Estimate how long a crochet project will take, in total hours and in days at your usual pace, from its stitch count and your stitching speed.
e.g. 160 sts wide × 150 rows = 24,000 total stitches
Equals 1,200 active crafting minutes
Crocheting 1.5 hours each day
If you start your project today!
At your current 20 sts/min pace

Your speed is the key number, and it varies a lot between people and stitches. To measure it:
Taller stitches take longer each but cover more ground, and textured stitches like bobbles and puffs are much slower. Measure the stitch you'll actually use, after a few rows of warming up.
A blanket with 24,000 stitches, crocheted at 20 stitches per minute, for 1.5 hours a day:
The estimate covers crocheting time only. Add time for swatching, weaving in ends, joining, blocking and borders, which can easily add 10–20% on a big project.
Total minutes = total stitches ÷ stitches per minute. Total hours = minutes ÷ 60. Days = total hours ÷ hours per day, rounded up.
It depends on size, stitch and speed. A worsted throw might have 20,000–30,000 stitches; at 20 stitches per minute, that's roughly 17–25 hours of crocheting.

How to work out what a crochet item really costs you, set an hourly rate, add profit, handle wholesale and Etsy fees, and price for fairs and custom orders, with a full worked example.
Read guide
A full yardage chart for every blanket size, what changes the numbers, and three ways to estimate, including a swatch method that's accurate to within a few percent.
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Standard blanket dimensions (Baby to King), estimated rows, stitches, and yardage requirements.
Price handmade crochet items fairly for retail, wholesale, craft fairs, and Etsy shops.