🛠️ Free Fitness Tools

Science-based calculators to help you train smarter and achieve your goals

🔥 Calorie Burn Calculator

Activity Type

Weight (kg)

Duration (minutes)

0 calories

That’s like burning off a snack!

Height (cm)

Weight (kg)

Gender

Age (years)

Weight (kg)

Height (cm)

0 calories/day

Calories your body burns at complete rest

Weight (kg)

Activity Level

0 Liters

Estimate your one-rep max

Weight Lifted (kg)

Number of Reps

Running pace per km

Distance (km)

Time (minutes)

Simple circumference method

Waist (cm)

Neck (cm)

Height (cm)