🍎 Calorie Calculator

Estimate your daily calories using proven BMR formulas with activity multipliers and goal presets

Calculate Your Daily Calories
Based on BMR, activity, and goal. Inspired by calculator.net but modernized.

Used only for Katch-McArdle.

Your Daily Energy Needs
BMR
1705 kcal
TDEE (selected activity)
2643 kcal
Maintenance
2643 kcal
By Activity Level
Multipliers align with common guidance like calculator.net [Mifflin, Harris-Benedict, Katch-McArdle].
Sedentary (little or no exercise)
× 1.2
2046 kcal
Light (1-3 days/week)
× 1.375
2344 kcal
Moderate (3-5 days/week)
× 1.55
2643 kcal
Active (6-7 days/week)
× 1.725
2941 kcal
Very Active (hard exercise daily)
× 1.9
3240 kcal
Extra Active (very hard exercise/physical job)
× 2
3410 kcal
Goals
500 kcal ≈ 1 lb/week. Do not reduce more than 1000 kcal/day.
Mild gain (+250)
2893 kcal
Gain (+500)
3143 kcal
Mild loss (-250)
2393 kcal
Loss (-500)
2143 kcal
Extreme loss (-1000)
1643 kcal

Share Your Results

Quick examples

  • Male, 30 yrs, 180 cm, 75 kg, Moderate activity, Mifflin St Jeor → see BMR, TDEE, and goal ranges.
  • Female, 25 yrs, 165 cm, 60 kg, Light activity, Harris-Benedict → compare with Mifflin formula.
  • Male, 35 yrs, 5 ft 10 in, 170 lb, Very active, Katch-McArdle with 18% body fat → switch to Imperial.
  • Female, 28 yrs, 160 cm, 55 kg, Sedentary, Mifflin St Jeor → view all activity levels and weight goals.

Tip: Switch between formulas to compare estimates, and use the activity table to see calorie needs by lifestyle.

Frequently Asked Questions

What is this calculator used for?

This calculator helps you perform specific calculations quickly and accurately. Each calculator is designed with a user-friendly interface to solve particular types of mathematical, financial, or health-related problems.

Is my data stored or tracked?

No, all calculations are performed locally in your browser. We prioritize your privacy and don't store or track any of your personal data. Your information never leaves your device.

How accurate are the results?

Our calculators use industry-standard formulas and algorithms to ensure high accuracy. However, for critical financial, medical, or legal decisions, we recommend consulting with a qualified professional.

Can I use this calculator offline?

Yes! CalcBuddy is a Progressive Web App (PWA) that works offline. After your first visit, you can use all calculators even without an internet connection.

Is this calculator free to use?

Absolutely! All calculators on CalcBuddy are completely free to use with no hidden fees, subscriptions, or advertisements. We believe in providing valuable tools to everyone.

How do I report an issue or suggest improvements?

We appreciate user feedback! You can contact us through our support channels to report bugs, suggest new features, or request additional calculators.

Free online calorie calculator. All calculations happen locally in your browser for privacy.