Calories Calculator
Estimate daily calorie intake (TDEE & BMR) for weight loss or muscle gain. This calories calculator is built for quick health calculations with clear inputs, instant results, and page content that explains what each answer means. The formula section below shows the exact calculation method so you can verify the result.
Calories Calculator Engine
Estimate daily calorie intake (TDEE & BMR) for weight loss or muscle gain.
How Calories Calculator Is Calculated
\text{BMR} = 10w + 6.25h - 5a + sExplanation: Mifflin-St Jeor formula where w is weight (kg), h is height (cm), a is age, and s is gender constant (+5 male, -161 female).
Worked Calculation Examples
| Scenario | Result | Calculation Step |
|---|---|---|
| 30yo Male, 80kg, 180cm, Moderately Active | 2,735 kcal/day | Maintenance calories are 2,735 kcal. For weight loss, aim for ~2,235 kcal. |
How to Use the Calories Calculator
- Open the Calories Calculator and enter the values requested in the input fields.
- Check the units, percentages, dates, or time periods before reading the answer.
- Review the instant result and adjust any value to compare another scenario.
- Use the formula, example, and FAQs below to understand how the calories calculator works.
Frequently Asked Questions
How many calories should I eat to lose 1 pound per week?
A deficit of 500 calories per day (3,500 per week) yields approximately 1 lb of fat loss weekly.
How do I use this calories calculator?
Enter the known values, review the units or settings, and the calculator updates the result instantly. The formula and example on this page show how the answer is produced.
What does the Calories Calculator calculate?
Estimate daily calorie intake (TDEE & BMR) for weight loss or muscle gain. It is designed for fast browser-based calculations without sign-up, downloads, or manual spreadsheet setup.
What formula does this calories use?
This page uses the formula shown in the calculation section: \text{BMR} = 10w + 6.25h - 5a + s. The explanation below it defines the key inputs in plain language.
Is this calories calculator free to use?
Yes. Calculate Like A Pro pages are free online tools and do not require an account to calculate or compare results.
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Last updated: August 14, 2026.