How the carb loading calculator works
Carb loading maximizes muscle glycogen stores before endurance events lasting 90+ minutes. Sports nutrition guidelines recommend 8–12 g of carbohydrate per kg of body weight per day for 1–3 days before the event, combined with tapered training.
Stick to familiar, low-fiber foods during loading — race week is not the time to experiment with new meals.
Why use our carb loading calculator?
LaCalc’s carb loading calculator is free, fast, and private. No sign-up, no downloads — type your numbers and get instant results. Every calculation runs in your browser, so your data never leaves your device.