There are several ways to choose underwire. The easiest way is to go by your bra size. To do this, you need to measure yourself to determine your bra size. Read the article: Do you know your actual bra size?
In my example: a woman with a bust measurement of 92 cm and a underbust measurement of 77 cm has a bra size of 75 C.
In the next step, the underwire size is selected. The underwire sizes shown refer to a B cup size.
| temple size | Corresponds to bra size |
| 60 | 60 B |
| 65 | 65 B |
| 70 | 70 B |
| 75 | 75 B |
| 80 | 80 B |
| 85 | 85 B |
| 90 | 90 B |
| 95 | 95 B |
| 100 | 100 B |
| 105 | 105 B |
| 110 etc. | 110 B |
As a result, a woman with a bra size of 75B would be suitable for an underwire in size 75. Now you are probably wondering, what about C, D, E, H...A cup sizes?
Cross sizes are used here.
| cup size -> | A | B | C | D | E | F | G | H | J |
| underbust measurement |
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| 60 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 |
| 65 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 |
| 70 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 110 |
| 75 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 110 | 115 |
| 80 | 75 | 80 | 85 | 90 | 95 | 100 | 110 | 115 | 120 |
| 85 | 80 | 85 | 90 | 95 | 100 | 110 | 115 | 120 | 125 |
| 90 | 85 | 90 | 95 | 100 | 110 | 115 | 120 | 125 | 130 |
| 95 | 90 | 95 | 100 | 110 | 115 | 120 | 125 | 130 | 135 |
| 100 | 95 | 100 | 110 | 115 | 120 | 125 | 130 | 135 | 140 |
For a woman with a bra size of 75 C, an underwire of size 80 is required.For a woman with a bra size of 85 A, an underwire of size 75 is required.