Calorie Calculator
Estimate daily calories to lose, maintain, or gain weight.
- 100% free
- Private in browser
- No signup
- No watermarks
Daily calories
- Mild loss
- 2,306
- Weight loss
- 2,056
- Mild gain
- 2,806
- Weight gain
- 3,056
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About Calorie Calculator
Calorie Calculator on TheToolss estimates how many calories you need each day for your goal. It calculates your BMR with the Mifflin-St Jeor equation, multiplies by your activity level to get maintenance calories (TDEE), and then shows targets for mild and steady weight loss or gain. Enter your details and pick an activity level to get a clear daily calorie range. It is an estimate, not medical advice. It runs in your browser — free, private, and no signup.
How to use Calorie Calculator
- Enter gender, weight, height, and age.
- Select your activity level.
- Read your maintenance and goal calories.
Key features
- Maintenance (TDEE) calories
- Weight-loss and weight-gain targets
- Mifflin-St Jeor BMR
- Adjustable activity level
- Private in-browser calculation
Frequently asked questions
- Is the Calorie Calculator free?
- Yes. It is free on TheToolss with no signup.
- How are maintenance calories found?
- Maintenance (TDEE) = BMR × activity factor. Eating at this level should keep your weight stable.
- How big should a calorie deficit be?
- A deficit of about 500 calories a day targets roughly 0.5 kg of loss per week. Avoid very aggressive deficits without professional guidance.
- Which activity level should I choose?
- Pick the option that matches your typical week, from sedentary (little exercise) to very active (hard training most days).
- Is this medical advice?
- No. It provides estimates only. Consult a professional for personalized nutrition plans.
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