Porosity Calculator
Calculate porosity, void fraction, and solid fraction
Porosity Calculation
Density excluding pores (helium pycnometry).
Sample Materials
Formulae
ε = (1 - ρ_bulk/ρ_true) × 100%
ε = (V_total - V_solid)/V_total × 100%
Pharmaceutical Significance
- • Affects dissolution rate
- • Influences powder flow
- • Impacts compression
- • Affects drug loading
Porosity Scale
0–10%:Very Low
10–25%:Low
25–40%:Medium
40–60%:High
60–100%:Very High