Unit calculator for converting US American units into Metric units

Temperature: Fahrenheit to Celsius
Length: Miles to Kilometers
Length: Feet to Meters
Length: Inch to Centimeters
Area: Squarefeet to Squaremeters
Volume: Gallons to Liters
Weight: Pounds to Kilogramm
Weight: Ounces to Gramm
Consumption: Miles per Gallon to Liters per 100 km
Price: Dollars per Gallon to Euro per Liter
Speed: Feet per Minute to Meters per Second
Pressure: Pounds per square inch to Bar