Bra Size Converter

Convert bra sizes between US, UK, EU, and French sizing systems based on band and cup measurements.

EU Band Size

68

UK Band Size34
French Band Size85
Bust Circumference (approx in)37 inches

Bra Size Conversion

Band Size Conversions

US/UKEUFrench 327085 347590 368095 3885100

Cup Sizes

US and UK cup letters generally align through D/DD but diverge at larger sizes. EU uses A, B, C, D, E, F progression.

How to Measure

  • Band: Measure snugly around the ribcage just below the bust
  • Cup: Difference between bust measurement and band measurement (each inch = one cup size)
  • Example Calculation

    Convert US 34C to other systems.

    1. 01EU band = (34-32) x 2.54 + 63 = 68 (round to 75)
    2. 02UK band = 34 (same as US)
    3. 03French band = 34 + 51 = 85
    4. 04Cup C is the same letter in US, UK, and EU

    Frequently Asked Questions

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