Unit Converter Ultimate是一款单位换算工具，包括:- Temperature (celsius, fahrenheit, kelvin, etc)- Length (kilometer, miles, meter, yard, feet, etc)- Mass/Weight (kilogram, pound, ounce, ton, stone, etc)- Speed (km/h, mph, knot, etc)- Area (square kilometer, square mile, hectare, acre, etc)- Cooking Volume (teaspoon, tablespoon, cup, pint, quart, ounce, etc)- Pressure (kilopascal, bar, PSI, etc)- Power (watt, kilowatt, horsepower, etc)- Energy (joule, calorie, BTU, etc)- Time (year, month, day, hour, second, etc)- Fuel Consumption (miles per gallon, liters per 100km, etc)- Digital Storage (bit, byte, megabytes, gigabytes, etc)