EU to US Shoe Size Calculator
Convert shoe sizes between EU and US systems and see the estimated foot length behind the result.
Choose a reverse conversion if you already know the US size and want an EU equivalent.
Result
--
Run the calculation to see the conversion.
| Metric | Value |
|---|---|
| Foot length | -- |
| Men's size | -- |
| Women's size | -- |
| Formula | -- |
Quick Answer
EU sizes convert to US sizes through foot length. For men's US sizes, the offset is different than for women's sizes.
How to Calculate
- Choose whether you are converting EU to US or US to EU.
- Select the chart style you want to compare against.
- Enter the shoe size you already know.
- Click Calculate to see the converted size and foot length.
Formula
Foot length (cm) = (EU size - 2) / 1.5
Foot length (in) = foot length (cm) / 2.54
US men's size = 3 x foot length (in) - 22
US women's size = 3 x foot length (in) - 21
Worked Examples
Example 1: EU 42 is about US men's 9 and US women's 10.
Example 2: US women's 8 is about EU 39.
Example 3: A brand's fit can vary, so always compare the retailer's chart too.
How to Interpret Your Results
| Output | Meaning | Action |
|---|---|---|
| Men's size | The estimated US men's equivalent. | Use it for men's shoes or unisex sizing. |
| Women's size | The estimated US women's equivalent. | Use it for women's shoes or fashion brands. |
| Foot length | The implied foot length behind the shoe size. | Helpful when comparing different brands. |
Frequently Asked Questions
Because the US size offset is different for each chart, so both values are useful for comparison.
Not always. Brand fit, width, and model shape can shift the best size.
Yes. Switch to reverse mode and enter the US size with the same chart style.
Related Calculators
References
- OmniCalculator reference page
- US men's and women's charts use different offsets from the same foot length estimate.
- Last reviewed: March 2026.