Simple Calorie Intake
Simple Calorie Intake: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.
Simple Calorie Intake
Weightkg
Kcal per kg (25 sedentary, 30 moderate, 35 active)kcal/kg
Goal adjustment (− weight loss, + gain)%
Calories per day
2,100kcal
Weight maintenance
2100kcal
Difference from maintenance
0kcal
Assessment
Weight maintenance
More about: Simple Calorie Intake
What it calculates
The “Simple Calorie Intake” calculator computes Calories per day in kcal from 3 parameters: weight (kg), kcal per kg (25 sedentary, 30 moderate, 35 active) (kcal/kg), goal adjustment (− weight loss, + gain) (%).
Used by professionals and patients to assess health metrics, dosages, and risks.
Example calculation
With parameters Weight = 70 kg, Kcal per kg (25 sedentary, 30 moderate, 35 active) = 30 kcal/kg, Goal adjustment (− weight loss, + gain) = 0 % the result is 2,100 kcal.
How to use
- Enter weight, kcal per kg (25 sedentary, 30 moderate, 35 active) and goal adjustment (− weight loss, + gain) — each field above is adjustable with a slider.
- Calories per day (kcal) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is BMI calculated?
BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.
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