Units to Convert	Amount		Result
	Length	Inches to Millimetres Millimetres to Inches Feet to Millimetres Centimetres to Inches Metres to Yards Yards to Metres Miles (statute) to Kilometres Kilometres to Miles Miles (nautical) to Kilometres
	Temperature	Fahrenheit to Celsius Celsius to Fahrenheit Celsius to Kelvin
	Speed	MPH to Km/h Km/h to MPH
	Mass	Grains to Grams Grams to Ounches/options> Ounces to Kilograms Pounds to Grams Kilograms to Pounds Stones to Kilograms Kilograms to Stone Hundredweights to Kilograms Tons to Kilograms Metric Tonnes to Tons Tons to Metric Tonnes
	Area	Square Inches to Square Millimetres Square Centimetres to Square Inches Square Feet to Square Centimetres Square Decimetres to Square Feet Square Yards to Square Metres Square Metres to Square Yards Square Yards to Acres Acres to Hectares Square Miles to Square Kilometres Square Kilometres to Square Miles
	Volume	Cubic Inches to Cubic Centimetres Cubic Centimetres to Cubic Inches Cubic Inches to Litres Cubic Feet to Cubic Metres Cubic Feet to Litres Cubic Yards to Cubic Metres Cubic Metres to Cubic Yards
	Energy	Foot Pound Force to Joule British Thermal Unit to Kilojoules Therm to Megajoule Kilowatt Hour to Megajoule Kilocalorie to Kilojoule