Japanese sizing · cup letter first

F85 Bra Size, In Full

A Japanese F85 is a 85 cm band with a F 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 38DD.

The numbers

F85 measurements

Underbust≈ 85 cm (82.5–87.5)

Top bust≈ 107.5 cm

Difference≈ 22.5 cm → JP F

NotationCup first: F85, not 85F

The trap

A Japanese F is not a Western F

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 F85 corresponds to a US 38DD and EU 85E. 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.

US38DD

UK38DD

EU / DE85E

FR / ES100E

IT5E

AU / NZ16DD

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

Same volume, different band

F85 sister sizes

Snugger band, same volumeG80

Looser band, same volumeE90

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

This volume rewards structure, which mainstream Japanese ranges provide less of: domestic stock thins out fast above an E70/E75 frame. Seamed cups and firm bands do the work; many shoppers at this size mix domestic and international brands via conversion.

Neighbors

Related Japanese sizes

Same band (85), other cups

A85B85C85D85E85G85H85

Same cup (F), other bands

F65F70F75F80F90

Answered

F85: answered

What is Japanese F85 in US sizing?

US 38DD (UK 38DD). Japanese cup letters sit one label ahead of Western ones for the same body (a Japanese F corresponds to a Western E-tier cup) so carrying the letter across unconverted buys a cup too big.

What measurements is F85 for?

An underbust around 85 cm (roughly 82.5–87.5 cm) and a top bust near 107.5 cm: a difference of about 22.5 cm, which Japanese sizing labels F. 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 F85?

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

38DDD bras →Sister 36G Sister 40DD

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.

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Two measurements, no inches added, sister sizes attached.

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