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Free Fitness Tools & Calculators

Professional-grade calculators used by thousands of lifters. Get instant results without creating an account.

TDEE Calculator

Calculate your Total Daily Energy Expenditure. Find your maintenance, cutting, and bulking calories.

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Macro Calculator

Get your optimal protein, carb, and fat targets based on your goals and activity level.

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1RM Calculator

Estimate your one-rep max from any weight and rep combination. Uses Epley, Brzycki, and Lander formulas.

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Volume Calculator

Calculate your weekly training volume per muscle group. Track sets against MEV/MAV/MRV landmarks.

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Workout Generator

Generate customized workout plans based on your goals, equipment, and available time.

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BMI & Body Fat

Calculate your BMI and body fat percentage using the Navy method. Track body composition progress.

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These calculators are great for quick estimates. But Arvo's AI tracks your 1RM automatically, adjusts every set in real-time, and manages your volume across training cycles.

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