Crocs Size Guide
Welcome to the Crocs sizing guide. Crocs are renowned for their distinctive clog design, made from proprietary Croslite™ foam that provides comfort and durability. Whether you're looking for the iconic Classic Clog or one of Crocs' many versatile styles, understanding their unique sizing system will help you find the perfect fit. This guide covers sizing for women's, men's, unisex, and children's Crocs, with comprehensive UK, US, and EU conversions.
About Crocs & Sizing Philosophy
Crocs specialises in comfortable, lightweight foam footwear designed for casual wear, workplace environments, and medical professionals. The brand is committed to providing a relaxed, spacious fit that allows for air circulation and all-day comfort. Most Crocs styles are generously proportioned, particularly the Classic Clog range, which features a "Roomy" fit. However, Crocs now offer three distinct fit options — Standard, Relaxed, and Roomy — to suit different preferences and foot shapes.
It's important to note that sizes printed on the sole of Crocs shoes are always in US sizing, regardless of where you purchase them. When shopping on the Crocs UK website, sizes are displayed in UK and EU, but the actual shoe will carry the US size marking. This guide helps you navigate these conversions with ease.
How to Measure Your Feet
For the most accurate Crocs fit, follow these simple measurement steps:
- Gather your materials: You'll need a ruler or measuring tape, a pen, and a piece of paper. Wear the type of socks you normally wear with Crocs.
- Prepare your feet: Stand on the paper with your weight evenly distributed. It's best to measure your feet in the afternoon when they're slightly swollen from daily activity, as feet can expand throughout the day.
- Trace your foot: Use a pen held vertically against the paper to mark the furthest point of your heel and the tip of your longest toe. Ensure the pen remains perpendicular to the paper for accuracy.
- Measure the length: Measure the distance from the heel mark to the toe mark in centimetres. This is your foot length.
- Record the measurement: Compare your foot length measurement against the Crocs size chart below. Pay particular attention to your foot length in centimetres, as this is the most reliable measurement for footwear.
- Consider the fit style: Crocs come in different fit styles (Standard, Relaxed, and Roomy). If you have wider feet or prefer a more spacious fit, consider sizing up or choosing a "Roomy" style. Conversely, if you have narrower feet, a "Standard" fit may be more appropriate.
- Check both feet: Measure both feet, as they may be slightly different sizes. Use the measurement of your larger foot when selecting a size.
Women's Crocs Size Chart
| UK Size | US Size | EU Size | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 2 | W4 | 33–34 | 21.2 | 8 3/8 |
| 3 | W5 | 34–35 | 22.1 | 8 5/8 |
| 4 | W6 | 36–37 | 22.9 | 9 |
| 5 | W7 | 37–38 | 23.8 | 9 3/8 |
| 6 | W8 | 38–39 | 24.6 | 9 5/8 |
| 7 | W9 | 39–40 | 25.5 | 10 |
| 8 | W10 | 41–42 | 26.3 | 10 3/8 |
| 9 | W11 | 42–43 | 27.2 | 10 5/8 |
Men's Crocs Size Chart
| UK Size | US Size | EU Size | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 3 | M4 | 36–37 | 22.1 | 8 5/8 |
| 4 | M5 | 37–38 | 22.9 | 9 |
| 5 | M6 | 38–39 | 23.8 | 9 3/8 |
| 6 | M7 | 39–40 | 24.6 | 9 5/8 |
| 7 | M8 | 41–42 | 25.5 | 10 |
