How can I measure myself without a tape measure?
How do you measure your bra size manually?
How do I measure my cup size at home?
Why do you add 4 inches to your band size?
When bra sizes were first conceived in the 1930s, the materials used for bras were a lot stiffer and less flexible – women were only just out of corsets – so manufacturers used to recommend adding 4 inches to your actual size to get the correct band size.