To use the calculator, take both measurements as described below in inches (please round up 1/2 inches). Enter the measurements into the relevent boxes in the calculator and click 'Calculate' to get your size.
- Whilst not wearing a bra, measure around your body under your bust in inches, holding the tape firmly but comfortably.
- Measure around the fullest part of your bust, ensuring the tape is straight across your back.
Size conversion chart for briefs, thongs and suspender belts
|Waist ( cm )||63||65||69||74||79||84||89||95||101||107||113||119||125|
|Hips( cm )||88||90||94||99||104||109||114||120||126||132||138||144||150|
Is the back band too small?
Lift up your arms, is the back band too tight and digging in, is the underwire (if there is one) too tight against your body (or in the case of non-wired bras is the casing the wire would be in too tight against your body)? Does the underwire (or casing) fit the natural curve under your bust or does it stop short.
Lift up your arms and look straight at yourself, is the breast tissue spilling over the band under your arms?
By going up a back size you will feel more comfortable i.e. from 34" to 36".
The front of your bra being pulled down?
This is also a sign that the back band is too small, have a look, the underwire (or in the case on non-wired bras the casing) should sit under the bust and follow the natural curve of your bust, it should not be pulling down.
If it is pulling down, go up a back size i.e. from 34" to 36".
Do the shoulder straps dig in?
Have a look, are the shoulder straps are digging in on the top of your shoulders?
There are two reasons this could be happening, the first is that you have the shoulder straps adjusted so that they are too short, the other is that the back band is too loose and forcing the shoulder straps to support your bust.
You can either loosen the shoulder straps or go down a back size i.e. from 36" to 34".
Is the "bridge" (centre front) lifting away from the body?
The centre front of any underwired bra should lie flat against the body however the exception to this is when you are wearing a non-wired bra.
The underwire plays an important part in "securing" the bridge flat to the breast bone and creating a firmer fit, if there is no wire to do this the fit will be softer (which many prefer) and this does mean the bridge (with out a wire in place) can lift slightly away from the breast bone.
As long as you are happy with the fit in every other area, your non-wired bra will still give you great shape and support.
If a wired bra lifts away from the breast bone at the bridge, this could be a sign that the cups are too small and you need to go up a cup size i.e from "AA" to "A".
Is the underwire digging in?
Is the underwire digging into the breast tissue and is the breast comfortably and completely encased in the cup?
If not, you need to try a bigger cup size i.e swapping a "AA" for an "A".
Are you bulging over the top of the cup?
Look at your self straight on in the mirror and then to your side, is the breast tissue bulging out over the top of the cup?
This means the cup is too small and you need to go up a cup size i.e from "AA" to "A".
Are the cups too big?
Do the cups crease or do they gape at the top, is there space between your bust and the cup? If there is you might want to try going down a cup size i.e from "A" to "AA".
If, however, the cup fits snugly everywhere else but is gaping where the cup meets the strap, it could be that the bra is the wrong shape for you, try loosening the shoulder straps and tightening the back band and if that doesn't work, look at full cup bras rather than plunge or balcony.
Do you have one breast bigger than the other?
Most women do so don't worry it is not unusual but it is important that you fit the bra to the bigger breast.
Try tightening the shoulder strap on the smaller side to avoid the cup sagging and if required, add a little booster pad to the cup of the smaller breast.
Remember most of our bras come with removable booster pads so you can take one out of the bigger side and add it to the cup on the smaller side and you can always ask us for a spare!
Is the back band too big?
Lift up your arms and check that the underband fits snugly, the underwire (if there is one) should be sitting on the body (or in the case of non-wired bras, the casing the wire would be in, should be sitting on the body).
Check that the band is not riding up at the back and that it does not move or slide around when you move. Any of the above may mean that the back band is too big and you need to go down a size i.e. from 36" to 34".