Before you enter your first road race you must pick a category, and choosing one that matches your fitness keeps racing safe and fun. This checker estimates a sensible starting category from your power-to-weight, age, and any points you already hold.
How it works
The core metric is watts per kilogram at threshold:
W/kg = FTP (watts) / body weight (kg)
That number is mapped to a likely category band. If you supply British Cycling points, the official points thresholds take priority, since real categories are decided by results, not power:
BC points >= 200 -> Cat 1
>= 40 -> Cat 2
>= 10 -> Cat 3
else -> Cat 4 (entry)
Where you have no points, the W/kg estimate fills in: roughly under 3 W/kg suggests entry level, 3 to 4 mid, and above 4 the higher amateur categories.
Example and tips
A 75 kg rider with a 250 W FTP produces 3.33 W/kg, pointing to a mid Category 3 to 4 placement and a Category 4 to 5 USA equivalent. If you already hold race points, always enter them — the points rule overrides the power estimate because that is how the governing bodies actually classify riders. Use the W/kg figure to track fitness between events rather than as a guarantee of placing.