1 inch (Palec) = 2,54 cm 1 mile = 1,6 km
1 kg = 2,2 lb 10 kg = 22 lb 50 kg = 110 lb
1 US gallon = 3,78543 litru
10°C = 50°F 20°C = 68°F 30°C = 86°F 40°C = 104°F