Free crochet calculator
How many granny squares for a blanket?
Enter the blanket's size, or pick a typical one, and your motif as measured after blocking. You get the squares across and along, what the blanket comes to, and the yarn.
Measured after blocking.
Between two motifs. 0 when you join as you go.
Your own estimate.
10 × 12 motifs
120 motifs in all
Finished: about 128 × about 152 cm (+3 and +2 cm).
Buy 49 skeins
about 2,195–2,426 g · about 5,486–6,064 m
Joining and border ±5 %.
The motifs are measured by hand, so the finished size is an estimate.
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How to work it out yourself
Example: a blanket of 125 × 150 cm from 12 cm granny squares joined as you go, with a 4 cm border all round. One square weighs 18 g, the border about 150 g, and the yarn comes in 50 g skeins.
- Across, the border takes 2 × 4 cm, leaving 117 cm for squares: 117 ÷ 12 = 9.75.
- 9 squares make 116 cm (−9 cm), 10 make 128 cm (+3 cm). The nearest is 10 across.
- Along, the same way: 142 ÷ 12 = 11.83, so 140 or 152 cm, and the nearest is 12 along. That is 10 × 12 = 120 squares.
- Yarn: 120 × 18 g + 150 g = 2,310 g, ±5 % = 2,194.5 to 2,425.5 g. 2,425.5 ÷ 50 = 48.51, so 49 skeins.
10 × 12 motifs 120 motifs in all Finished: about 128 × about 152 cm (+3 and +2 cm). Buy 49 skeins about 2,195–2,426 g
"At least" picks the smallest count that reaches the size, "at most" the largest that stays within it. With a join between squares, add it once less than the squares: size = squares × motif + (squares − 1) × join + 2 × border.
Questions
- What size is a baby blanket or a throw?
- There is no standard, and the sources disagree. The typical sizes in the calculator are our own rounded figures, such as 80 × 100 cm for a baby blanket and 130 × 160 cm for a sofa throw. They only fill in the fields, which you can change.
- Should I measure the square before or after blocking?
- After. A blocked square is usually a little larger than one straight off the hook, and it is the blocked size that ends up in the blanket.
- What do nearest, at least and at most mean?
- Nearest picks the count that comes closest to the size, the larger one on a tie. At least picks the smallest count that reaches the size, at most the largest that stays within it.
- Why does the finished size say about?
- Because your squares are measured by hand and vary a little. The counts of squares are exact; the size they make is an estimate.