Total Yarn Needed
3,173 yd
Skeins
15
Total Cost
$89.85
Handmade granny square blankets sell for $45–$350+ depending on size
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Result
A baby blanket with 42 six-inch squares at 5 rounds each uses 21 yards per square in worsted weight. With whip stitch joining (+8%) and a 2-round border, total yarn is about 1,005 yards requiring 5 skeins.
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Result
A throw with 99 squares uses 2,079 yards for squares alone. Adding whip stitch joining and border brings the total to about 2,288 yards, requiring 11 skeins of worsted yarn.
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Result
A queen-size blanket with 340 eight-inch squares in chunky yarn is a large project. At 39 yards per square plus 12% flat join yarn and border, total yardage reaches nearly 14,000 yards requiring 103 skeins.
The amount depends on square size, number of rounds, yarn weight, and blanket dimensions. A throw-size blanket (36″×44″) with 99 six-inch squares in worsted weight uses approximately 2,400–2,800 yards including joining and border yarn. A baby blanket needs about 1,200–1,500 yards, while a queen needs 7,000–8,500 yards.
| Blanket Size | Squares (6″) | Yarn (worsted) | Skeins (~220yd) |
|---|---|---|---|
| Baby 24×28″ | 42 | ~1,350 yd | 7 |
| Throw 36×44″ | 99 | ~2,600 yd | 12 |
| Twin 52×68″ | 221 | ~6,000 yd | 28 |
| Queen 68×80″ | 340 | ~7,800 yd | 36 |
A standard throw blanket is about 36″×44″. With 6-inch squares, you need 6 across and 7 down for 42 squares. With 4-inch squares, you need 9 across and 11 down for 99 squares. Larger 8-inch squares require just 5×6 = 30 squares. The most popular choice is 6-inch squares with 5 rounds each.
| Square Size | Grid for Throw | Total Squares | Time Estimate |
|---|---|---|---|
| 4″ | 9 × 11 | 99 | 50–65 hours |
| 6″ | 6 × 7 | 42 | 25–35 hours |
| 8″ | 5 × 6 | 30 | 18–25 hours |
| 12″ | 3 × 4 | 12 | 10–15 hours |
Whip stitch is the fastest and uses the least yarn (about 8% extra). Slip stitch join creates a raised ridge and uses 10% extra yarn. Flat or mattress join is nearly invisible but uses 12% extra yarn and takes longest. For beginners, whip stitch is recommended. For a polished look, flat join is preferred.
| Method | Extra Yarn | Speed | Seam Look |
|---|---|---|---|
| Whip Stitch | +8% | Fastest | Visible |
| Slip Stitch | +10% | Moderate | Raised ridge |
| Flat/Mattress | +12% | Slowest | Nearly invisible |
| Join-As-You-Go | +5% | Moderate | Integrated |
A 6-inch, 5-round granny square takes about 25 minutes for an intermediate crocheter. A throw blanket with 99 squares takes approximately 40–50 hours total including joining and border. A baby blanket takes 15–20 hours. Plan for 1–2 hours per day over several weeks for larger projects.
| Project | Squares | Crochet Time | Total with Assembly |
|---|---|---|---|
| Baby Blanket | 42 | ~15 hours | ~20 hours |
| Throw | 99 | ~40 hours | ~50 hours |
| Twin | 221 | ~90 hours | ~115 hours |
| Queen | 340 | ~140 hours | ~175 hours |
Worsted weight (#4) is the most popular choice for granny square blankets. It works up quickly, is widely available, and creates a balanced drape. DK weight makes a lighter, drapier blanket but takes longer. Chunky weight is fastest but creates a heavier, bulkier blanket. Acrylic yarn is best for durability and machine washability.
| Yarn Weight | Yardage/Skein | Drape | Speed |
|---|---|---|---|
| DK (#3) | ~256 yd | Lighter, drapey | 15% slower |
| Worsted (#4) | ~220 yd | Balanced | Standard |
| Aran | ~186 yd | Warm, heavier | 10% faster |
| Chunky (#5) | ~136 yd | Heavy, bulky | 30% faster |
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Last Updated: Mar 16, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.