The band should feel secure without digging in; cups and straps should feel comfortable as you move.
Shock Absorber bra size calculator
Enter your measurements once and find the size you should actually try in the brands you shop. Compare US, UK and EU labels and see the nearby sizes.
- Brand-aware sizing
- US / UK / EU
- No account required
How the Shock Absorber guide works
Use the Shock Absorber calculator
Uses the manufacturer’s published band ranges. The cup label comes from comparing the bust with your measured underbust, not a generic rule borrowed from another brand.
- Region and system
- United Kingdom / fitting-guide subset · UK
- Data reviewed
- 2026-10-07
- Band labels covered
- 30, 32, 34, 36, 38, 40
- Cup labels covered
- A, B, C, D, DD, E, F, FF, G, GG, H, HH
Bands are garment labels, not body ranges. Some combinations may be missing from this chart, and chart coverage is not a stock check.
Source scope and chart notes
Uses the three official fitting-guide images: measure rib cage directly under breasts and fullest bust, then subtract those two body measurements (not the garment-band label). Printed band buckets 26.5–38 inches map to 30–40; whole-inch differences 1–12 map to A–HH. Unspecified fractional gaps remain unavailable. Sports style availability is separate.
Let’s find your starting point
Measure over a t-shirt or a lightly lined bra, or without one—whichever feels right.
A number can guide you. Your comfort gets the final say.
Bra sizing isn’t consistent from one label—or even one style—to the next. Think of this as a useful first try, not a rule you have to fit.
If your first try is close but not quite right, compare neighboring sizes and another style or cut.
Brands use different patterns, fabrics, and size ranges. A mismatch says more about the garment than about you.
