bonkproof!

Wattage, duration, FTP — bonkproof! delivers science-based targets for carbs and fluid. No guessing. Just numbers.

Ever had that feeling? Two hours in, legs going heavy, head starting to spin — and you know you didn't eat enough. Again.

bonkproof helps you avoid that. No guesswork, no rules of thumb — just science-based estimates, calibrated to your data. Enter your weight and FTP once, then before each ride just add power and duration. The rest is automatic.

What you get:

• Carbs per hour - estimated target for your training zone • Fluid needs per hour - based on weight, sweat rate, and temperature • A fueling schedule - what to eat and drink, and when • A packing checklist - gels, bottles, everything at a glance

Built for road cyclists who want to know what their body actually needs. No account, no subscription, no cloud. Everything stays on your device.

Estimated values are based on sports science guidelines (Jeukendrup 2014, Sawka et al. 2007, Thomas et al. 2016) and are not medical advice. If you have any health conditions, please consult a physician before use.