The number of stitches you need for a crochet blanket depends on three things: the blanket width, your yarn and hook, and your gauge (how many stitches you get per inch). This guide shows you the simple formula, common blanket sizes and a worked example, plus how it works for mosaic crochet charts.
Quick Answer
Stitches = blanket width (inches) × stitches per inch from your gauge swatch. Then add the turning chain your stitch needs (often 1 extra chain for single crochet, 2–3 for double crochet). Example: a 50" wide throw at 3.5 stitches per inch needs about 175 stitches, so you'd chain about 176 for single crochet.
Key Takeaways
- Always make a gauge swatch first; everyone's tension is different.
- Measure stitches per inch over 4" (10 cm) for accuracy.
- For patterns with repeats or charts, the stitch count must fit the repeat.
- Mosaic charts tell you the exact stitch count; your gauge decides the final size.
Common Crochet Blanket Sizes
These are typical approximate sizes. Many designers use slightly different measurements.
| Blanket | Approx. size (inches) | Approx. size (cm) |
|---|---|---|
| Lovey / security | 10–14 × 10–17 | 25–35 × 25–43 |
| Stroller / baby | 30 × 35 | 76 × 89 |
| Receiving | 40 × 40 | 102 × 102 |
| Crib | 45 × 60 | 114 × 152 |
| Throw / lap | 50 × 60 | 127 × 152 |
| Twin | 66 × 90 | 168 × 229 |
| Full / double | 80 × 90 | 203 × 229 |
| Queen | 90 × 100 | 229 × 254 |
| King | 108 × 100 | 274 × 254 |
How to Calculate Your Stitch Count: Step by Step
- Choose your yarn and hook. Use what your pattern recommends.
- Make a swatch at least 6" × 6" in the stitch you'll use.
- Count stitches across 4" in the middle of the swatch, then divide by 4 to get stitches per inch.
- Multiply by the blanket width. Width × stitches per inch = stitch count.
- Adjust for repeats. If the pattern repeats every 10 stitches (+2), round to fit, e.g. 172 or 182.
- Add the turning chain as your pattern instructs.
Worked Example
Say your single crochet swatch measures 14 stitches = 4 inches.
- Stitches per inch: 14 ÷ 4 = 3.5
- Throw width 50": 50 × 3.5 = 175 stitches
- Chain: 175 + 1 turning chain = 176 chains
- Rows: if you get 16 rows = 4", that's 4 rows per inch, so 60" long ≈ 240 rows
This is just an example gauge. Use your own swatch measurements.
How It Works with Mosaic Crochet
Mosaic patterns are charts, so the stitch and row count is fixed by the design. Your yarn, hook and tension decide the final size. For example, our Woodland Deer mosaic blanket pattern lists a grid of 208 stitches × 248 rows for a blanket of about 48" × 58" in worsted weight yarn. That works out to roughly 4.3 stitches and 4.3 rows per inch.
If you want a bigger or smaller mosaic blanket, change the yarn weight and hook (and check gauge) rather than the chart, or add a wider border. Learn more in How to Read a Mosaic Crochet Chart.
Example: Woodland Deer Mosaic Blanket
A beginner-friendly overlay mosaic pattern listed at about 48" × 58" with worsted weight yarn and a 5 mm hook.
Best for: a throw-size first mosaic blanket
Common Mistakes
- Skipping the swatch and guessing the chain length.
- Measuring a tiny swatch, which gives an inaccurate gauge.
- Chaining too tightly: the foundation edge pulls in. Use a larger hook for the chain if needed.
- Ignoring the repeat, which breaks the pattern at the edges.
FAQ
How many chains for a baby blanket?
It depends on gauge. At 3.5 sc per inch, a 30" baby blanket needs about 105 stitches plus the turning chain.
How many chains for a throw blanket?
For a 50" throw at 3.5 stitches per inch, about 175 stitches plus the turning chain.
How many rows are in a crochet blanket?
Multiply the length in inches by your rows per inch. For example, 60" × 4 rows per inch = 240 rows.
Can I make a mosaic pattern bigger?
Yes, by using thicker yarn and a bigger hook, or by adding a border. Check that you have enough yarn first.
Skip the Math with a Ready-Made Chart
Our mosaic crochet patterns give you the exact stitch and row counts. Just choose your yarn and start.
