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Bra Size Comparison

36B vs 34C

Many people get confused between 36B and 34C. They look similar on paper but fit very differently.

36B
36B
  • Under-bust: 35.5–36.5 in (90–93 cm)
  • Bust: 37.5–38.5 in (95–98 cm)
  • UK: 36B
  • EU: 90B
  • Sister sizes: 38A, 34C
Full 36B guide →
34C
34C
  • Under-bust: 33.5–34.5 in (85–88 cm)
  • Bust: 36.5–37.5 in (93–95 cm)
  • UK: 34C
  • EU: 85C
  • Sister sizes: 36B, 32D
Full 34C guide →

What is the real difference between 36B and 34C?

Many people get confused between 36B and 34C. They look similar on paper but fit very differently.

How to know which size fits you

The simplest way is to measure. Take your under-bust snug and your bust loose. Round the under-bust to the nearest even inch — that is your band. Subtract the under-bust from the bust — every inch of difference equals one cup letter (1 = A, 2 = B, 3 = C and so on).

If your measurement is right between 36B and 34C, try 36B first on the loosest hook and walk around. If the band rides up, try 34C.

36B vs 34C — FAQs

Is 36B bigger than 34C?
It depends. Compare the actual measurements rather than just the size labels.
Are 36B and 34C sister sizes?
No — 36B and 34C are not sister sizes. Sister sizes always change band by 2 and cup letter by 1 in opposite directions.
Can I wear both 36B and 34C?
Probably not as everyday bras. The fit will be quite different. Pick the size that matches your actual measurements.
What is the difference between 36B and 34C in inches?
36B has an under-bust of 35.5–36.5 in and a bust of 37.5–38.5 in. 34C has an under-bust of 33.5–34.5 in and a bust of 36.5–37.5 in.

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