BodyMetricPrecision Health & Fitness

Protein per kg Calculator

Calculate relative protein density per kilogram of body weight

Input Parameters
kg
Real-time calculation updates dynamically as you adjust inputs. Values remain strictly local on your device.
Total Daily Protein1.8 g/kg
135grams/day

For 75 kg body mass (540 kcal)

Clinical Responsibility Note: This calculation provides statistical estimations for informational and educational purposes only. It is not an individualized medical diagnosis or clinical prescription.

Mathematical Formula & Scientific Methodology

Formula: Metric Relative Protein Equation

Protein (g) = Weight (kg) × Rate (g/kg)

Standard international scientific unit for prescribing protein in clinical and athletic nutrition.

Model Assumptions

  • Healthy adult kidney function

Variables & Standard Units

SymbolPhysiological MeaningUnit
RateGrams of dietary protein per kilogramg/kg

Scientific Limitations

  • In clinical severe obesity, calculating per kg of ideal body weight prevents overprescription

Peer-Reviewed Scientific Citations

A reanalysis of the factors influencing basal metabolic rate in normal adults: importance of fat-free mass (1980)

Cunningham JJ (1980) — The American Journal of Clinical Nutrition, 33(11), 2372-2374

Key Finding: Demonstrated that lean body mass accounts for nearly all variance in basal metabolic rate between sexes and ages.

Frequently Asked Questions