Protein Solubility & Yield Calculator

Protein solubility and purification yield are key metrics in recombinant protein production. Insoluble protein forms inclusion bodies. Typical column purification yields range from 60-90% with purity >95%.

To use the Protein Solubility & Yield Calculator, enter your Total Protein in Sample, Soluble Fraction (%), Purification Yield (%) and other values. The calculator instantly computes Soluble Protein (mg), Purified Protein After Yield and more. Results update in real time as you change any input — no submit button needed.

How to Use This Calculator

Enter your Total Protein in Sample (e.g. 100 in mg), Soluble Fraction (%) (e.g. 65 in %), Purification Yield (%) (e.g. 80 in %), and Initial Sample Volume (e.g. 10 in ml). Results update instantly — no submit button needed. Use metric or imperial units as labeled. For the most accurate result, measure height and weight in the morning without shoes.

The Formula

Soluble Protein = Total Protein × Soluble Fraction %

Purified Protein = Soluble Protein × Purification Yield %

Final Concentration (mg/ml) = Purified Protein ÷ Volume

Worked Example

100 mg total protein, 65% soluble, 80% purification yield, 10 ml volume: Soluble = 65 mg. Purified = 52 mg. Final concentration = 5.2 mg/ml. Recovery: 52%.

Understanding Your Result

Current evidence-based protein recommendations: Sedentary adults: 0.8 g/kg body weight (RDA minimum). Active adults: 1.2–1.6 g/kg. Athletes or those building muscle: 1.6–2.2 g/kg. Older adults (65+): 1.2–1.6 g/kg to counter sarcopenia. The RDA (0.8 g/kg) is the minimum to prevent deficiency — not the optimal intake for body composition or longevity. Protein at each meal (25–40g) maximizes muscle protein synthesis; distribution matters as much as total daily amount.