Free Gym Fitness Calculators (BMI, TDEE, Macros)

Body Mass Index

Body Mass Index (BMI) is a standard measure to classify physical body mass status into Underweight, Normal, Overweight, or Obese categories based on height and weight.

Age (Years)

Gender

Height (cm)

Weight (kg)

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Fill in the form to dynamically compute your BMI rating.

Daily Energy Expenditure

Total Daily Energy Expenditure (TDEE) is an estimation of how many calories you burn per day, incorporating your basal metabolism and daily physical activities.

Age (Years)

Weight (kg)

Height (cm)

Gender

Fitness Goal

Activity Level

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Estimate your daily energy needs and macronutrient distribution.

Cardio Training Zones

Target heart rate zones determine which energy pathway your body uses. Enter your age and resting pulse to map your training zones using the scientific Karvonen method.

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Determine your ideal cardiovascular heart rate training zones.

FITNESS CALCULATORS

Body Mass Index

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Achieve Your Ideal Shape

Daily Energy Expenditure

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Your Macronutrient Split

Reach Your Fitness Goal Faster

Cardio Training Zones

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Target Heart Rate Zones

Train with Heart Rate Sync