Calorie Calculator

Calculate your daily calorie needs and macronutrient requirements for weight loss, maintenance, or gain. Features multiple BMR formulas and supports both metric and imperial units.

Personal Information

Ages 15 - 80

feet
inches
pounds
Exercise: 15-30 minutes of elevated heart rate activity.
Intense exercise: 45-120 minutes of elevated heart rate activity.
Very intense exercise: 2+ hours of elevated heart rate activity.

Enter your details to calculate calorie needs.

Food Energy Converter

The following converter can be used to convert between Calories and other common food energy units.

=
4.184

Common Conversions:

  • 1 Calorie (kcal) = 4.184 Kilojoules (kJ)
  • 1 Calorie (kcal) = 1,000 calories (cal)
  • 1 Kilojoule (kJ) = 1,000 joules (J)

Frequently Asked Questions About Calorie Calculations