How much yarn for a temperature blanket?

A throw-size crochet temperature blanket in worsted takes about 3,400 yards in total. How much of each colour depends on your town's weather.

Updated

Work out yarn per colour for my town

Total yarn: crochet temperature blanket

Half double or double crochet, all colours together, before extra.

Total yarn for crochet temperature blankets by size and weight
SizeDKWorstedBulky
Lovey / security
12 × 12 in
190 yd
175 m
160 yd
150 m
110 yd
100 m
Baby stroller
30 × 35 in
1,400 yd
1,250 m
1,200 yd
1,100 m
790 yd
720 m
Receiving
36 × 36 in
1,700 yd
1,550 m
1,450 yd
1,350 m
970 yd
890 m
Crib
45 × 60 in
3,550 yd
3,250 m
3,050 yd
2,800 m
2,050 yd
1,850 m
Throw / lap
50 × 60 in
3,950 yd
3,600 m
3,400 yd
3,100 m
2,250 yd
2,050 m
Twin
66 × 90 in
7,800 yd
7,150 m
6,700 yd
6,100 m
4,450 yd
4,050 m
Full / double
80 × 90 in
9,450 yd
8,650 m
8,100 yd
7,400 m
5,400 yd
4,950 m
Queen
90 × 100 in
11,800 yd
10,800 m
10,150 yd
9,250 m
6,750 yd
6,150 m
King
108 × 100 in
14,200 yd
12,950 m
12,150 yd
11,100 m
8,100 yd
7,400 m

Total yarn: knitted temperature blanket

Stockinette, all colours together, before extra. Garter stitch uses about 15% more.

Total yarn for knitted temperature blankets by size and weight
SizeDKWorstedBulky
Lovey / security
12 × 12 in
150 yd
140 m
130 yd
120 m
85 yd
80 m
Baby stroller
30 × 35 in
1,100 yd
1,000 m
950 yd
860 m
630 yd
580 m
Receiving
36 × 36 in
1,350 yd
1,250 m
1,150 yd
1,050 m
780 yd
710 m
Crib
45 × 60 in
2,850 yd
2,600 m
2,450 yd
2,200 m
1,600 yd
1,500 m
Throw / lap
50 × 60 in
3,150 yd
2,900 m
2,700 yd
2,450 m
1,800 yd
1,650 m
Twin
66 × 90 in
6,250 yd
5,700 m
5,350 yd
4,900 m
3,550 yd
3,250 m
Full / double
80 × 90 in
7,550 yd
6,900 m
6,500 yd
5,950 m
4,300 yd
3,950 m
Queen
90 × 100 in
9,450 yd
8,650 m
8,100 yd
7,400 m
5,400 yd
4,950 m
King
108 × 100 in
11,350 yd
10,350 m
9,700 yd
8,900 m
6,500 yd
5,950 m

Working out yarn per colour

Each colour gets a share of the total, in proportion to how many days fall in its temperature band. Count last year's days per band (the planner does this for you), then multiply each band's share of the year by the total.

For example, if 60 of 365 days fell in your 10–14°C band, that colour needs 60 ÷ 365 = 16% of the yarn. For a 3,400-yard throw, that's about 550 yards, or 4 skeins of 200 yards with 10% extra.

Buying tips

  • Buy one extra skein of the two or three most common colours. This year's weather won't match last year's exactly.
  • Buy the rare colours last. You may need only a few yards, so leftovers or mini skeins can do.
  • Check dye lots for the colours you'll use most, so they match all year.

Common questions

How much yarn do I need for a temperature blanket?
A throw-size (50 × 60 in) crochet temperature blanket in worsted yarn takes about 3,400 yards in total; knitted, about 2,700 yards. That is spread across all your colours.
How many skeins of each colour should I buy?
If the yarn were shared evenly across 10 colours, each would need about 340 yards of a throw. But weather isn't even: the commonest bands can take 2–3 times that and the rarest almost none. The planner counts the days for your town so you can buy the right amount of each.
How long is a temperature blanket?
One row per day gives 365 rows. At a typical 0.2 in (5 mm) per row in worsted, that is about 73 in (185 cm) long. Two-row stripes or thicker stitches make it longer; thinner yarn makes it shorter.