Our Forbes Health Calorie Calculator panel of experts recommended this equation for safe, sustainable weight loss. To determine your daily calorie needs to lose weight, the calculator decreases the number of calories you use each day by 25%, resulting in a new recommended daily calorie intake. Calculating Daily Calories To Lose Weight To find this number, the calculator takes your RMR multiplied by your activity factor and multiplies that number by 10%. The thermogenic effect of food makes up the remainder of your daily energy needs (approximately 10%). The calculator then multiplies your RMR by this number.ģ. An activity factor-ranging from 1.2 for people who are sedentary to 1.9 for extremely active people-is assigned based on your physical activity level.

Physical activity burns calories, so athletes need to consume more calories than people who don’t exercise. It calculates your RMR based on your sex, weight, height and age.Ģ. It’s the most reliable formula, according to a review of studies in the Journal of the American Dietetic Association. In this calculator, your RMR is measured using the Mifflin-St Jeor equation.

It can be measured scientifically in a lab or estimated using an equation. Your RMR requires the most energy, far more than physical activity or food processing. Calorie Calculator For Weight Loss And Maintenanceġ. While we work hard to provide accurate and up-to-date information that we think you will find relevant, Forbes Health does not and cannot guarantee that any information provided is complete and makes no representations or warranties in connection thereto, nor to the accuracy or applicability thereof. The compensation we receive from advertisers does not influence the recommendations or advice our editorial team provides in our articles or otherwise impact any of the editorial content on Forbes Health.

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