Fuelstate
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How many gels for a marathon?
Grams per hour, times hours, divided by grams per gel, plus a spare. Here is that napkin math, live. It still can't see the heat, your gut, or the mix in your bottle.
The napkin can't see race day.
Treat 60g an hour as a starting picture, not a prescription. The real number moves with things a calculator never asks about.
- Heat and humidityA warm morning raises sweat and sodium loss, and changes what your gut will hold.
- Your gut90g an hour only works if you've trained up to it. A sensitive stomach needs a gentler ramp.
- The mix in your bottleCarbs in your drink count toward the same total, so you carry fewer gels.
- Pace and durationA slower day is a longer day. The total grows with every extra minute out there.
A pack list, not a number.
Fuelstate runs the same job on the products you already own, with your pace, the forecast and your gut, then calls each one when it's due.
- Your run and kit Pace, distance, conditions and the gels, chews and mixes in your drawer.
- Your plan How many of each to pack, and the minute each one comes out.
- Your cues Headphones, Lock Screen or Apple Watch call the next gel, so you're not doing grams at mile 18.
Fueling guidance is educational, not medical advice. If you have a medical condition, take medication, are pregnant, or have a history of GI disease or disordered eating, talk to a qualified professional first.
Know your number before the start.
Build a plan around the gels you already own.