Foam Density and ILD Converter Foam Density and ILD Converter US Density (lb/ft³): US ILD (lbf): Vietnam Density (kg/m³): Vietnam ILD: Example US Density (lb/ft³): 2.5 US ILD (lbf): 33 Vietnam Density (kg/m³): 40.05 Vietnam ILD: 39.60 Round values US Density (lb/ft³): 2.5 US ILD (lbf): 33 Vietnam Density (kg/m³): 40 Vietnam ILD: 40
