Calorie deficit: what is “safe” per day?

A calorie deficit is essential for weight loss, but it's important to maintain a safe rate that supports health without slowing metabolism or causing extreme hunger.

Calories calculator

Nutrition
Use your estimated TDEE
Typical sustainable range: 10–25%
Used for protein target

Target calories
kcal/day
Estimated weekly loss
kg/week
Assumes 7,700 kcal per kg
Protein target
g/day
Uses 1.6 g/kg
Estimates only; consult a professional for personalized advice. See Disclaimer.

How the estimate works

For most adults, a daily calorie deficit of around 500 calories is considered safe and sustainable. This can lead to approximately one pound (or half a kilogram) of weight loss per week. To determine your personal safe limit, consider factors like age, sex, height, current weight, and activity level. Consulting with a healthcare provider or dietitian for personalized advice is recommended.

How to reduce the cost

FAQ

A very high calorie deficit can lead to nutritional deficiencies, slower metabolism, and increased fatigue.

While you can technically fit any food into your diet, focusing on nutrient-dense foods is better for overall health.

Use a basal metabolic rate (BMR) calculator to estimate your body's energy requirements at rest and adjust based on activity level.

For a general-purpose tool, see: /appliance-electricity-cost-calculator