California Bearing Ratio (CBR) Calculator
Subgrade strength for road and pavement design (IS 2720 Part 16)
kg
kg
âšī¸ Standard loads: 1370 kg at 2.5mm penetration, 2055 kg at 5.0mm penetration. Use whichever CBR value is higher (typically 2.5mm), unless the 5mm test is repeated and confirmed higher.