Muscle Gain Calculator — Estimate Your Muscle Building Potential

Muscle Gain Calculator

Calculate your muscle gain potential with our comprehensive calculator. Estimate muscle growth based on training frequency, nutrition, and body metrics.

Step 1: Body Metrics

Understanding Body Metrics

Your current weight and body fat percentage help determine your starting point. Beginners typically gain muscle faster than experienced lifters due to “newbie gains.”

Step 2: Training & Nutrition

1 day 7 days
4 days

About Muscle Gain

Muscle growth requires consistent training, adequate protein intake, and a calorie surplus. Natural lifters can expect to gain 0.25-0.5 lbs of muscle per week under optimal conditions.

Muscle Gain Results

Summary
Training Comparison
Breakdown

Estimated Monthly Muscle Gain

0.8 kg
Based on 4 training days/week with 300 calorie surplus
Lean Body Mass
61.5 kg
Weekly Protein Target
135 g/day
Monthly Calorie Surplus
9,000 calories
Training Frequency
4 days/week

Training Frequency Comparison

Training Level Days/Week Monthly Gain Protein Needed

Muscle Gain Progression

Muscle Gain Formula

Monthly Gain = (Training Days × Experience Factor × Calorie Surplus) / 7700

Muscle gain depends on training consistency, nutrition, and experience level. Approximately 7700 calories are needed to gain 1 kg of muscle. Protein intake should be 1.6-2.2g per kg of body weight for optimal muscle synthesis.

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