What size am I in Nike?
You don't need a tape measure.
If you know your size in Adidas, H&M, Zara, Uniqlo, Levi's, Gap, or ASOS, you already know your Nike size. WhatSize converts it instantly.
$2.99 · One-time purchase · No ads
Why you can't just Google your Nike size
Every size chart tells you to grab a tape measure. Wrap it around your chest. Stand up straight. Breathe out. Who does that?
Nike's "Medium" is different from every other brand's "Medium." The measurements are different. The fit is different. And it changes by region. US, UK, EU, Asia all use different numbers.
There's a faster way.
Find your Nike size in 30 seconds
You already own something that fits. That's all you need.
Step 1
Grab any top or pair of jeans that fits you well. Check the label and note the brand and size. That's your anchor.
Step 2
Open WhatSize. Select Nike as the brand you want to buy from. Enter your anchor size.
Step 3
Done. WhatSize compares the actual centimetre measurements from both brands and tells you your Nike size. No guessing. No returns.
Already know your size in another brand?
Convert any of these to your Nike size instantly:
Common questions
Do I really not need to measure myself?
No. If you own one piece of clothing that fits well from any supported brand, WhatSize can convert that to your Nike size. It uses real measurement data from both brands to calculate the match.
What if I don't own anything from a supported brand?
WhatSize supports 8 brands: Nike, Adidas, Zara, H&M, Uniqlo, Levi's, Gap, and ASOS. If you don't own anything from these brands, you can still enter manual body measurements.
Is Nike sizing the same in every country?
No. Nike uses different size labels in the US, UK, EU, and Asia. WhatSize handles regional differences automatically. Just select where you are shopping.
Does Nike run true to size?
It depends on the item and region. That's exactly the problem with generic advice. WhatSize doesn't guess. It compares the actual centimetre measurements from Nike's official size data to give you a specific answer for tops or bottoms.
Know your Nike size before you buy.
No measuring. No guessing. No returns.
$2.99 once. Works offline. 8 brands. 925 size variants.