Calorie Calculator

Estimate maintenance calories, calorie targets, and starter macros for maintenance, fat loss, or lean gain goals.

Calorie Calculator

Estimate maintenance calories, calorie targets, and starter macros from one body profile

Unit system
Sex
Goal

Body profile

yrs
kg
cm
This calculator uses the Mifflin-St Jeor equation for adults to estimate basal metabolic rate, maintenance calories, and a starting calorie target. Macro targets are simple planning defaults, not medical nutrition advice.

Target calories

2,056

Target based on Fat loss with a Moderate routine.

Maintenance calories

2,556 kcal/day

Daily adjustment

-500 kcal/day

Estimated weekly change

-0.45 kg/week

BMR

1,649 kcal/day

Current weight

70 kg

Height

175 cm

Starter macro split

Protein

126 g

Carbs

262 g

Fat

56 g

Planning guidance

A larger deficit can speed up fat loss, but hunger, recovery, and training quality usually become harder to manage.

Moderate: Moderate training or physical activity 3 to 5 days per week.

Frequently Asked Questions

How are the calorie targets estimated?

The calculator first estimates basal metabolic rate with the Mifflin-St Jeor equation, then scales that to maintenance calories using the selected activity level. It applies a fixed daily calorie adjustment based on your chosen goal to create a starting target.

Are the macro targets personalized?

Not fully. Protein, carbohydrate, and fat targets here are starter planning values based on body weight and goal. Real macro needs vary with training, dietary preference, health conditions, and appetite.

Will the weekly weight change happen exactly as shown?

No. The weekly change is a rough estimate based on energy balance using about 7,700 kcal per kilogram. Real-world changes vary with water retention, training, adherence, and metabolic adaptation.

Should I use this instead of a doctor or dietitian?

No. This is a practical planning tool, not medical advice. Use it as a starting point, then adjust based on actual progress and seek professional guidance when needed.

Share this page