| 8 | M9 | 42–43 | 26.3 | 10 3/8 |
| 9 | M10 | 43–44 | 27.2 | 10 7/8 |
| 10 | M11 | 45–46 | 28.0 | 11 |
| 11 | M12 | 46–47 | 28.8 | 11 3/8 |
| 12 | M13 | 48–49 | 29.7 | 11 5/8 |
| 13 | M14 | 49–50 | 30.5 | 12 |
| 14 | M15 | 50–51 | 31.4 | 12 3/8 |
| 15 | M16 | 51–52 | 32.3 | 12 5/8 |
| 16 | M17 | 52–53 | 33.1 | 13 |
Unisex Crocs Size Chart
Unisex Crocs styles are sized using both men's (M) and women's (W) designations. The chart below shows the equivalent sizes across the sizing systems:
| UK Size | US Size (M/W) | EU Size | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 3–4 | M4 / W6 | 36–37 | 22.1 | 8 5/8 |
| 4–5 | M5 / W7 | 37–38 | 22.9 | 9 |
| 5–6 | M6 / W8 | 38–39 | 23.8 | 9 3/8 |
| 6–7 | M7 / W9 | 39–40 | 24.6 | 9 5/8 |
| 7–8 | M8 / W10 | 41–42 | 25.5 | 10 |
| 8–9 | M9 / W11 | 42–43 | 26.3 | 10 3/8 |
| 9–10 | M10 / W12 | 43–44 | 27.2 | 10 7/8 |
| 10–11 | M11 | 45–46 | 28.0 | 11 |
| 11–12 | M12 | 46–47 | 28.8 | 11 3/8 |
| 12 | M13 | 48–49 | 29.7 | 11 5/8 |
| 13 | M14 | 49–50 | 30.5 | 12 |
| 14 | M15 | 50–51 | 31.4 | 12 3/8 |
| 15 | M16 | 51–52 | 32.3 | 12 5/8 |
Children's Crocs Size Chart
Children's Crocs are available in two styles: Little Kids (labelled C) and Juniors (labelled J). The following chart covers both ranges:
| UK Size | US Size | EU Size | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 2 (Little Kids) | C2 | 17–18 | 9.8 | 3 7/8 |
| 3 (Little Kids) | C3 | 18–19 | 10.7 | 4 1/8 |
| 4 (Little Kids) | C4 | 19–20 | 11.5 | 4 1/2 |
| 5 (Little Kids) | C5 | 20–21 | 12.3 | 4 7/8 |
| 6 (Little Kids) | C6 | 22–23 | 13.2 | 5 1/8 |
| 7 (Little Kids) | C7 | 23–24 | 14.0 | 5 1/2 |
| 8 (Little Kids) | C8 | 24–25 | 14.9 | 5 7/8 |
| 9 (Little Kids) | C9 | 25–26 | 15.7 | 6 1/8 |
| 10 (Little Kids) | C10 | 27–28 | 16.6 | 6 1/2 |
| 11 (Little Kids) | C11 | 28–29 | 17.4 | 6 7/8 |
| 12 (Little Kids) | C12 | 29–30 | 18.3 | 7 1/8 |
| 13 (Little Kids) | C13 | 30–31 | 19.1 | 7 1/2 |
| 1 (Juniors) | J1 | 32–33 | 20.0 | 7 7/8 |
| 2 (Juniors) | J2 | 33–34 | 20.8 | 8 1/8 |
| 3 (Juniors) | J3 | 34–35 | 21.7 | 8 1/2 |
| 4 (Juniors) | J4 | 36–37 | 22.5 | 8 7/8 |
| 5 (Juniors) | J5 | 37–38 | 23.3 | 9 1/8 |
| 6 (Juniors) | J6 | 38–39 | 24.2 | 9 1/2 |
Crocs Fit Styles Explained
Crocs offer three distinct fit styles to accommodate different preferences and foot shapes. Understanding these options is crucial for finding your perfect fit:
Standard Fit
Our Standard fit offers a more snug and secure fit compared to Roomy or Relaxed styles. This style conforms comfortably to your foot with minimal slipping, making it ideal for those who prefer a closer, more supportive feel. Standard fit Crocs typically feature full shoe designs with a high back for added stability and support. This fit is best suited for individuals with narrower feet or those who prefer shoes that stay firmly in place throughout the day.
Relaxed Fit
Relaxed fit Crocs offer a balance between the snug Standard fit and the generous Roomy fit. These styles provide a little extra room whilst still feeling secure on your foot. Many Relaxed fit models feature laces, straps, or heel-hugging designs for added stability. You'll notice slight room around the perimeter of your foot, with your sides occasionally meeting the shoe walls, and a bit of wiggle room at the front. This fit works well for most foot shapes and is a popular choice for everyday wear and workplace environments.
