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Natori bra sizes: chart, conversions and sister sizes
Natori labels its bras in US sizes. Here is its size range according to Natori's bra size guide (natori.com, October 2026), its equivalents in EU, FR, UK and JP sizing, and the closest sister size when a size falls outside that range.
- Label system
- US sizese.g. 34C
- Bands
- 28–44EU/JP 60–100 · FR 75–115
- Largest cup
- HEU/FR/JP H · UK FF
- Official guide
- natori.com
What to know about Natori labels
Natori labels its bras in US sizes. Its bra size guide reads the cup from the difference between bust and ribcage, in inches: 1 inch for A, 2 for B, 3 for C, 4 for D, 5 for DD, 6 for DDD, 7 for G and 8 for H. After DDD the brand writes G, not DDDD.
The same guide turns the ribcage measurement into a band number, from 28 (a ribcage of 23 to 24 inches) to 44 (43 to 45 inches), and lists daywear in letter sizes from XXS to XXXL. Natori also offers virtual bra fitting appointments with its stylists.
A US G at Natori is a UK F and an EU G; a US H is a UK FF and an EU H.
How US sizes work
A US size is a band number and a cup letter. The band is an inch-based label (30, 32, 34…) shared with UK sizes. After D, most US brands go DD, DDD, G, H, I, J (some write DDDD for G, and a US G is a UK F), where UK cups go DD, E, F, FF, G, GG, H, HH, J. EU and French sizes number the band differently: a US 34 band is 75 in EU sizes and 90 in French sizes.
The Natori size range
According to Natori's bra size guide (natori.com, October 2026), Natori bras come in bands 28–44 (US) with cups up to H. The tables start at cup A. A given style can come in fewer sizes: check its product page.
| US/UK | EU/JP | FR | Underbust (cm) | Underbust (in) |
|---|---|---|---|---|
| 28 | 60 | 75 | 57.5–62.5 | 22.6–24.6 |
| 30 | 65 | 80 | 62.5–67.5 | 24.6–26.6 |
| 32 | 70 | 85 | 67.5–72.5 | 26.6–28.5 |
| 34 | 75 | 90 | 72.5–77.5 | 28.5–30.5 |
| 36 | 80 | 95 | 77.5–82.5 | 30.5–32.5 |
| 38 | 85 | 100 | 82.5–87.5 | 32.5–34.4 |
| 40 | 90 | 105 | 87.5–92.5 | 34.4–36.4 |
| 42 | 95 | 110 | 92.5–97.5 | 36.4–38.4 |
| 44 | 100 | 115 | 97.5–102.5 | 38.4–40.4 |
| US | EU/FR/JP | UK | Bust − underbust (cm) | Bust − underbust (in) |
|---|---|---|---|---|
| A | A | A | 8.75–11.25 | 3.4–4.4 |
| B | B | B | 11.25–13.75 | 4.4–5.4 |
| C | C | C | 13.75–16.25 | 5.4–6.4 |
| D | D | D | 16.25–18.75 | 6.4–7.4 |
| DD | E | DD | 18.75–21.25 | 7.4–8.4 |
| DDD | F | E | 21.25–23.75 | 8.4–9.4 |
| G | G | F | 23.75–26.25 | 9.4–10.3 |
| H | H | FF | 26.25–28.75 | 10.3–11.3 |
Common Natori sizes in other systems
| US | EU | FR | UK | JP |
|---|---|---|---|---|
| 32A | 70A | 85A | 32A | A70 |
| 32B | 70B | 85B | 32B | B70 |
| 32C | 70C | 85C | 32C | C70 |
| 32D | 70D | 85D | 32D | D70 |
| 32DD | 70E | 85E | 32DD | E70 |
| 32DDD | 70F | 85F | 32E | F70 |
| 34A | 75A | 90A | 34A | A75 |
| 34B | 75B | 90B | 34B | B75 |
| 34C | 75C | 90C | 34C | C75 |
| 34D | 75D | 90D | 34D | D75 |
| 34DD | 75E | 90E | 34DD | E75 |
| 34DDD | 75F | 90F | 34E | F75 |
| 36A | 80A | 95A | 36A | A80 |
| 36B | 80B | 95B | 36B | B80 |
| 36C | 80C | 95C | 36C | C80 |
| 36D | 80D | 95D | 36D | D80 |
| 36DD | 80E | 95E | 36DD | E80 |
| 36DDD | 80F | 95F | 36E | F80 |
| 38A | 85A | 100A | 38A | A85 |
| 38B | 85B | 100B | 38B | B85 |
| 38C | 85C | 100C | 38C | C85 |
| 38D | 85D | 100D | 38D | D85 |
| 38DD | 85E | 100E | 38DD | E85 |
| 38DDD | 85F | 100F | 38E | F85 |
Estimates from standard size tables; a given style can differ. UK and US band numbers are labels, not your underbust in inches.
Sizes just outside the Natori range: the closest sister size
A sister size keeps about the same cup volume on another band. For a size just outside the Natori range given on this page, here is the sister size inside it.
| Size (US) | Sister size in the range | Change |
|---|---|---|
| 32I | 34H | one band up, one cup down |
| 34I | 36H | one band up, one cup down |
| 36I | 38H | one band up, one cup down |
| 38I | 40H | one band up, one cup down |
| 46B | 44C | one band down, one cup up |
| 46C | 44D | one band down, one cup up |
| 46D | 44DD | one band down, one cup up |
Natori sizes: your questions
What does the Natori bra size chart cover?
Natori sizes are US sizes. According to Natori's bra size guide (natori.com, October 2026), the range covers bands 28–44 and cups up to H. The tables above give each of them in EU, FR, UK and JP sizing; for example, a 34C from Natori is EU 75C, FR 90C, UK 34C and JP C75.
How do you measure for a Natori bra?
Natori's guide uses two measurements in inches. The ribcage, snug and level just under the bust, gives the band; the bust at its fullest point, minus the ribcage, gives the cup, one letter per inch from A (1 inch) to H (8 inches). The Cherry Size calculator works from the same two measurements and gives an estimate in US sizes and the other main systems.
What is the Natori bra size range?
According to Natori's bra size guide (natori.com, October 2026), the Natori range covers bands 28–44 (EU 60–100) and cups up to H (UK FF). The tables start at cup A. A given style can come in fewer sizes: check its product page.
What cup sizes does Natori make?
In the range given on this page, Natori cups run A, B, C, D, DD, DDD, G, H (US). In UK sizes, the same cups read A, B, C, D, DD, E, F, FF. The cup table above gives the bust-minus-underbust difference for each one.
How do Natori bra sizes convert to UK sizes?
Natori uses US sizes. Converting to UK sizes: the band number stays the same; cups DDD → E, G → F and H → FF, the other letters unchanged. For example, 34DDD becomes 34E.
Is there a Natori bra size calculator?
Natori's bra size guide, linked below, turns a ribcage and a bust measurement into a size, and the brand offers virtual bra fitting appointments. The Cherry Size calculator works from the same two measurements and gives a size estimate in US sizes and the other main systems; the tables above then give the US label to look for at Natori.
Is my Natori size the same as at other brands?
With the same measurements, the size that fits can change from brand to brand and from style to style, and the tables on this page convert labels only: they cannot show that difference. The Cherry Size app takes two measurements, underbust and bust, and tells you the size to try at Natori.
Natori sizes on the brand's own website
Natori sizes, on the brand's website
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