12+ Tools

Fitness Calculators

Free, instant fitness and nutrition calculators powered by scientifically-backed formulas.

Calculate your Body Mass Index and find your ideal weight range.

Find your daily calorie needs for weight loss, maintenance, or gain.

Get your ideal protein, carb, and fat split based on your goals.

Calculate how much water you need daily based on weight and activity.

Estimate your body fat percentage using the US Navy method.

Calculate your Basal Metabolic Rate — calories burned at rest.

Find your Total Daily Energy Expenditure including activity level.

Find your ideal weight using 4 scientifically-backed formulas.

Calculate your lean body mass using multiple proven formulas.

Get your recommended daily protein intake for your goals.

Calculate your one-rep max and get a full percentage chart.

Estimate calories burned for 25+ exercises and activities.

AI-Powered Tools

Get a personalized weekly diet plan powered by AI based on your goals and preferences.

Generate a custom weekly workout routine tailored to your fitness level.

Plan your weekly meals with balanced nutrition and variety.

Generate healthy recipes that match your dietary needs and preferences.