Knitting Increase and Decrease Evenly Calculator

1. Enter your current stitch count - the number on the needle right now.
2. Choose Flat (row) or In the round, then pick how you want to tell the tool: a target count, or a number of changes with a direction.
3. Read the written instruction in the result box, for example (K6, M1) x11, (K5, M1) x3, K5, and the stitch check that confirms the maths.

What each result tells you:

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Patterns often say "increase 14 stitches evenly across the row" or "decrease evenly to 100 stitches" without telling you where each one goes. Spacing them evenly keeps the fabric smooth, stops clusters or gaps, and gives a tidy edge on sleeves, hat crowns, yokes and ribbing.

This calculator does the counting for you. It divides the row into equal knit groups, puts one increase or decrease between the groups, and writes the result as a short, repeatable instruction you can follow stitch by stitch.

The method is simple arithmetic, the same balanced-remainder spacing knitters have used by hand for years.

1. Count the groups needed from the number of changes and the work type.
2. Divide the available knit stitches by the number of groups to get the base size.
3. Give the first few groups one extra stitch so every stitch is used.
4. Write it out: the larger groups come first, each followed by M1 or k2tog, and (worked flat) a plain knit group ends the row.

Because every stitch is accounted for, the knit stitches always sum back to your starting count. See the ratios and proportions explainer for the idea behind splitting a whole into even parts.

You have 86 stitches and the pattern says increase 14 evenly across the row, worked flat.

1. 14 increases worked flat need 14 + 1 = 15 knit groups.
2. 86 / 15 = 5 with a remainder of 11, so 11 groups get 6 stitches and 4 groups get 5 stitches.
3. Put an M1 after every group except the last: (K6, M1) x11, (K5, M1) x3, K5.

In the round the join removes the final plain group. Example: 120 stitches, decrease 20 evenly in the round gives (K4, k2tog) x20, using 20 x 4 = 80 knit stitches plus 40 worked in k2tog (120 in all) and leaving 100 stitches.

Three things decide the exact sequence the tool writes.

Number of Changes

More increases or decreases mean smaller knit groups between them. Add 14 across 86 stitches and groups are 5 to 6 stitches wide; add 30 and they shrink to 2 to 3.

Flat vs in the Round

Flat work ends with a plain knit group, so it uses one more group than the round. In the round the piece joins into a circle, so the last change leads straight back to the first group.

How Evenly It Divides

When the count divides cleanly you get one group size, like (K4, k2tog) x20. When it does not, the tool gives the first groups one extra stitch, which is why many instructions have two group sizes.

The calculator assumes a plain make-one increase and a knit-two-together decrease, the most common even-shaping stitches. You can swap in your preferred stitch at each marked point.

Prefer a different increase such as kfb, or a different decrease such as ssk? Work it at the same marked points; the spacing does not change.

Sleeves and Body Shaping

Increasing or decreasing evenly across a row keeps the width change smooth instead of bunched at the edges.

Hat Crowns and Yokes

Round decreases spaced evenly give the neat spiral you see at the top of a hat or around a yoke.

Ribbing and Transitions

Many patterns add or drop a few stitches between ribbing and the main body so the stitch counts line up. This tool writes that transition row for you.

Planning more of the make? Browse the hobby calculators hub for yarn, candle and soap tools.

1. Counting Groups Instead of Changes

Worked flat, 14 increases need 15 knit groups, not 14. Forgetting the extra group pushes every increase slightly off.

2. Treating Decreases Like Increases

A k2tog uses two stitches, so decreasing 20 removes 40 stitches from the knit pool first. Spacing decreases as if each used one stitch leaves you short.

3. Mixing Up Flat and Round

Using the flat sequence in the round leaves one group too many and a lopsided join. Set the work type to match your project.

4. Rounding the Spacing Yourself

Guessing "about every 6 stitches" across the whole row usually leaves a big or tiny group at the end. The balanced-remainder split avoids that.

5. Skipping the Stitch Check

Always confirm the knit stitches plus shaping equal the row you expect. The tool shows this total so you can catch a miscount before you knit.

The arithmetic is exact: knit groups always sum back to your starting count, and the number of increases or decreases matches what you asked for. Differences from a published pattern usually come from a designer choosing a slightly different placement by hand.

Treat the example numbers here as illustrations; always use the counts from your own pattern and a test piece.

Count one more knit group than the number of increases (so 14 increases need 15 groups flat), divide your stitches between the groups as evenly as possible, and put one increase after each group except the last. This tool writes the full instruction for you.

Switch to Target count mode and enter a target below your current count. Each k2tog uses two stitches, so the tool sets those aside first, then spaces the decreases across the remaining knit stitches.

Knit 6 stitches, make one increase, and repeat that whole step 11 times. The x notation is just a shorthand for a repeat, so you do not have to write the group out over and over.

Worked flat, the row ends with a plain knit group after the last increase, so C increases need C + 1 groups. In the round the piece joins into a circle, so the last change flows back to the first group and you need only C groups.

Yes. The spacing is the same whether you use M1, kfb, ssk or k2tog. Just work your preferred stitch at each marked point in the instruction.

Stitch counts have no units, so the method is the same everywhere. Measure your gauge in inches or centimetres as you prefer, then enter the stitch counts here.

That is normal. The tool gives the first few groups one extra stitch so every stitch is used, which is why many instructions show two group sizes, such as K6 and K5.

Because each k2tog uses two stitches, you can remove at most about half your stitches in one row. If you ask for more than that, the tool warns you and suggests fewer decreases.

No. The calculation runs in your browser and nothing is sent to our servers. Anything you choose to Save stays in this browser only.

• Knitting shaping: increasing and decreasing evenly (balanced-remainder spacing) (general craft-standard method; use your own pattern counts).
• Division with remainders and even partition of a whole (the arithmetic behind the even split).
• Ratios and proportions (splitting a quantity into even parts).