lib/earth/conversions_ext.rb in earth-0.12.0 vs lib/earth/conversions_ext.rb in earth-0.12.1

@@ -57,9 +57,11 @@
 Conversions.register :megajoules_per_square_metre_hour,     :kbtus_per_square_foot_hour,              (1.megajoules.to(:kbtus) / 1.square_metres.to(:square_feet))
 Conversions.register :megajoules_per_room_night,            :kbtus_per_room_night,                    (1.megajoules.to(:kbtus))
 Conversions.register :million_btu_per_barrel,               :megajoules_per_litre,                    (1_000_000.btus.to(:megajoules) / 1.barrels.to(:litres)) # Fuel
 Conversions.register :btus_per_cubic_foot,                  :megajoules_per_cubic_metre,              (1.btus.to(:megajoules) / 1.cubic_feet.to(:cubic_metres)) # Fuel
 Conversions.register :teragrams_per_quadrillion_btu,        :grams_per_megajoule,                     (1_000_000_000_000 / 1_000_000_000_000_000.btus.to(:megajoules)) # Fuel
+Conversions.register :kilometres_per_hour,                  :miles_per_hour,                          1.kilometres.to(:miles)
+
 
 # Odd units for EPA fuel economy guide
 # Conversions.register :epa_gallon_gasoline_equivalents,          :kilowatt_hours,                        33.705
 # Conversions.register :epa_gallon_gasoline_equivalents,          :cubic_metres_compressed_natural_gas,    3.587
 # Conversions.register :epa_gallon_gasoline_equivalents,          :kilograms_hydrogen,                     1.012