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Nutrition & Diet Calculators

Plan your nutrition with calculators for daily calories, macros, protein, water intake, fiber, and calories burned during exercise.

TDEE Calculator

Estimate your Total Daily Energy Expenditure based on activity level.

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BMR Calculator

Calculate your Basal Metabolic Rate — the calories your body burns at rest.

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Calorie Calculator

Find your daily calorie goal for weight loss, maintenance, or gain.

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Macro Calculator

Distribute your daily calories across protein, carbs, and fat.

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Protein Intake Calculator

Calculate your daily protein requirements based on weight and activity.

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Water Intake Calculator

Calculate your recommended daily water intake based on weight and activity.

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Calories Burned Calculator

Estimate calories burned during exercise using MET-based calculations.

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Fiber Intake Calculator

Find your recommended daily fiber intake based on age, sex, and diet.

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Calorie Deficit Calculator

Plan your calorie deficit with TDEE-based targets, safety floors, and weight loss projections.

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Keto Calculator

Calculate your keto macros with standard, moderate, and high-protein ratio presets.

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Steps to Calories Calculator

Convert your daily step count into an estimated calorie burn based on weight and stride.

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Walking Calories Calculator

Estimate calories burned while walking based on speed, duration, and incline.

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Intermittent Fasting Calculator

Calculate your eating and fasting windows for 16:8, 18:6, 20:4, and OMAD protocols.

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Body Recomposition Calculator

Get calorie cycling targets and protein goals for simultaneous fat loss and muscle gain.

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Vitamin D Calculator

Estimate your vitamin D supplement dose based on body weight, blood levels, and sun exposure.

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Magnesium Calculator

Find your ideal magnesium dose and form recommendation based on your health goal.

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Creatine Loading Calculator

Calculate your creatine loading and maintenance doses with saturation timeline and cost estimate.

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Frequently Asked Questions

How do I calculate my daily calorie needs?
Start with the TDEE Calculator to estimate your Total Daily Energy Expenditure based on your age, weight, height, and activity level. Then use the Calorie Calculator to adjust for your specific goal — whether that is weight loss, maintenance, or gain.
What is the difference between TDEE and BMR?
BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest just to keep basic functions running. TDEE (Total Daily Energy Expenditure) takes your BMR and multiplies it by an activity factor to account for movement, exercise, and daily activities.
How should I split my macros?
A balanced starting point is roughly 30% protein, 40% carbohydrates, and 30% fat. However, the ideal split depends on your goals. Use the Macro Calculator to choose from presets like high-protein, low-carb, or ketogenic, or create a custom split that fits your needs.
How much protein do I need per day?
Protein needs vary by activity level. Sedentary adults need about 0.8 g per kg of body weight, while those doing strength training may need 1.6-2.2 g per kg. The Protein Intake Calculator provides a personalized recommendation based on your weight and activity.
How much water should I drink daily?
A general guideline is about 30-35 mL per kg of body weight, plus additional water for exercise and hot climates. The Water Intake Calculator factors in your weight, activity level, exercise duration, and climate to give you a personalized recommendation.