How Aimer sizing works
Aimer uses japanese sizing (centimeter bands). Measure your snug underbust and standing bust as described in our fit guide, then read your size from the chart below. If you already know your size in another system, convert it first with our size converter.
Good to know: China labelling uses centimeter bands like 70/75/80.
Chart guide
| Band (cm) | Typical cup range |
|---|---|
| 65 | A–C |
| 70 | A–E |
| 75 | A–F |
| 80 | A–F |
Typical Japanese centimeter sizing. Ranges differ by brand; confirm on the official chart below.
Brand charts change over time. If anything here disagrees with the official chart linked above, the official chart wins. The outbound link is provided for reference.
Frequently asked questions
What size system does Aimer use?
Aimer uses japanese sizing (centimeter bands). China labelling uses centimeter bands like 70/75/80.
How do I convert my size to Aimer?
Measure your underbust and bust, get your size in your usual system with our calculator, then map it across with the size converter before checking the official Aimer chart.