Health
Calorie Calculator
This calorie calculator estimates daily maintenance calories based on the Mifflin-St Jeor equation. It gives users a practical starting point for planning weight maintenance, loss, or gain.
caloriesBMRTDEEnutritionfitness
Interactive calculator
Enter your scenario
Estimated maintenance calories
2,662.13 kcal/day
Estimated BMR
1,717.5 kcal/day
Activity multiplier
1.55
Results update as you type so visitors can quickly compare scenarios and move into related calculators without friction.
How to use
Simple steps for accurate inputs
Step 1
Enter sex, age, weight, and height.
Step 2
Choose the activity level that best reflects your average week.
Step 3
Use the maintenance estimate as a planning baseline, not a guaranteed prescription.
Formula and method
Mifflin-St Jeor estimate
BMR is estimated as 10 × weight + 6.25 × height − 5 × age + s, where s is +5 for males and −161 for females. Maintenance calories equal BMR multiplied by activity factor.
Frequently asked questions
Is this a maintenance calorie estimate?
Yes. The calculator estimates maintenance calories based on your body metrics and an activity multiplier.
Should I use this instead of medical advice?
No. It is a planning estimate and should not replace personalized guidance from a qualified clinician or dietitian.
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