Calorie Calculator: Daily Calorie Intake for Wei...
Calculate your daily calorie needs based on your activity level and goals. Learn the science behind calorie deficits, maintenance, and surpluses for weight loss o...
What is a Calorie Calculator?
A calorie calculator estimates how many calories you need each day to achieve your specific weight goal — whether you want to lose weight, gain muscle, or maintain your current physique. It combines your BMR with an activity multiplier and goal-based adjustment.
🍎 Calorie Calculator
Use our free calculator for instant, accurate results.
📐 Formula
TDEE = BMR × Activity Factor
Sedentary: ×1.2 | Lightly Active: ×1.375 | Moderately Active: ×1.55 | Very Active: ×1.725 | Extra Active: ×1.9
📝 Worked Example
BMR = 1,800 kcal, Moderately Active:
TDEE = 1,800 × 1.55 = 2,790 kcal/day (maintenance)
For weight loss (−500 kcal): Target = 2,290 kcal/day
📝 How to Use the Calculator
❓ FAQ
How fast is safe weight loss?
A deficit of 500 kcal/day yields ~0.5 kg per week — considered safe and sustainable by most dietitians.
Should I count calories from drinks?
Yes. Liquid calories (juice, alcohol, soda) add up significantly and many people forget to track them.
Veer Kumavat
Founder & AuthorVeer is a 14-year-old student from Nashik, Maharashtra, who built SciFi Calculators to help students worldwide master STEM subjects. He is passionate about making complex science and math problems accessible through intuitive digital tools.