Measure Your Bra Size Without a Measuring Tape

Find anything flexible that does not stretch: a phone cable, shoelace, ribbon. Underbust: wrap it snugly where a band sits, level all the way around; pinch the meeting point, lay it flat and measure to the pinch with any ruler. Bust: repeat over the fullest point, this time letting it rest without compressing. Two numbers in, size out: And the most tape-like tapeless option of all: the printable measuring tape, with a calibration square that catches printer scaling.

String sag only ever inflates a reading, so measure the underbust twice and keep the smaller number. Expect to land on the right size or one sister size away: confirm with the five fit checks at the first try-on.

A bra that passes the fit checks is itself a measurement. Read its label, then verify it still earns the size: band level and firm on the loosest hook, cups smooth with no gap or spill, gore flat on the sternum, straps doing almost nothing. If it passes on the middle or tightest hook, the elastic has stretched: your working size is one band down, one cup up: its snugger sister. If a brand runs large or small, the brand pages say which way.