Clothing & Wearables calculator
What Sports Bra Size Do I Need?
Use your measurements for underbust circumference, full bust circumference, and activity impact to find sports bra sizing profile.
Enter your measurements
To work out what sports bra size do i need, begin with underbust circumference, full bust circumference, and activity impact. The calculator produces sports bra sizing profile from the measurements that actually control the result.
- Underbust circumference — Required
- Full bust circumference — Required
- Activity impact — Optional
Sports bra sizing profile
Enter the measurements above to calculate sports bra sizing profile.
How the calculation works
The configured inputs feed this calculation: Return underbust, bust and impact level; choose band/cup from the exact sports-bra brand chart and use impact level to choose support construction.. The tool then reports sports bra sizing profile.
Worked example
Example: Underbust circumference = 82 cm; Full bust circumference = 96 cm; Activity impact = medium. Result: Use this measurement profile with the exact current manufacturer, brand or governing-body chart; no universal labelled size is assumed.
Before you decide
Enter the dimensions that will exist in real use, not an approximate catalogue category. Use the current manufacturer, brand, league or governing-body specification for the final labelled size or rule; those external charts can change and are not treated as universal constants. For what sports bra size do i need, the limiting result on this page is sports bra sizing profile.
Runtime-specific source required. Use the exact current manufacturer, brand, model, regional conversion, league or governing-body chart/rule that applies to the user's actual product or competition; a single static URL would be misleading.
Frequently asked questions
What does the Sports Bra Size calculator tell me?
It returns sports bra sizing profile from the measurements entered on this page. The calculation is specific to sports bra size, so the result should be compared with the exact product or specification you are considering.
Which measurements should I take for sports bra size?
Measure underbust circumference, full bust circumference, activity impact. Use clear, usable dimensions rather than nominal room or product labels.
Why doesn't the calculator force a universal sports bra size size label?
Because labelled sizing varies between brands, models, leagues or governing bodies. The tool returns the measurements or requirements needed to make a reliable chart comparison.