Daily Calorie Calculator

Based on your personal stats and activity level,
using the Mifflin-St Jeor equation.

yrs
kg
cm
Please fill in all fields before calculating.
Your daily calorie goal
calories per day
BMR
Basal Metabolic Rate
TEF
Thermic Effect of Food
Activity multiplier
Based on your exercise level
TEE
Total Energy Expenditure

This is your estimated daily calorie requirement for weight maintenance. These figures are a guide based on population averages and should be used alongside personalised nutritional therapy advice. Individual needs may vary.

Step 2 — Calorie goal and macros

First, select your calorie goal. Then set your protein target. Fat stays fixed at 1g per kg. Carbohydrates adjust automatically.

Adjusted daily calorie target

Higher protein reduces carbohydrates. Lower protein increases them. Fat remains at 1g per kg throughout.

Protein multiplier
2.0 g per kg
1.01.21.41.61.8 2.02.22.42.6
Protein
grams
Carbs
grams
Fat
grams
Calorie split
Protein
Carbs
Fat

Fat is fixed at 1g per kg of body weight. Protein and carbohydrate targets adjust based on your multiplier. These are daily targets to be distributed across meals. Individual requirements may vary.

Step 3 — Meal by meal breakdown

Your daily macro target split across four meals using your standard percentage splits: breakfast 25%, lunch 30%, snack 15%, dinner 30%.

Meal Protein Carbs Fat Calories
🌅Breakfast
☀️Lunch
🫐Snack
🌙Dinner
Daily total

These figures are a guide. Meal splits can be adjusted based on training schedule, appetite, and individual preference. Consult your nutritional therapist for personalised guidance.

Step 4 — Daily hydration target

Based on your body weight and activity level, using 35ml per kg as the baseline with an upward adjustment for higher activity.

litres of water per day
Base requirement
35ml × body weight
Activity adjustment
Additional for exercise
Total daily target
In millilitres
Approx. glasses
Based on 250ml glass
Hydration guidance
  • Spread your intake evenly across the day rather than drinking large amounts at once.
  • Increase intake on training days, in hot weather, or if you consume caffeine or alcohol.
  • Urine colour is a useful indicator — pale straw yellow is the target.
  • Herbal teas and water-rich foods count toward your daily total.
  • If you experience headaches, fatigue, or poor concentration, check your hydration first.

These figures are a general guide. Individual hydration needs vary based on health conditions, medications, climate, and other factors. Consult your nutritional therapist for personalised advice.