MuscleRx Calculator Suite

Fitness Calculators

Body composition, metabolism, nutrition, workout, and performance calculators in the same MuscleRx dashboard style as the rest of your tools.

Body Composition & Measurements

BMI (Body Mass Index)

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Category: —

Body Fat Percentage (U.S. Navy Method)

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Enter measurements to estimate body fat percentage.

Waist-to-Hip Ratio

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Health Risk: —

Ideal Weight & Lean Body Mass

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Enter your data to see lean body mass and ideal weight estimate.

Nutrition & Metabolic

BMR (Basal Metabolic Rate)

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Estimated calories burned at rest per day.

TDEE & Calorie Calculator

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  • Fat loss: —
  • Maintain: —
  • Muscle gain: —

Macronutrient Calculator

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  • Protein: —
  • Fat: —
  • Carbs: —

Workout & Performance

One Rep Max (1RM)

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Estimated using the Epley formula.

Target Heart Rate / Zones

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  • Zone 1: —
  • Zone 2: —
  • Zone 3: —
  • Zone 4: —
  • Zone 5: —

Calories Burned

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Estimated from MET values and bodyweight.

Running Pace

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Speed: —

Push-Up Score

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General score band for simple fitness screening.

Lifting Volume

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Total session volume = weight × reps × sets.