What is the Calorie Calculator?
Estimate daily calories to maintain your weight, with gentle targets for gradual loss or gain. Our health and fitness calculators use validated, published equations — such as Mifflin-St Jeor for metabolic rate and the U.S. Navy method for body fat — to give you a solid starting point for training and nutrition.
How to use the Calorie Calculator
- Enter your sex, your age, your weight, your height and the remaining fields.
- Results update automatically as you type; you can also press Calculate.
- Read the output: maintain weight, gradual loss (≈0.25 kg/week), gradual gain (≈0.25 kg/week).
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With sex = Female, age = 30 years, weight = 65 kg, height = 165 cm, activity level = Light (1–3 days/week), the Calorie Calculator returns maintain weight: 1,884 kcal/day; gradual loss (≈0.25 kg/week): 1,609 kcal/day; gradual gain (≈0.25 kg/week): 2,159 kcal/day.
Tips for better results
- Equations estimate population averages; your individual numbers may differ.
- Track trends over weeks rather than reacting to a single reading.
- Pair calculators with professional guidance for medical conditions, pregnancy or major diet changes.
⚠️ This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.
Frequently asked questions
What does the Calorie Calculator do?
Estimate daily calories to maintain your weight, with gentle targets for gradual loss or gain.
How is it calculated?
The Calorie Calculator uses this method: Maintenance = BMR × activity factor; ~7,700 kcal ≈ 1 kg of body weight.
Can you show an example?
With sex = Female, age = 30 years, weight = 65 kg, height = 165 cm, activity level = Light (1–3 days/week), the Calorie Calculator returns maintain weight: 1,884 kcal/day; gradual loss (≈0.25 kg/week): 1,609 kcal/day; gradual gain (≈0.25 kg/week): 2,159 kcal/day.
Is the Calorie Calculator accurate?
It uses standard published formulas and is tested against known values, but results are estimates for guidance. This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.
Is this tool free and private?
Yes — the Calorie Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
Related tools
📬 Get new tools first — free
Join Taurang to hear about new calculators, converters and features. No spam; unsubscribe anytime.