Quickly converts units: • Length: mile, yard, foot, mile, meter, decimeter, centimeter and millimeter. • Weight: lb, oz, milligram, gram, kilogram and tonne. • Temperature: celsius, farenheit, kelvin, rankine, newton, Reaumur and Romer. • Volume: Gallon, fluid ounces, cubic meter and liter. • Area: hectare, square meter and square foot. • Time: nanosecond, microsecond, millisecond, second, minute, hour, day, week, month, year. • Speed: meter per second, miles per hour, kilometers per hour, foot per second, knot, mile per second, miles per second, the speed of light and speed of sound. • Pressure: pound / square inch, pound / square foot, atmosphere, bar, inches of mercury, centimeter of mercury, kg / square meter and pascal.