Socks Size Calculator
Calculate sock dimensions and stitch counts from your foot measurements for knitting or crocheting custom-fit socks.
Socks Size Calculator
Calculate sock dimensions and stitch counts from foot measurements
Your Gauge (stitches per inch)
Formula
Cast On = Foot Circumference × Gauge × (1 - Negative Ease)Socks typically have 10% negative ease for a snug fit
How to Use
- 1Measure your foot — Measure foot length (heel to toe) and circumference around the ball of your foot.
- 2Enter measurements — Input your foot measurements in inches or centimeters.
- 3Add gauge information — Enter your knitting gauge (stitches and rows per inch) from a swatch.
- 4Select yarn weight — Choose your yarn weight for accurate yardage estimates.
- 5Get your pattern numbers — View cast-on stitches, heel stitches, and other key measurements.
Frequently Asked Questions
How do I measure my foot for socks?
Measure foot length from heel to longest toe while standing. For circumference, wrap a tape measure around the widest part of your foot (ball of foot).
What is negative ease in socks?
Negative ease means the sock is slightly smaller than your foot measurement. This ensures a snug fit since knit fabric stretches. Typically 10% negative ease is used.
Why is gauge important for socks?
Gauge determines how many stitches you need. Even small gauge differences can result in socks that are too tight or too loose. Always knit a gauge swatch first.
What yarn weight is best for socks?
Fingering weight (sock yarn) is most common for durable, comfortable socks. Sport and DK weight work for thicker, warmer socks but may not fit in all shoes.
How much yarn do I need for a pair of socks?
A typical adult sock pair needs 350-450 yards of fingering weight yarn. Longer legs or larger sizes need more. The calculator provides an estimate based on your measurements.