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Mifflin-St Jeor equation

The My Fitness System Calorie Calculator utilizes the Mifflin-St Jeor equation to estimate your required daily caloric intake based on your:

  • Fitness Goals
  • Sex
  • Size (Height & Weight)
  • Age
  • Level of Activity

We all have a different lifestyle and genetic makeup, so there is no single calorie calculator that is 100% perfect for everyone. However, the My Fitness System team has brought this FREE tool to our community to help you achieve your weight loss goals!