Free calculators
Instant calculators for BMR, TDEE, macros, BMI, water intake, and calorie deficits. No signup. No email gate. Pure formulas with live results.
- Foundation
BMR Calculator
Basal Metabolic Rate — calories your body burns at rest.
Open calculator - Daily burn
TDEE Calculator
Total Daily Energy Expenditure — your real maintenance calories.
Open calculator - Macros
Macro Calculator
Protein, carbs, and fat targets for your goal.
Open calculator - Meal prep
Meal Prep Macro Calculator
Batch recipe macros per serving and per 100g.
Open calculator - Body comp
BMI Calculator
Body Mass Index — quick health screening metric.
Open calculator - Hydration
Water Intake Calculator
Daily water target based on weight, activity, and climate.
Open calculator - Weight loss
Calorie Deficit Calculator
How much to cut to hit your goal weight by your target date.
Open calculator
AskCalories
Track meals with editable AI estimates
Use a photo, type what you ate, or dictate into chat. Review the estimated portions, calories, protein, carbs, fat, and fiber before saving.