Free · Browser-Based · Nutrition Estimate

Calorie Calculator

Estimate maintenance calories from basic profile inputs, then compare calorie targets for gradual weight loss, maintenance, or weight gain planning.

Sex

Age

Weight (kg)

Height (cm)

Activity level

Goal

Calorie summary

🎯 Common Use Cases

Estimate maintenance calories

Compare activity levels

Set mild cut or gain targets

Use for everyday meal planning

Which formula is used?

This calculator uses the Mifflin-St Jeor equation for a simple BMR estimate, then multiplies by activity level.

Is this a medical recommendation?

No. It is a general planning estimate, not medical advice.

Does anything leave my browser?

No. All calculations happen locally.