Underwire Size Chart

On our website at www.bramakers.com, we have a complete underwire size chart, drawn out to their actual size, complete with measurements around the perimeter from tip to tip.

If you print off these wire charts, you can match up a wire from your collection to see what size it is. If you don’t have a wire that fits and you aren’t sure what wire size you would use, you can print off the wire page and paste the page on stiff cardboard or pattern paper. You will have a circular template of the actual wire size and shape. Place the template around the naked breast with your arm raised. The wire should fit against the chest wall with no gaps under or around the breast, when the arm is raised. Sometimes the breast looks larger at the base than it is, and that can lead to choosing an incorrect wire size.

A SECOND METHOD

If you know your bra pattern size, you can use the chart below to find the wire size associated with that bra size. The wires listed in the cells below represent the wire sizes that the Pin-up Girls Patterns use. The patterns will usually accept one wire size lower or higher than the chart suggests. Please note that AAA, AA and A take the same size underwire.

The wire SIZE actually represents the diameter of the breast.

BAND	AAA	A	A	B	C	D	E	F	G	H
32	30	30	30	32	34	36	38	40	42	44
34	32	32	32	34	36	38	40	42	44	46
36	34	34	34	36	38	40	42	44	46	48
38	36	36	36	38	40	42	44	46	48	50
40	38	38	38	40	42	44	46	48	50	52
42	40	40	40	42	44	46	48	50	52	54
44	42	42	42	44	46	48	50	52	54	56
46	44	44	44	46	48	50	52	54	56	58
48	46	46	46	48	50	52	54	56	58	60

Once you know the wire size from the underwire size chart, you will need to know what length in the front you would like to have. Wires are available in a variety of front arm heights, either high or low or anything in between and can be shaped differently in order to encourage the breast forward or back according to its final use.

The most common wire is the LONG underwire, so that is the one I’ve used in most of the bra patterns from Pin-up Girls. That is not to say that you can’t use a Short wire or a Super Long wire but alterations need to be made to the pattern in order to accommodate the changed length.

Underwire Size Chart