Kaliber: Endurance Nutrition

Your race-day fuel plan, calculated.

Kaliber turns your race into a deterministic fueling plan: carbs, fluid, and sodium per hour, hour by hour. Built triathlon-first for 70.3 and 140.6, with full support for marathon, ultra, and long-course cycling across 13 race distances.

HOW IT WORKS Tell Kaliber your race distance, your body, your sweat rate, and the products you're carrying. It produces your carbs, fluid, and sodium targets per hour, a packing list, a timed race-day schedule, and an auto-generated race card to carry.

BRAND-NEUTRAL Bring your own products — gels, drink mix, salt caps, whatever you already use. Kaliber does the math; it doesn't lock you into a brand.

SODIUM-AWARE Sodium targets come from your sweat rate and your sweat sodium — the lever generic bodyweight calculators skip.

SHOWS ITS WORK Every number is explained: 90 g/hr × 6h = 540 g. No black box. The same input always produces the same plan — no randomness, no guessing.

RACE CARD Your plan becomes a half-hour race card you can print or export to PDF and carry on race day.

Kaliber makes a process promise: fueling math you can trust and execute.

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