Standard crochet blanket sizes
Blanket sizes are conventions, not rules, and they vary between patterns and designers. Bed blankets depend on the mattress and how far you want the blanket to hang over the sides (the drop). The chain and rows columns use an example worsted-weight gauge of 14 single crochet and 16 rows over 4 inches; your own swatch will give different counts.
| Blanket | Typical size | Range you'll see | Starting chain (sc) | Stitches across | Rows |
|---|---|---|---|---|---|
| Lovey | 14 × 14 in | 10 × 10 to 18 × 18 in | 50 | 49 | 56 |
| Stroller | 30 × 35 in | 30 × 30 to 32 × 40 in | 106 | 105 | 140 |
| Baby | 36 × 36 in | 30 × 36 to 40 × 40 in | 127 | 126 | 144 |
| Throw | 50 × 60 in | 50 × 60 to 60 × 70 in | 176 | 175 | 240 |
| Twin | 66 × 90 in | Twin mattress (38 × 75 in) plus a 12–16 in drop | 232 | 231 | 360 |
| Full | 80 × 90 in | Full mattress (54 × 75 in) plus a 12–16 in drop | 281 | 280 | 360 |
| Queen | 90 × 100 in | Queen mattress (60 × 80 in) plus a 12–16 in drop | 316 | 315 | 400 |
| King | 108 × 100 in | King mattress (76 × 80 in) plus a 12–16 in drop | 379 | 378 | 400 |
For a bed blanket made to measure, take the width of the mattress top plus twice the drop, and the length of the mattress plus the drop at the foot. Add a few inches to the length if you want to tuck it under the pillows.
How the calculator works
- Stitches across = blanket width × stitches per inch, where stitches per inch = your gauge ÷ 4 (or ÷ 3.94 for a gauge over 10 cm).
- Starting chain = stitches across + the turning chain: 1 for single crochet, 2 for half double, 3 for double crochet, 4 for treble.
- Pattern multiples: when a stitch pattern says "chain a multiple of 3 plus 2", the calculator rounds the chain to the nearest count that fits and shows the size it gives.
- Rows = blanket length × rows per inch, rounded to the nearest row.
Conventions differ on whether the turning chain counts as the first stitch. The calculator assumes it does not, so every chain after the turning chain gets one stitch. If your pattern counts it as a stitch, follow the pattern's foundation.
Example: a double crochet baby blanket
You want a 36 × 36 inch baby blanket in double crochet, and your blocked swatch gives 12 double crochet and 7 rows over 4 inches.
- Stitches per inch: 12 ÷ 4 = 3. Across 36 inches: 36 × 3 = 108 stitches.
- Add 3 chains for the double crochet turn: chain 111.
- Rows per inch: 7 ÷ 4 = 1.75. For 36 inches: 36 × 1.75 = 63 rows.
If the stitch pattern needs a chain that is a multiple of 3 plus 2, the nearest fit is a chain of 110, which gives 107 stitches and a blanket about 35.7 inches wide.
Tips for a blanket that comes out the right size
- Swatch in the blanket's stitch. Single, half double and double crochet give very different row heights, and textured stitches change the width too. Wash and dry the swatch the way you will treat the blanket.
- Measure rows after a few inches. Row gauge drifts more than stitch gauge. Measure the blanket itself once it is 6 inches long and adjust the row count.
- Plan the border first. A border adds to every side. For a 2-inch border, subtract 4 inches from the width and the length before you calculate the center.
- Mark the chain. Place a stitch marker every 25 chains so you can count a long foundation without starting over.
- Check your yarn before you start. A twin or larger blanket can take thousands of yards. Use the yarn calculator with your swatch to see how many skeins to buy from one dye lot.
Frequently asked questions
What size is a crochet baby blanket?
Most patterns land between 30 × 36 and 40 × 40 inches, and 36 × 36 inches is a common choice. A stroller blanket is smaller, around 30 × 35 inches, and a lovey is a small square of roughly 10 to 18 inches.
What size is a crochet throw blanket?
A throw is usually about 50 × 60 inches, large enough to cover one adult on a sofa. Patterns range up to about 60 × 70 inches.
How many chains do I need for a baby blanket?
It depends on your gauge. At 14 single crochet per 4 inches, a 36-inch-wide blanket needs 126 stitches across, so you chain 127 (one extra for the turn). At a looser gauge you need fewer, which is why you should measure your own swatch.
How do I work out a starting chain?
Multiply the width you want by your stitches per inch, then add the turning chain for the stitch in the first row (1 for single crochet, 2 for half double, 3 for double crochet). If the pattern asks for a multiple, such as "a multiple of 3 plus 2", round to the nearest chain count that fits.
What size crochet blanket fits a twin bed?
About 66 × 90 inches. A twin mattress is 38 × 75 inches, and the blanket adds a drop of 12 to 16 inches down each side and over the foot. Measure your bed if it has a deep mattress or you want the blanket to reach the floor.
Why is my foundation chain tighter than the rest of the blanket?
Most people chain more tightly than they work stitches, so the bottom edge pulls in. Make the chain with a hook one or two sizes larger, or use a chainless foundation such as foundation single crochet.
Last updated October 17, 2026.