Unit Weight Working Time Length / Distance Volume Units reference Dozens bigger kg reference g smaller Days reference Hours smaller t bigger m reference km bigger cm smaller L 1.0 reference m³ 1000 bigger lb 2.20462 smaller oz 35.274 smaller in 39.3701 smaller ft 3.28084 smaller mi bigger fl oz (US) 33.814 smaller qt (US) 1.05669 smaller gal (US) bigger in³ 61.0237 smaller ft³ 28.3168 bigger