Men to Women Shoe Size Conversion: Chart & Calculator

Anyone who’s ever tried to borrow a friend’s sneakers knows the struggle: the numbers just don’t match up. That’s because men’s and women’s shoe sizes follow different scales, and the difference isn’t always a clean one‑number jump. Once you learn the pattern—subtract 1.5 for US sizes, remember EU numbers stay the same—the whole system clicks into place. This guide walks you through the exact conversions, width quirks, and brand‑specific charts so you can shop across genders with confidence.

US women’s to men’s size difference: 1.5–2 sizes ·
US women’s size 9 in men’s: size 7.5 ·
US men’s size 7 in women’s: size 8.5 ·
EU men’s size 42 in women’s: EU 42 (same number) ·
Nike women’s size 9 to men’s: size 7.5

What is size 9 women’s in men’s?

US size conversion rule

• Subtract 1.5 sizes from the women’s US size. (Brooks Running)
• Flow Feet confirms a 1.5 to 2 size difference in length between genders. (Flow Feet)

Example: women’s 9 to men’s 7.5

• Women’s US 9 = Men’s US 7.5. (Shoe City)
• Nike’s own chart uses the same conversion. (Shoe City)

What size is 7 in female to male?

Men’s size 7 to women’s

• Men’s US 7 = Women’s US 8.5. (Shoe City)
• Flow Feet adds that the width difference is about a full size as well. (Flow Feet)

Women’s size 7 to men’s

• Women’s US 7 = Men’s US 5.5. (Shoe City)
• Half‑size adjustments may vary by brand; always compare with a brand‑specific chart. (Brooks Running)

Is a women’s 42 the same as a men’s 42?

EU sizing parity

• EU men’s and women’s size 42 have the same length. (Wolverine)
• Horner Shearing’s international chart also shows identical EU numbers across genders. (Horner Shearing)

Width differences between genders

• Men’s shoes are typically wider than women’s at the same EU size. (Flow Feet)
• Women’s standard B width equals men’s D width on average. (Wikipedia)
• Always check brand‑specific width charts for a proper fit. (HealthyFeetStore)

How do you convert women’s shoe size to men’s?

Step‑by‑step conversion formula

1. Identify your current size and system (US, UK, or EU).
2. For US: subtract 1.5 from women’s size to get men’s size. (Brooks Running)
3. For UK: subtract 2 from women’s size. (Shoe City)
4. For EU: use the same number. (Wolverine)
5. Adjust for half sizes: if women’s size is a half, men’s may be half or full size down. (Flow Feet)

Using a conversion chart

• Famous Footwear provides charts for US, UK, and EU sizes across men, women, and kids. (Famous Footwear)
• Grivet Outdoors offers a chart covering US, UK, EU, and inches. (Grivet Outdoors)
• Zappos bases its conversion on international measuring conventions. (Zappos)

Using an online calculator tool

• Flow Feet’s calculator applies the 1.5‑size rule instantly. (Flow Feet)
• New Balance recommends trying shoes on both feet because they may differ by as much as a full size. (New Balance)

Do Nike shoes have different conversion?

Nike men’s to women’s size chart

• Nike uses standard US sizing with a 1.5‑size difference. (Shoe City)
• Example: women’s 9 = men’s 7.5; men’s 7 = women’s 8.5. (Shoe City)

Nike women’s to men’s size chart

• The conversion is symmetric: men’s to women’s is +1.5. (Nike official size chart)
• Nike also offers unisex models with its own size scale—always refer to the official Nike size chart. (Brooks Running)

One pattern across all these conversions: the rules are consistent, but widths and half‑sizes introduce real variability. The implication: trust the formula, then test the fit.

Five common conversions, one pattern: the US women’s‑to‑men’s shift of 1.5 sizes repeats across most brands, while UK and EU systems follow their own logic.

The pattern: the 1.5‑size shift holds across the US row, while UK women’s is 2 sizes smaller than UK men’s. EU cells remain identical—the only variable is width.

Step‑by‑Step Conversion Method

1. Determine your starting size and system. Note whether you’re in US, UK, or EU sizing. (Zappos)
2. Apply the conversion rule. US: subtract 1.5 for women to men; UK: subtract 2; EU: keep the same number. (Brooks Running)
3. Adjust for half sizes. If your women’s size ends in .5, the men’s equivalent may be a half or full size lower. (Flow Feet)
4. Account for width. Women’s standard B width equals men’s D width. If you need a different width, consult a brand‑specific chart. (HealthyFeetStore)
5. Check the brand’s own chart. Brooks, New Balance, and Nike all publish size guides. (New Balance)

What’s Clear and What’s Not

The general rule is a 1.5 to 2 size difference in length and a 1 full size difference in width between men’s and women’s shoe sizes.

— Flow Feet (footwear sizing resource)

Women’s size 9 = Men’s size 7.5; Men’s size 7 = Women’s size 8.5.

— Shoe City (footwear retailer)

Women’s size 9 = Men’s size 7.5; Men’s size 7 = Women’s size 8.5.

— Nike (official size chart, as referenced by Shoe City)

For anyone shopping across gender lines, the choice is clear: master the 1.5 rule, but never skip checking the brand’s own size chart—or risk an ill‑fitting pair and a return trip. The trade‑off between convenience and perfect fit is real; invest the extra five minutes to measure both feet and consult width charts.

For those transitioning between gender-specific sizing, our guide on mens and womens shoe size conversion provides detailed charts for EU size 43 in UK equivalents.

Frequently asked questions