Let Me Convert

Let Me Convert is a simple offline units converter which is always useful to have in your pocket. It has lots of metric and imperial units to convert, so you will be able to quickly convert units for example while watching foreign movie to understand what exactly they talking about or even in case your tire started to descend in the middle of nowhere but you need to convert those 'psi' to 'atm'.
List of units is constantly growing but at the moment you can find next units for conversation:

Area:
-Square inch (in2)
-Square foot (ft2)
-Square yard (yd2)
-Square mile (mi2)
-Acre (ac)
-Hectare (ha);
-Square millimeter (mm2)
-Square centimeter (cm2)
-Square meter (m2)
-Square kilometer (km2)

Data Transfer Rate
-Nibble per second (Nibble/s)
-Bit per second (bit/s)
-Kilobit per second (kbit/s)
-Megabit per second (Mbit/s)
-Gigabit per second (Gbit/s)
-Terabit per second (Tbit/s)
-Kibibit per second (Kibit/s)
-Mebibit per second (Mibit/s)
-Gibibit per second (Gibit/s)
-Tebibit per second (Tibit/s)
-Byte per second (B/s)
-Kilobyte per second (kB/s)
-Megabyte per second (MB/s)
-Gigabyte per second (GB/s)
-Terabyte per second (TB/s)
-Kibibyte per second (KiB/s)
-Mebibyte per second (MiB/s)
-Gibibyte per second (GiB/s)
-Tebibyte per second (TiB/s)

Digital Storage
-Nibble (Nibble)
-Bit (bit)
-Kilobit (kbit)
-Megabit (Mbit)
-Gigabit (Gbit)
-Terabit (Tbit)
-Kibibit (Kibit)
-Mebibit (Mibit)
-Gibibit (Gibit)
-Tebibit (Tibit)
-Byte (B)
-Kilobyte (kB)
-Megabyte (MB)
-Gigabyte (GB)
-Terabyte (TB)
-Kibibyte (KiB)
-Mebibyte (MiB)
-Gibibyte (GiB)
-Tebibyte (TiB)

Energy
-Joule (J)
-Kilojoule (kJ)
-Calorie [th] (cal)
-Kilocalorie [th] (kcal)
-Watt-hour (W·h)
-Kilowatt-hour (kW·h)
-Electronvolt (eV)
-British thermal unit [IT] (BTU)
-Foot-pound force (ft·lbf)

Frequency
-Hertz (Hz)
-Kilohertz (kHz)
-Megahertz (MHz)
-Gigahertz (GHz)
-Revolution per minute (RPM)
-Radian per second (rad/s)
-Degree per second (°/s)

Fuel Economy
-Kilometer per liter (km/L)
-Liter per 100 kilometers (L/100km)
-Mile per gallon US (mpg (US))
-Mile per gallon UK (mpg (UK))

Length
-Millimeter (mm)
-Centimeter (cm)
-Meter (m)
-Kilometer (km)
-Inch (in)
-Foot (ft)
-Yard (yd)
-Mile (mi)
-Nautical mile (M)

Mass
-Carat (ct)
-Milligram (mg)
-Gram (g)
-Kilogram (kg)
-Tonne (t)
-Ounce (oz)
-Pound (lb)
-Stone (st)

Plane Angle
-Radian (rad)
-Degree (°)
-Second ('')
-Minute (')
-Revolution (r)

Pressure
-Bar (bar)
-Pascal (Pa)
-Atmosphere (atm)
-Torr (torr)
-Pound per square inch (psi)

Speed
-Mile per hour (mph)
-Foot per second (ft/s)
-Meter per second (m/s)
-Kilometer per hour (km/h)
-Knot (kn)

Tempreture
-Celsius (°C)
-Fahrenheit (°F)
-Kelvin (°K)

Time
-Millisecond (ms)
-Second (s)
-Minute (min)
-Hour (h)
-Day (d)
-Week (wk)
-Month (mo)
-Year (yr)
-Decade (dec)
-Century (c)

Volume
-Cubic metre (m3)
-Milliliter (mL)
-Litre (L)
-Barrel (oil) (bl)
-Cubic foot (ft3)
-Cubic inch (in3)
-Pint (US fluid) (pt)
-Gallon (US fluid) (gal)