Free Calorie Calculator
Estimate your daily caloric requirements based on your biological sex, age, height, weight, and activity level. This tool uses the science-backed Mifflin-St Jeor equation to calculate your Basal Metabolic Rate (BMR) and maintenance calories.
Your Daily Caloric Guidelines
Daily Targets by Fitness Goal
Free Calorie Calculator – Estimate Your Daily Caloric Needs
Use our free Calorie Calculator to quickly estimate the number of daily calories your body needs to maintain, lose, or gain weight. Simply enter your age, gender, height, weight, and activity level to get instant, accurate results powered by the Mifflin-St Jeor equation.
What Is a Calorie?
A calorie is a unit of energy. In nutrition, calories refer to the energy people get from the food and drink they consume, and the energy they use in physical activity. Understanding your daily calorie requirements is a foundational step toward achieving weight management goals, whether you want to shed body fat or build muscle mass.
How the Calorie Calculator Works
This tool first determines your Basal Metabolic Rate (BMR), which represents the minimum number of calories your body needs to function at rest (breathing, circulating blood, and cell production). We use the highly accurate Mifflin-St Jeor basal metabolic rate formula. Because muscle burns more calories than fat, having a higher percentage of lean tissue naturally increases your resting expenditure, while reducing risky visceral fat levels improves cardiovascular and metabolic efficiency.
- For Men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
- For Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161
Once your BMR is calculated, it is multiplied by an activity factor corresponding to your lifestyle to find your Total Daily Energy Expenditure (TDEE). This total is your maintenance calorie baseline.
Calorie Intake Guidelines for Weight Goals
To change your body weight, you must alter your energy balance:
| Goal | Calorie Adjustment | Expected Progress |
|---|---|---|
| Weight Maintenance | Eat baseline TDEE calories | No weight change |
| Mild Weight Loss | Reduce baseline by 250 calories | Lose ~0.25 kg per week |
| Standard Weight Loss | Reduce baseline by 500 calories | Lose ~0.5 kg per week |
| Weight Gain | Increase baseline by 250–500 calories | Gain ~0.25–0.5 kg per week |
Frequently Asked Questions (FAQ)
What is a safe minimum daily calorie intake?
Generally, it is recommended that men consume at least 1,500 calories and women consume at least 1,200 calories daily, unless supervised by a healthcare professional, to prevent nutrient deficiencies and metabolic slowdown.
How many calories should I cut to lose weight?
A safe and sustainable approach is to cut 500 calories per day from your maintenance level, which typically results in losing about 0.5 kg (1 pound) of body weight per week.
Does the calculator account for muscle mass?
The Mifflin-St Jeor equation is highly effective for most individuals but can slightly underestimate calorie needs for athletes with high muscle mass or overestimate needs for individuals with high body fat percentages.
References & Medical Disclaimer
Caloric health definitions and ranges are aligned with guidelines from the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC). The information provided is for educational purposes and should not replace professional medical advice.
Related Health Tools
Once you know your daily calorie needs, check your BMI using our BMI Calculator, analyze your body composition with the Body Fat Calculator, estimate your due date with the Pregnancy Calculator, or track your menstrual cycle using the Period Calculator.