BraSizeConversion

Bra Size Calculator: Canada

Measure once, and this calculator highlights your size in Canada's US convention while showing all 7 international systems for imported brands. Enter your snug underbust and fullest bust below.

Enter your measurements

This calculation runs entirely in your browser. Your measurements are never stored or sent anywhere.

Shopping for bras in Canada

Canada shops US sizing almost entirely, with the same DDD-style ladder and the same mall-brand fit habits. The wrinkle is cross-border online orders from UK and EU brands, which arrive with letters that diverge after D.

Knix, a Canadian native, sizes by its own 1-8 scale based on measurements; use your centimeter numbers with their chart rather than converting from a US size.

Brands you will commonly see: La Vie en Rose, Knix, Aerie, US mall brands.

Canada follows the same US arithmetic as every other US market, so the conversion chart lives in one place rather than being repeated: the full US conversion chart. Sizes are written band first, then cup, as in 34DD.

Look up a specific size
32D32DD32DDD32F32I32K34D34DD
28 band30 band32 band34 band36 band38 band40 band42 band

Frequently asked questions

What bra sizing system does Canada use?
Canada primarily uses US sizing conventions in mainstream retail, though imported brands can carry other systems' labels. The calculator above highlights your US size and shows all 7 systems for imports.
Which bra brands are common in Canada?
Commonly available names include La Vie en Rose, Knix, Aerie, US mall brands. Local availability shifts, and each brand's own centimeter chart beats any converted label when they disagree.
What is a US 34DD in Canada sizing?
A US 34DD is a 34DD in Canada. The same bra is a UK 34DD and an EU 75E, because the cup ladders diverge after D.
Do I add inches to my underbust measurement in Canada?
No. The old habit of adding four or five inches was written for non-stretch fabric and produces a band about two sizes too loose on a modern elastic one. Measure snug and level, and use that number directly, whichever system the label uses.
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Last updated August 2026.