Calorie Needs Calculator
Estimate how many calories your body needs each day based on your age, gender, height, weight, and activity level. This tool gives a general daily calorie estimate for maintenance.
What This Calculator Estimates
This calculator estimates your daily calorie needs for weight maintenance. It first calculates your Basal Metabolic Rate, also called BMR, and then adjusts it based on your activity level.
Your BMR is the number of calories your body needs at rest to support basic functions like breathing, circulation, and temperature control.
Formula Used
This tool uses the Mifflin-St Jeor Equation, a widely used formula for estimating calorie needs.
Male: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) + 5
Female: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) − 161
Daily calorie needs are then estimated by multiplying BMR by your selected activity factor.
Important Note
This result is only an estimate. Real calorie needs can vary based on body composition, metabolism, hormones, health conditions, and personal goals.
If you need a more accurate nutrition or weight management plan, speak with a qualified healthcare professional or registered dietitian.
Disclaimer
This calculator is provided for general informational purposes only and should not be considered medical or nutritional advice.