Put in your race, how much you sweat and what your gut can handle. Fuel Perfect tells you how many carbs, how much fluid and how much sodium you need every hour, and when to take each gel and bottle.
Grams of carbs, ml of fluid and mg of sodium per hour, plus totals for the whole race. Works for running, cycling, gravel, triathlon and ultras.
Add the race location and date. Inside 16 days you get the live forecast. Further out, a two year average for that place and time. Hot day, more fluid and sodium.
Tap any number to see why it is what it is, with links to the published research. No black box.
Map the plan onto gels, chews and drink mixes you can actually buy, or build your own malto and fructose bottle.
Tell it what you're used to taking per hour and it caps the plan there, with steps to train your gut up over time.
Plans are worked out and stored on your phone. Only the weather lookup uses the internet. No account.
Why I built it
That's what I wrote in my notes after a long race. I knew I was under fueling, but every calculator I tried gave me one number with no reasoning, or wanted me to sign up. I wanted something that shows its work, knows the race day weather and tells me exactly how many gels go in my back pocket.
Nils
For efforts over about two and a half hours, most current guidance lands between 60 and 90 grams of carbs per hour, and trained athletes often go higher by mixing glucose and fructose. Your number depends on duration, intensity and what your gut is used to. Fuel Perfect works it out from those and shows the studies it used.
It depends a lot on how much you sweat, how salty your sweat is and how hot it is. Pick a rough sweat profile or enter your numbers from a sweat test, and Fuel Perfect adjusts for the forecast at your race.
Running, cycling, gravel, triathlon, and trail or ultra events, plus long training sessions in any of them.
No. You buy it once. There's no account, no ads and no tracking.
No. It's a planning tool based on published sports nutrition research. Try any plan in training before race day, and talk to a doctor if you have a medical condition.
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