❤️
Free Health & Fitness Online
22 free tools — no signup required
Health and fitness calculators for body metrics, nutrition, and exercise planning. Calculate BMI, body fat percentage, daily calorie needs, macronutrient ratios, heart rate zones, and pace conversions. Track your fitness goals with accurate, science-based calculations.
❤️Health & Fitness
Heart Rate Zone Calculator
Calculate target heart rate zones for cardio training.
🏃Health & Fitness
Running Pace Calculator
Calculate running pace, speed, and finish time for any distance.
🏋️Health & Fitness
One Rep Max Calculator
Estimate your one-rep max from the weight and reps of a set.
🏃Health & Fitness
VO2 Max Calculator
Estimate your VO2 max from running performance data.