Fuel and hydration tools for ultra runners
Free, no sign-up. Everything runs on your device, so nothing you type is sent anywhere. The same maths as the UltraCalcPal app.
- Carbs per hour calculatorHow many grams of carbohydrate to take each hour of an ultra.
- Fluid and sodium calculatorFluids and sodium per hour from your weight, the weather and your sweat.
- Heat adjustment calculatorHeat index, WBGT and how much more to drink and salt in hot, humid weather.
- Ultra fuel plan calculatorA whole race plan: per hour, hour by hour, race totals and a rough fuel budget.
- Aid station and drop bag plannerWhat to carry between aid stations and what to pack in each drop bag.
- Race-week nutrition plannerCarb loading, a caffeine plan within safe limits and recovery after the finish.