brasize.ai
Calculate
Japanese sizing · cup letter first

C85 Bra Size, In Full

A Japanese C85 is a 85 cm band with a C 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 38B.

The numbers

C85 measurements

Underbust≈ 85 cm (82.5–87.5)
Top bust≈ 100 cm
Difference≈ 15 cm → JP C
NotationCup first: C85, not 85C
The trap

A Japanese C is not a Western C

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 C85 corresponds to a US 38B and EU 85B. 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.

US38B
UK38B
EU / DE85B
FR / ES100B
IT5B
AU / NZ16B

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

Same volume, different band

C85 sister sizes

Snugger band, same volumeD80
Looser band, same volumeB90

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 volume nearly every style in Japanese ranges works, and Japanese ranges lean heavily on molded, lightly padded cups with soft wires. Choose by neckline; construction rarely limits you here.

Neighbors

Related Japanese sizes

Same band (85), other cups

Same cup (C), other bands

Answered

C85: answered

What is Japanese C85 in US sizing?

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

What measurements is C85 for?

An underbust around 85 cm (roughly 82.5–87.5 cm) and a top bust near 100 cm: a difference of about 15 cm, which Japanese sizing labels C. 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 C85?

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

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.

Calculate My Bra Size →