Crochet Advice: Fix Tension, Count Stitches, Finish Clean
By the end you will know how to check your gauge, count a row, and finish an edge that does not curl.
Most crochet problems come down to two things: your gauge is off by half an inch, or you lost a stitch three rows back.
A 4 inch square of single crochet is the whole game. If your square is 4.5 inches, a 40 inch blanket turns into 45 inches and you run out of yarn.
So here is the order that saves time: swatch, count, then build. Everything below fits that order.
Crochet advice that actually helps is boring and specific. Measure a 4 inch swatch before you start, count your stitches at the end of every row, and weave in ends with a yarn needle instead of a hook. That covers most of what goes wrong.

What you need
Yarn
Match the weight on the label to the pattern. One 200 g ball of worsted makes roughly a 12 inch square.
Crochet hook
Start with the size on the yarn label, then adjust for gauge. Aluminum hooks slide faster, bamboo grips more.
Stitch markers
You need at least four. Paper clips work fine instead.
Tape measure
A rigid ruler is easier for gauge than a soft tape.
Yarn needle
A blunt tip with an eye wide enough for worsted. Used for weaving in ends.
Check your gauge before the first real row
Work a 6 by 6 inch swatch in the stitch your pattern uses. Measure the middle 4 inches, not the edges, because edge stitches lean.
If you get 18 stitches where the pattern wants 16, go up one hook size. If you get 14, go down one. Yarn weight matters here: worsted usually wants a 5.0 mm to 5.5 mm hook, DK wants 4.0 mm.
- Worsted weight: 5.0 mm to 5.5 mm hook
- DK weight: 4.0 mm hook
- Sport weight: 3.5 mm hook
- Always measure the middle, never the edge
Wash and dry the swatch the way you will wash the finished piece. Cotton can shrink a full half inch over 4 inches.
Count stitches at the end of every row
Chain one at the start of a single crochet row, chain two for half double, chain three for double. That turning chain counts as your first stitch in most patterns, and forgetting it is the number one reason rows shrink.
Mark the first and last stitch of a row with a stitch marker. Then count. A 30 stitch row that reads 28 means you dropped two, and you will see it now instead of ten rows later.
If your row count is wrong, pull back to the last correct row. Fixing two rows takes four minutes. Fixing ten takes an hour.
Fix the three mistakes you will actually make
Extra stitch at the end. You worked into the turning chain and then into the same space again. Undo one stitch and move the marker.
Curling edges. Your tension is tight and your foundation chain is tighter than your rows. Go up one hook size for the chain only, or start with a foundation single crochet instead.
Holes between stitches. You are working into the gap instead of under both loops. Slide the hook under the two top loops, not beside them.
- Extra stitch at row end: check the turning chain
- Curling: loosen the foundation chain
- Gaps: work under both loops
Tight tension in the first row usually means you are gripping the hook hard. Drop the hook, shake out your hand, start again.
Join a new ball without a lump
Leave 6 inch tails on both the old and new yarn. Work three stitches with both strands held together, then drop the old one.
Weave each tail in two directions with a yarn needle, not a hook. A hook leaves a ridge you can feel through the fabric.
For cotton, split the tail and weave each ply separately. It holds better than a knot and never pops.
Finish the edge so it lies flat
Work one round of single crochet around the whole piece, with three single crochet in each corner. That gives the border something to sit on.
Then work your border. A crab stitch or reverse single crochet gives a firm edge that does not roll, and it takes about ten minutes for a scarf.
Block acrylic with steam, not a hot iron. Hold the iron two inches above the fabric and let the steam do the work.
Step
Swatch first
Work a 6 inch square in your stitch. Measure the middle 4 inches. If it is off by more than a quarter inch, change hook size.
Mark your first stitch
Place a marker in the first stitch of every row. That single habit prevents most dropped stitches.
Count each row
Count before you turn. If the number is wrong, undo to the last correct row right then.
Join new yarn
Overlap 6 inch tails for three stitches, then weave both tails in two directions with a needle.
Edge and block
Work one round of single crochet with three stitches in each corner, then steam block acrylic or wet block wool.
Ways to change it
Change the yarn weight
Go from worsted to DK and the same pattern comes out about 20 percent smaller. Good for a baby size.
Use a bigger hook
One size up gives a looser, drapier fabric. Better for shawls than for bags.
Swap the border
Crab stitch for a firm edge, picot for something decorative, or leave it plain for a modern look.
Work in the back loop only
You get ridges across the fabric. Nice for washcloths and ribbed hats.
Make it in cotton
Less stretch than acrylic, so it holds shape for dishcloths and market bags.
Add a color change every two rows
Stripes hide small tension differences better than one solid color.
The short version
- A 4 inch gauge swatch tells you more than any other habit.
- The turning chain counts as a stitch in most patterns, and forgetting it shrinks your rows.
- Mark the first stitch of every row or you will lose one within five rows.
- Weave ends with a needle in two directions, never with a knot.
- Steam acrylic, wet block wool, and never press acrylic with a hot iron.
- Three single crochet in each corner keeps a border from pulling.
Questions people ask
Why does my crochet curl at the edges?
Your foundation chain is tighter than your rows. Chain with a hook one size larger, or use a foundation single crochet instead of a chain.
How do I stop losing stitches at the end of a row?
Put a stitch marker in the first and last stitch of each row. Count before you turn, and fix it while the mistake is still one row back.
Do I really need to make a gauge swatch?
For anything that has to fit, yes. For a dishcloth, skip it. For a sweater or hat, a half inch of gauge error becomes two inches across the chest.
What hook size should a beginner use?
A 5.0 mm hook with worsted weight yarn. The stitches are big enough to see, and the yarn does not split easily.
How do I weave in ends so they do not come out?
Thread the tail on a yarn needle and pass it through the fabric in one direction, then back the other way. Change direction once and it locks itself.
Pick one habit and use it on your next row
Start with the stitch marker. It costs nothing and it fixes the mistake that wastes the most time. Then swatch before your next wearable, and your crochet advice stops being guesswork.
