Chinese bra size chart to US complete guide

Read a bra label as two parts: band and cup. A Chinese seller may use an EU-style label such as 75B, but the seller’s actual sizing system still needs confirmation. A familiar letter alone does not prove that two brands use the same cup sequence.

Use a named band-and-cup reference

The bra label converter follows Triumph’s international band and cup tables. EU-style band labels 65–110 compare with US/GB bands 30–48. These are retail labels; converting 75 centimetres into inches does not produce the US band.

Examples you can reproduce

• B65 normalises to 65B and compares with Triumph US 30B / GB 30B.
• 75A compares with US 34A / GB 34A.
• 80B compares with US 36B / GB 36B.
• 85C compares with US 38C / GB 38C.
• 100E compares with US 44DD / GB 44DD in this reference.

Choose US for reverse lookup and enter 34DDD. That row compares with EU-style 75F and Triumph GB 34E. Simply keeping the same cup letter would give the wrong result.

Why UK cup letters need special care

After D, international sequences diverge. Some UK brands use FF or GG. Those labels do not occur in this particular Triumph GB sequence, so the tool reports them as unsupported rather than guessing another row. Use the actual manufacturer’s chart for those labels.

A label converter is not a fitting calculator

To choose a new bra from body measurements, follow the specific product’s underbust and bust instructions. Do not use an unverified universal bust-minus-underbust formula. A band label is nominal, cup volume depends on the band, and design, stretch, wire shape and padding can change fit.

Letter-only soft bra sizes such as XL or 2XL need that garment’s own measurement chart. Age, nationality, height and number of children cannot determine a person’s band or cup. No such size is calculated here.

Read a Chinese product chart

Identify 下胸围 / underbust and 上胸围 or 胸围 / bust. Confirm whether the figures describe the body or garment. Use the chart translator for the labels, then retain the seller’s original measurement ranges. If the listing gives no reliable chart, ask for one before selecting a size. Reference reviewed 2026-10-15; it does not imply every label combination is sold.