Roomy Fit
Roomy fit is Crocs' most generous and spacious option, perfect for those seeking maximum comfort and airflow. This is the fit style of the iconic Classic Clog. In Roomy fit, your feet typically won't meet the sides of the shoe, allowing for excellent circulation around your toes and foot. The shoe is generously proportioned in length, so your toes shouldn't touch the front. This fit is ideal for those with wider feet, those who wear thicker socks, or anyone who simply prefers a more relaxed and breathable shoe experience. Some Roomy styles include a heel-hugging back strap for added stability.
Crocs Comfort Technology
Crocs uses proprietary Croslite™ foam technology in all their shoes. Beyond the basic Iconic Crocs Comfort™ that features the original foam cushion, Crocs now offers enhanced comfort levels:
- Iconic Crocs Comfort™: The original Croslite™ foam cushion that offers soft, supportive all-day wear
- Dual Crocs Comfort™: A deeper cushion layer that provides enhanced support whilst maintaining the signature softness
- Triple Crocs Comfort™: The maximum cushioning option featuring a pillow-top design with sink-into-it softness and comprehensive all-day support
Crocs Socks & Accessories Sizing
If you're purchasing Crocs socks or other accessories, sizing varies by product category:
| Size | Kids | Women | Men | Unisex |
|---|---|---|---|---|
| Small | 7–10 | 3–5 | 2–4 | 3–5 Women's / 2–4 Men's |
| Medium | 11–2 | 6–8 | 5–7 | 6–8 Women's / 5–7 Men's |
| Large | 3–6 | 9–11 | 8–12 | 9–11 Women's / 8–12 Men's |
| X-Large | 13–15 |
Crocs Size Chart UK — Practical Guidance
When shopping for Crocs in the UK, you'll find sizing displayed in UK, EU, and US formats across the Crocs UK website and authorised retailers. The most important thing to remember is that the actual shoe carries the US size on its sole. Here's what you need to know:
Understanding Crocs Sizing When Ordering Online
The Crocs UK website shows all sizes in UK and EU format for your convenience. However, when you receive your shoes and check the invoice or the shoe itself, the size will be marked in US sizing. This can initially cause confusion, but the sizing charts provided in this guide will help you match your preferred UK size to the corresponding US size printed on the shoe.
If you already own a pair of Crocs and want to reorder the same size, simply look at the bottom of your existing shoe to find the US size designation. You can then use this guide to confirm the equivalent UK size, or you can reference your shoe's label which may show all size formats.
Sizing Comparison: Do Crocs Run Small, Large, or True to Size?
Crocs are generally considered to run true to size when you select the correct fit style for your needs. The confusion often arises because:
- Roomy fit Crocs are intentionally generously sized for maximum comfort and airflow, which may feel larger than you expect
- Standard fit Crocs are more snug and may feel tighter if you're used to wearing Roomy styles
- Individual foot width can significantly impact perceived fit — those with wider feet should consider Roomy styles, whilst narrow feet may benefit from Standard fit
Rather than running small or large, Crocs prioritise comfort and fit style customisation. Most customers find their true size works perfectly once they understand which fit style suits their feet.
Sizing Tips for Specific Crocs Styles
Different Crocs styles may fit slightly differently based on their design:
- Classic Clog: This iconic style is notably spacious and is considered Roomy fit. Many customers purchasing the Classic Clog for the first time find the generous room surprising — this is intentional and allows for better air circulation.
- Crocs with Straps: Styles featuring ankle straps, heel straps, or laces (such as the Swiftwater or off-road styles) typically offer Relaxed fit and provide more security than the Classic Clog whilst maintaining comfort.
- Crocs at Work: Professional Crocs for healthcare and hospitality environments often feature Standard fit for a more secure, supportive wearing experience during long shifts.
- Sandal Styles: Crocs flip-flops and sandals are available in unisex sizing and run true to size. These are often more snug than Classic Clogs due to their open design.
When to Size Up or Down
Whilst most customers find their standard size works perfectly, there are specific situations where sizing up or down might be appropriate:
- Size up if: You plan to wear thick socks or moisture-wicking athletic socks, you
Sizing Information
General Fit
Crocs sizing tends to follow standard UK sizing. However, we recommend checking the specific size chart for each item.
Fit Recommendations
- Check product-specific size charts when available
- Read customer reviews for fit feedback
- Consider the item type (slim fit, regular fit, etc.)
- When in doubt, contact customer service