Bra Size Guide Kenya — How to Measure in cm
How to measure your bra size in centimetres, the band and cup chart, sister sizes, the five-point fit check and which style suits which fit — without the +4 myth.
How to measure
You need a soft measuring tape and a mirror. Wear an unpadded bra if you have one; if not, measure against the body. Keep the tape snug but not tight. Take the measurements in centimetres; we do not add four inches.
- Underbust: wrap the tape around your ribcage, directly under the bust, and breathe out.
- Full bust: wrap the tape around the fullest part of the bust, keeping it parallel to the floor.
- Cup difference: full bust minus underbust, in centimetres.
Measurements are a starting point. If you are between sizes, message a fitter with your underbust, full bust and the style you are looking at — we will check the specific cut.
Do not add four inches. If your current band rides up, it is usually a band-size issue, not your body. Use the actual underbust measurement.
Band & cup chart
| Underbust (cm) | Band |
|---|---|
| 63–67 | 30 |
| 68–72 | 32 |
| 73–77 | 34 |
| 78–82 | 36 |
| 83–87 | 38 |
| 88–92 | 40 |
| 93–97 | 42 |
| 98–102 | 44 |
| 103–107 | 46 |
| Bust − underbust (cm) | Cup |
|---|---|
| Up to 2.5 | AA |
| 2.5–5 | A |
| 5–7.5 | B |
| 7.5–10 | C |
| 10–12.5 | D |
| 12.5–15 | DD / E |
| 15–17.5 | F |
| 17.5–20 | G |
| 20–22.5 | H |
Example: underbust 78 cm → band 36; full bust 96 cm → difference 18 cm → G cup. Start at 36G, then try the sister sizes.
Sister sizes
Sister sizes hold the same cup volume on a different band. If 36D is tight in the band but right in the cup, try 38C.
| Your size | Sister down | Sister up |
|---|---|---|
| 34C | 32D | 36B |
| 36DD | 34E | 38D |
| 38F | 36G | 40E |
| 40H | 38I / J | 42G |
The fit checklist
- Band: level all the way round, snug enough not to ride up when you lift your arms.
- Cup: no spilling, no gaping, no digging wire. Centre panel flat against the sternum.
- Straps: should not carry the whole bra or leave deep marks.
- Underwire: sits flat against the ribcage, not on breast tissue.
- Movement: bend forward, reach up, sit down. The bra should stay in place.
If you are between sizes
Take the band first, then adjust the cup. A band that rides up is too loose; a band that leaves deep marks is too tight. The cup is judged by how the bra sits, not by the number.
- Band too tight, cup right: go up one band and down one cup — 34D to 36C.
- Band right, cup too small: stay on the band and go up a cup — 34C to 34D.
- Cup right, band too loose: go down a band and up a cup — 36C to 34D.
Those are sister sizes: the same cup volume on a different band. The 60-second fit quiz returns both.
Which style for which fit
The right size in the wrong shape still feels wrong. Match the style to the fit issue:
- Full bust (DD–H): a full-cup bra with a tall side wing and a firm band — Imara Full-Cup Bra.
- Underwire discomfort: a wireless or soft-cup bra — Zuri Wireless Bra or Aurelia Silk Bra.
- Straps that fall or dig: a wide-strap wireless bra with a firmer band, so the straps stop doing the band's work.
- Open necklines: a low-plunge bra — Mvua Lace Plunge Bra.
- Everyday invisibility: seamless briefs and a smooth wireless bra — Zuri Seamless Brief 3-pack.
Every product page carries a fit note; if a style runs small we say so before you order. Care instructions are in the care guide.
International conversions
| Kenya / UK | US | EU | FR |
|---|---|---|---|
| 32B | 32B | 70B | 85B |
| 34C | 34C | 75C | 90C |
| 36D | 36D | 80D | 95D |
| 38DD | 38DD/E | 85DD | 100DD |
| 40F | 40F | 90F | 105F |
Get a second opinion
See the 10 fitting methods in the Fitting Lab — with what is live and what needs a decision
Send your underbust and full-bust measurements, the style you are looking at and what your current bra does wrong. A fit specialist will reply with a size and a sister size. Message us or take the quiz.