanced plan for one row or round.
Your result, explained
Enter your details and use the button. We’ll show the answer and how it was worked out.
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A count you can check
For a round, to go from 48 to 60 using single crochet, work (3 sc, inc) × 12. Each group uses 4 existing stitches and makes 5: 12 × 4 = 48 used; 12 × 5 = 60 made.
To go from 60 to 48, work (3 sc, sc2tog) × 12. Each group uses 5 existing stitches and makes 4.
If the change does not divide evenly, normal-stitch gaps differ by at most one. The placement list always refers to the original row’s stitches. In flat-row mode the two ends are included in the spacing; follow your pattern if it requires protected edge stitches.
What this can and cannot decide
Can I more than double or halve a row?
Not with the operations supported here. A 2-in-1 increase uses one stitch and makes two; a 2-together decrease uses two and makes one. Use additional rows or another design method for changes outside this range.
Will the result lie flat?
These totals do not establish flatness. The appropriate shaping depends on the stitch, yarn, tension and design. Make a swatch to check how the fabric behaves.
Where are the turning chain and join?
They are intentionally excluded from this count plan. Follow your pattern’s convention, especially if a starting chain counts as a stitch.
Another little helper
Starting chains
Find a starting chain that fits the repeat in your pattern.
For rules like “multiples of 6 + 2”Calculate my chains →US ↔ UK terms
Change the stitch names in your pattern. Keep your original text alongside.
US single crochet = UK double crochetConvert my pattern →Making a sample? Keep your crochet test notes with the exact pattern version, yarn, hook and what happened. Your notes stay on your device.