Japanese sizing · cup letter first

G75 Bra Size, In Full

A Japanese G75 is a 75 cm band with a G cup: written cup-first, measured in 2.5 cm steps, and one letter ahead of the Western alphabet. In US terms this body wears a 34DDD.

The numbers

G75 measurements

Underbust≈ 75 cm (72.5–77.5)

Top bust≈ 100 cm

Difference≈ 25 cm → JP G

NotationCup first: G75, not 75G

The trap

A Japanese G is not a Western G

Japanese cup labels start earlier and step in 2.5 cm increments, so each letter sits roughly one label ahead of its Western namesake: this G75 corresponds to a US 34DDD and EU 75F. Order your Japanese letter from a Western shop (or vice versa) and you’re a full cup off before the parcel ships. The converter translates in both directions.

US34DDD

UK34E

EU / DE75F

FR / ES90F

IT3F

AU / NZ12E

Bands translate cleanly (same centimeters as EU labels); only the letters shift.

Same volume, different band

G75 sister sizes

Snugger band, same volumeH70

Looser band, same volumeF80

Japanese sisters move in 5 cm band steps with one cup letter, same volume, different circumference. Useful when domestic stock stops one band short of yours.

Construction

What works at this size

At this depth Japanese domestic stock is genuinely scarce: this is specialist territory, and the practical route is international full-bust brands bought by conversion. The US/UK columns below are the sizes to shop.

Neighbors

Related Japanese sizes

Same band (75), other cups

A75B75C75D75E75F75H75

Same cup (G), other bands

G65G70G80G85G90

Answered

G75: answered

What is Japanese G75 in US sizing?

US 34DDD (UK 34E). Japanese cup letters sit one label ahead of Western ones for the same body (a Japanese G corresponds to a Western F-tier cup) so carrying the letter across unconverted buys a cup too big.

What measurements is G75 for?

An underbust around 75 cm (roughly 72.5–77.5 cm) and a top bust near 100 cm: a difference of about 25 cm, which Japanese sizing labels G. Japan measures in 2.5 cm cup steps against Europe's 2 cm, so conversions are nearest-label, not exact.

Why is the cup letter written first in G75?

Japanese convention writes cup-then-band. C70, not 70C. Same information, reversed order; on tags in Japan you may also see the band alone (70) with the cup on a separate line.

Shop itAt HauteFlair, our sister retailer

34G bras →Sister 32H Sister 36DDD

HauteFlair labels cups in UK letters, so these links already convert your size by position (a US DDD lands on a UK E, a US G on a UK F). HauteFlair is owned by the same company as Brasize.ai; that relationship never changes the sizing math, charts, or fit advice on this page. How this site makes money.

Start from the measured size

Two measurements, no inches added, sister sizes attached.

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