Nutrition Tools

7 tools available

Translate duration, body mass, and sweat observations into transparent starting points. These tools support carbohydrate planning, bottles, sweat-rate estimation, and general body metrics while keeping their limits visible.

  • Plan carbohydrates
  • Estimate hydration
  • Review energy needs

From pre-race carbohydrates to bottle logistics

Separate pre-event carbohydrate arithmetic from during-event starting points, then turn the fluid target you choose into a carrying plan.

Carbohydrate Loading Planner

Calculate a transparent daily carbohydrate range by body mass.

NutritionRunningTriathlon

Hydration Bottle Planner

Turn an hourly fluid target into total fluid and bottle count.

NutritionCyclingTriathlonGeneral

Endurance Fuel & Hydration Starting Points

Plan carbohydrate guidance by session duration, then calculate fluid and sodium totals from athlete-entered rates in metric or imperial units.

NutritionRunningCyclingTriathlon

Sweat Rate & Hydration Calculator

Estimate measured sweat rate from body-mass change, fluid intake, urine loss, and duration.

NutritionGeneral

Reference Weight Formula Comparison

Compare historical Hamwi and Devine height-based reference weights with clear limits—never presented as ideal racing or weight-loss targets.

NutritionGeneral

BMR & TDEE Calculator for Athletes

Estimate BMR and activity-adjusted daily energy expenditure with published equations.

NutritionGeneral

BMI Calculator

Calculate your Body Mass Index with WHO classifications.

NutritionGeneral