How does Marks & Spencer bra sizing run?
Marks & Spencer is labelled in UK sizing, carrying cups A–K. British staple — excellent everyday range. Below is how a Marks & Spencer size translates across all eight regional standards, plus sister sizes and where to buy.
Marks & Spencer size range & system
Marks & Spencer sizes in UK, with cups A–K. Known for everyday, tshirt, sport.
Marks & Spencer size conversion chart
Each row is one Marks & Spencer cup size read across the eight standards. The UK column (highlighted) is how Marks & Spencer labels its bras.
| US | UK | EU | FR | IT | AU | JP | IN |
|---|---|---|---|---|---|---|---|
| A | A | A | A | A | A | A | A |
| B | B | B | B | B | B | B | B |
| C | C | C | C | C | C | C | C |
| D | D | D | D | D | D | D | D |
| DD | DD | E | E | E | DD | E | DD |
| DDD | E | F | F | F | E | F | E |
| G | F | G | G | G | F | G | F |
| H | FF | H | H | H | FF | H | FF |
| I | G | I | I | I | G | I | G |
| J | GG | J | J | J | GG | J | GG |
| K | H | K | K | K | H | K | H |
| L | HH | L | L | L | HH | L | HH |
| M | J | M | M | M | J | M | J |
Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.
Common Marks & Spencer sizes
Open the full eight-standard conversion for a specific size:
Sister sizes in Marks & Spencer
If a Marks & Spencer bra fits in the cup but the band is off, your sister size keeps the same cup volume with a different band — go down a band and up a cup, or up a band and down a cup. Example: a 34D and a 32DD hold the same cup volume.
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Find your size in Marks & Spencer →Where to buy Marks & Spencer
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Marks & Spencer sizing FAQ
- Does Marks & Spencer run true to size?
- UK sizing. A-K cups. British institution. Excellent everyday bras.
- What sizing system does Marks & Spencer use?
- Marks & Spencer is labelled in UK sizing, with cups from A to K. Use the conversion table above to read your size across US, UK, EU, FR, IT, AU, JP and IN.
- What is a 34D in Marks & Spencer in EU sizing?
- A US 34D converts to EU 75D. Band conversions are exact; cup fit still varies by brand, style, and body — a conversion is a starting point, not a guarantee.