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Yarn Yardage & Skein Calculator

Determine the exact number of yards, meters, and skeins required for your crochet or knitting project. Simply select your blanket size and yarn weight category below.

Cozy knitted wool blanket texture and yarn skeins
Crafted for Knitters & Crocheters 100% Free Tool

Project Dimensions

Select a standard project size preset below, or type custom width and length in inches.

11 Sizes Available ↓

💡 Click or tap the menu above to choose from 11 standard blanket, scarf, or sweater sizes.

in
in

yds
Look on the yarn skein label (usually 180-250 yds)
%
Recommended 10% safety buffer for loose stitches
Calculation Summary
Total Yardage Required
0 yards
(0 meters)
Skeins / Balls to Purchase
0 skeins (at 200 yds/skein)
Total Surface Area 0 sq ft
Included Safety Margin 0 yards
Project Preview 50" x 60"

Vector item preview updates dynamically based on your project category selection.

Understanding Blanket Yardage Calculations

Running out of yarn when you are 90% finished with a blanket is one of the most frustrating experiences in fiber crafts. Finding another skein with the exact same dye-lot number can be nearly impossible. This calculator solves that problem by applying tested Craft Yarn Council (CYC) surface area formulas to estimate your exact material needs before you purchase your yarn.

Yardage Factors by Yarn Weight Class

CYC Category Yarn Name Yardage Factor (yd / sq in) Recommended Hook / Needle
#1 Super Fine Fingering / Sock 0.75 yd / sq in 2.25mm - 3.5mm
#2 Fine Sport / Baby 0.70 yd / sq in 3.5mm - 4.5mm
#3 Light DK / Light Worsted 0.65 yd / sq in 4.5mm - 5.5mm
#4 Medium Worsted / Aran 0.55 yd / sq in 5.5mm - 6.5mm
#5 Bulky Chunky / Craft 0.40 yd / sq in 6.5mm - 9.0mm
#6 Super Bulky Roving / Arm Knit 0.32 yd / sq in 9.0mm - 16.0mm

Frequently Asked Questions

How do I calculate how much yarn I need for a blanket?

To calculate total blanket yardage, multiply your blanket length in inches by width in inches to get the square inches. Then multiply square inches by the yarn weight factor (0.55 for Worsted #4 weight, 0.40 for Bulky #5 weight) and add a 10% safety margin for tension variations.

How many skeins of yarn do I need for a standard throw blanket?

A standard 50 x 60 inch throw blanket made with Medium Worsted (#4) weight yarn requires approximately 1,800 total yards. If your yarn skeins contain 200 yards each, you will need 9 skeins of yarn.

Why should I add a 10% wastage margin to my yardage calculation?

Every crafter has a unique stitch tension. Loose stitches consume up to 15% more yarn than tight stitches. Adding a 10% safety margin ensures you will not run out of yarn mid-project or face dye-lot mismatch issues when buying additional skeins.

How much yarn is needed for a baby blanket?

A standard 30 x 36 inch baby stroller blanket requires approximately 700 to 900 yards of Sport (#2) or DK (#3) weight yarn, which equals about 4 to 5 skeins of 200-yard yarn.