Clothing and shoe size converter for AU, UK, US, CA and EU
Find your best clothing and shoe size match before you buy. SizeSwapper compares official brand size guides, AU, UK, US, CA and EU sizing, and your own measurements — the strongest fit guidance available, short of trying it on. Get a confidence rating and between-size advice, so you shop faster with less guesswork and fewer wrong-size returns.
Popular examples- AU 12 → US 8
- Zara M → ASOS 10
- EU 39 → US 8
- Between sizes? We guide you to tighter or roomier fits
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Next vs Marks & Spencer sizing
This comparison uses visible measurement rows to map published sizes from Next to the closest Marks & Spencer size.
Women tops
| Source size | Source bust/chest | Source waist | Source hip | Closest target | Target bust/chest | Target waist | Target hip |
|---|---|---|---|---|---|---|---|
| Next 6 | 80 | 62 | 86 | Marks & Spencer 8 | 82 | 65 | 90 |
| Next 8 | 82.5 | 64.5 | 88.5 | Marks & Spencer 8 | 82 | 65 | 90 |
| Next 10 | 86.5 | 68.5 | 92.5 | Marks & Spencer 10 | 86 | 69 | 94 |
| Next 12 | 91.5 | 73.5 | 97.5 | Marks & Spencer 12 | 91 | 74 | 99 |
| Next 14 | 96.5 | 78.5 | 102.5 | Marks & Spencer 14 | 96 | 79 | 104 |
| Next 16 | 101.5 | 83.5 | 107.5 | Marks & Spencer 16 | 101 | 84 | 109 |
Women dresses
| Source size | Source bust/chest | Source waist | Source hip | Closest target | Target bust/chest | Target waist | Target hip |
|---|---|---|---|---|---|---|---|
| Next 6 | 80 | 62 | 86 | Marks & Spencer 8 | 82 | 65 | 90 |
| Next 8 | 82.5 | 64.5 | 88.5 | Marks & Spencer 8 | 82 | 65 | 90 |
| Next 10 | 86.5 | 68.5 | 92.5 | Marks & Spencer 10 | 86 | 69 | 94 |
| Next 12 | 91.5 | 73.5 | 97.5 | Marks & Spencer 12 | 91 | 74 | 99 |
| Next 14 | 96.5 | 78.5 | 102.5 | Marks & Spencer 14 | 96 | 79 | 104 |
| Next 16 | 101.5 | 83.5 | 107.5 | Marks & Spencer 16 | 101 | 84 | 109 |
Women bottoms
| Source size | Source bust/chest | Source waist | Source hip | Closest target | Target bust/chest | Target waist | Target hip |
|---|---|---|---|---|---|---|---|
| Next 6 | 80 | 62 | 86 | Marks & Spencer 8 | 82 | 65 | 90 |
| Next 8 | 82.5 | 64.5 | 88.5 | Marks & Spencer 8 | 82 | 65 | 90 |
| Next 10 | 86.5 | 68.5 | 92.5 | Marks & Spencer 10 | 86 | 69 | 94 |
| Next 12 | 91.5 | 73.5 | 97.5 | Marks & Spencer 12 | 91 | 74 | 99 |
| Next 14 | 96.5 | 78.5 | 102.5 | Marks & Spencer 14 | 96 | 79 | 104 |
| Next 16 | 101.5 | 83.5 | 107.5 | Marks & Spencer 16 | 101 | 84 | 109 |
Fit notes: True to size True to size / Generous hip scaling
Sources: Next and Marks & Spencer official size guides. Last checked: 2026-06-20.