Unit conversion
You must find a conversion factor for each unit you wish to convert. For example:
1 km = 0.69 mile; 1 hr = 60 min
1 kg = 1000 grams; 1 metric tonne = 1,000 kg
1 cm = 0.01 m; 1 in = 2.54 cm
1 dozen = 12 individual items
1 hr = 60 min; 1 min = 60 seconds.