If you’ve ever stared at a size chart from an Italian supplier or a customer return from Germany, you’ve likely asked yourself: what is a 38 shoe size in the context of global commerce? The short answer is that a European size 38 typically corresponds to a US women’s size 7.5 to 8, a UK size 5, and a foot length of approximately 24.0 to 24.5 centimeters. But for cross-border sellers, the real value lies in understanding the nuances—fit variations, regional sizing quirks, and how to market this size to reduce returns and increase conversions. This article will decode everything you need to know about size 38, from conversion tables to practical listing strategies.
Why Understanding “What is a 38 Shoe Size” Matters for E-Commerce Success
For online store owners, size confusion is a primary driver of returns—costing the industry billions annually. When you fully grasp what is a 38 shoe size across different markets, you can:
- Reduce return rates by providing accurate, localized size guides.
- Boost customer trust with transparent measurement details.
- Optimize product listings for international keywords like “EU 38 shoe size” or “size 38 in US.”
- Target high-demand demographics (size 38 is the most common women’s size in Europe and Asia).
Let’s dive into the specifics that every seller should know.
The Core Conversion: What is a 38 Shoe Size in US, UK, and CM?
Before we explore strategies, here’s the baseline data. Use this as your quick-reference anchor:
- EU Size 38 → US Women’s 7.5 (some brands run 7 or 8; always measure).
- EU Size 38 → UK Women’s 5 (consistent across most brands).
- EU Size 38 → Foot Length: 24.0 cm (narrow fit) to 24.5 cm (standard/wide).
- EU Size 38 → US Men’s 6 (rare, but relevant for unisex styles).
- EU Size 38 → Japanese Size 24.0–24.5 (CM-based).
Pro Tip: Always include the centimeter measurement on your product pages. Many international customers trust CM more than arbitrary numbers.
Why Size 38 is a Global “Sweet Spot”
Statistically, size 38 (EU) is the most commonly returned size in cross-border transactions—not because it’s flawed, but because conversion errors are frequent. For example:
- A seller listing “EU 38” as “US 8” on Amazon might receive returns from customers who actually wear US 7.5.
- An Asian supplier’s “38” (24.0 cm) may feel tight to a European customer expecting 24.5 cm.
To avoid this, implement a “fit verification” step: use a tool like SizeCharter or manually test your sample pairs against industry standards.
How to List a Size 38 Shoe for Maximum Global Conversions
1. Use Multi-System Size Charts
Don’t just say “EU 38.” Show US, UK, CM, and optionally JP/CN. Here’s an example for product pages:
“Our EU 38 fits: US Women’s 7.5 | UK 5 | Foot Length 24.3 cm. If you’re between sizes, we recommend the larger option for a comfortable fit.”
Why it works: This reduces ambiguity. A customer searching “what is a 38 shoe size” will instantly see their system.
2. Highlight the Centimeter Measurement
In Japan, Korea, and parts of China, size is expressed in centimeters (e.g., 24.0). For EU 38, the common range is 24.0–24.5 cm. Always state: “Insole length: 24.5 cm. Fits foot length 24.0–24.3 cm.”
SEO Tip: Include phrases like “foot length for size 38” and “EU 38 in cm” in your ALT tags and meta descriptions.
3. Address Gender Confusion
What is a 38 shoe size for men vs. women? In European sizing, 38 is primarily women’s. Men’s EU 38 is rare (equivalent to US men’s 6). If you sell unisex shoes, specify using gender-neutral language:
- Women’s: EU 38 = US 7.5
- Men’s: EU 38 = US 6 (note: this is a very small men’s size, so clarify with photos or videos)
Failure to do this can lead to “not as described” disputes on Shopify or Amazon.
4. Create Size-Specific Landing Pages
If you specialize in women’s footwear, create a blog or page titled “Size 38 Shoe Guide: What is a 38 Shoe Size?” with internal links to your product collection. This captures search traffic from customers actively trying to understand conversions before buying.
Regional Nuances: Do All “Size 38” Shoes Fit the Same?
Absolutely not. This is where your expertise as a seller makes the difference. Here are critical variations:
European vs. Asian Sizing
European brands (e.g., Clarks, Ecco) often follow ISO standards: EU 38 = 24.0 cm foot length. However, Asian brands (e.g., from China or Vietnam) may label a shoe “38” with an insole length of 23.5 cm. Always measure the insole of your actual product, especially if sourcing from suppliers in Asia.
Actionable Check: Order a sample in size 38, measure the insole (from heel to toe), and compare it to the CM value you list. This simple step can halve your return rate.
Italian vs. French Fit
Italian shoes (e.g., Gucci, Prada) tend to run narrow. A size 38 in an Italian brand may feel tight for a customer with a medium-to-wide foot who usually wears US 7.5. French brands (e.g., Mephisto) are often roomier. List this as a selling point:
“Our size 38 fits true to Italian standards—ideal for slim to medium feet. If you have wider feet, order size 39.”
The “Half Size” Problem
EU 38 has no official half size, but many US customers expect a “7.5.” In practice:
- Some brands treat EU 38 as US 8 (like Nike).
- Others treat it as US 7 (like some luxury brands).
Solution: In your size guide, add a note: “If you wear US 8, consider size 39. If you wear US 7, size 38 is your fit.” This clarifies the gray zone.
SEO Strategies for “What is a 38 Shoe Size” and Related Keywords
To rank for this query, your content must answer not just the conversion, but the why behind it. Here’s how to optimize:
Primary Keywords to Target
- “what is a 38 shoe size” (exact match)
- “EU 38 shoe size in US” (long-tail)
- “size 38 conversion chart” (informational)
- “foot length for size 38” (measurement-focused)
- “38 shoe size women’s” (gender-specific)
Include a Conversion Table (HTML or Image)
Google loves structured data. Use a table in your article:
<table border="1" cell