Adult sizes
Standard curve at 50% female.
- XS474%
- S19515%
- M33625%
- L35026%
- XL24218%
- 2XL1149%
- 3XL615%
5K Shirt-Size Calculator
Plug in registrants, audience profile, female %, and weather. We will return a per-size order with the right buffer baked in. No quote form, no email.
Registrants
1,200
Order total
1,345
Buffer
+12%
Top size
L
Why these numbers
- Race-day pickup means late registrants always go larger. Buffer is +12% so you don't run out of L/XL/2XL.
- General 5K profile at 50% female reads as balanced, which pushes the curve toward S–M.
- Total order = registrants × (1 + 12%). Distributions blend published men's / women's curves by your female %.
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