Daily Calorie Needs Calculator

June 8, 2026

This Daily Calorie Needs Calculator helps you estimate how many calories your body needs each day to maintain your current weight based on your activity level.

Daily Calorie Needs Calculator

Gender:

Daily Calorie Formula

Daily calories = BMR × activity factor

Parameters Explained

BMR: Basal Metabolic Rate, the calories burned at rest
Activity factor: reflects your daily physical activity level

How It Works

The calculator multiplies your basal metabolic rate by an activity factor
to estimate your total daily calorie needs.

Ethan Caldwell

Ethan builds the interactive health calculators on Height Growth Blog. Based in Denver, Colorado, he combines a software engineering background with a focus on evidence-based health tech, turning dense clinical guidelines — from CDC growth charts to NIH/IOM dietary references — into tools parents and teens can use in under a minute. Every calculator on the site, from BMI Percentile to Body Fat and Calcium Intake, is built directly from primary sources (NIH, AAP, CDC, Mayo Clinic) and cross-checked against peer-reviewed studies before launch.

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