Sock Size Calculator

Find your perfect sock size based on your shoe size or foot measurement. Get conversions for US, EU, and UK sizing systems for men, women, and children.

Enter your shoe size in the selected system
Your Recommended Sock Size
9-11

Complete Size Chart

What Are Socks?

Socks are an essential piece of clothing worn on the feet. They serve multiple important purposes: they absorb sweat, provide cushioning, reduce friction between your feet and shoes, and help regulate temperature. The right sock size ensures comfort and prevents issues like blisters, bunching, and restricted circulation.

How to Use This Sock Size Calculator

Finding your sock size is simple with our calculator:

  1. Select your category: Choose whether you're shopping for men's, women's, or children's socks.
  2. Choose your input method: You can either use your shoe size or measure your foot directly.
  3. Enter your measurement: Input your shoe size (in US, EU, or UK) or your foot length in centimeters or inches.
  4. Click Calculate: Get your sock size in all major sizing systems.
Foot Length Measure from heel to longest toe

Understanding Sock Sizes

Unlike shoes, sock sizes work differently across regions and can be confusing. Here's what you need to know:

US Sock Sizes

In the United States, sock sizes are based on the length of your foot in inches - not your shoe size. When you see socks labeled "Size 9-11" or "Size 10-13", these numbers represent the range of foot lengths (in inches) that the socks will fit comfortably.

Common US Sock Size Ranges:
  • Women's Standard (9-11): Fits US Women's Shoe 5-10
  • Men's Standard (10-13): Fits US Men's Shoe 8-12.5
  • Men's Large (13-15): Fits US Men's Shoe 13+

European (EU) Sock Sizes

European sock sizes are the most straightforward - they correspond directly to your EU shoe size. If you wear EU size 42 shoes, look for socks in the 42-44 range. No conversion needed!

UK Sock Sizes

UK sock sizes typically match UK shoe sizes, similar to the EU system. However, note that UK sizes run about one size smaller than US sizes.

Men's Sock Size Chart

US Shoe Size UK Shoe Size EU Shoe Size Foot Length (cm) US Sock Size
6-8 5.5-7.5 39-41 24.1-25.9 Small (9-11)
8-12.5 7.5-12 41-46 25.9-29.5 Medium (10-13)
13+ 12.5+ 47+ 29.5+ Large (13-15)

Women's Sock Size Chart

US Shoe Size UK Shoe Size EU Shoe Size Foot Length (cm) US Sock Size
4-6 2-4 35-37 21.6-23.5 Small (5-7)
6-10 4-8 37-41 23.5-26.2 Medium (9-11)
10+ 8+ 41+ 26.2+ Large (11-13)

Children's Sock Size Chart

Age Range US Shoe Size EU Shoe Size Foot Length (cm) Sock Size
0-6 months 0-2 15-18 8.9-10.8 Infant
6-12 months 2-4 18-20 10.8-12.1 Baby
1-2 years 4-7 20-23 12.1-14.6 Toddler
3-5 years 7-10 23-27 14.6-17.1 Small Child
6-8 years 10-13 27-31 17.1-19.7 Medium Child
9-12 years 13-4 (Youth) 31-36 19.7-23.5 Large Child/Youth

How to Measure Your Foot

For the most accurate sock size, measuring your foot directly is recommended:

  1. Gather supplies: You'll need a piece of paper, a pen or pencil, and a ruler or tape measure.
  2. Stand on the paper: Place your foot flat on the paper with your weight evenly distributed.
  3. Trace your foot: Carefully trace the outline of your foot, keeping the pen vertical.
  4. Measure the length: Measure from the back of your heel to the tip of your longest toe.
  5. Repeat for both feet: Feet often differ slightly in size - use the larger measurement.
  6. Add a small buffer: Add about 0.5 cm (0.2 inches) for comfort.

Tips for Choosing the Right Socks

1. Consider the Activity

Different activities require different sock types:

2. Check the Material

Common sock materials include:

3. When In Doubt, Size Up

If you're between sizes, it's generally better to choose the larger size. Socks that are too small can cause discomfort, restrict circulation, and wear out faster.

Frequently Asked Questions

What does "sock size 9-11" mean?
The numbers 9-11 refer to foot length in inches, not shoe size. This is a common source of confusion. A sock labeled "9-11" is designed to fit feet that are 9 to 11 inches long, which typically corresponds to US Women's shoe sizes 5-10 or US Men's shoe sizes 6-8.
Can women wear men's socks?
Yes! If you wear a larger women's shoe size (10+), men's socks might actually fit better. The main differences are typically in styling and width. Men's socks tend to be wider in the ankle area. Many sock brands are now offering unisex options as well.
How do I know if my socks are too small?
Signs your socks are too small include: the heel doesn't reach your heel (rides up on your ankle), your toes feel cramped or push against the seam, sock slides down during wear, you notice red marks or indentations on your feet, or your feet feel uncomfortable after wearing them for extended periods.
Do socks shrink in the wash?
Yes, especially cotton socks can shrink 5-10% after washing, particularly if dried on high heat. To minimize shrinkage: wash in cold or warm water, avoid high heat in the dryer (air dry when possible), and follow care instructions on the label. Some people intentionally buy slightly larger socks anticipating shrinkage.
Why do my socks keep falling down?
Socks that fall down are usually too big, have lost their elasticity, or are low-quality. Solutions include: trying a smaller size, choosing socks with stronger elastic bands, replacing old stretched-out socks, and considering no-show socks with silicone grip strips for low-cut styles.
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