Unity is a Safari extension that lets you quickly convert between different units.
It works like this:

  1. 1 Select the number and unit
    you want to convert
  2. 2 Right-click to see
    the converted value
  3. 3 Click on the menu item
    to convert to another unit
Install Unity
v1.2, Safari 5+ only, Chrome coming soon.

Unity knows about:

Length

  • nautical miles (nmi)
  • miles (mi)
  • yards (yd)
  • feet (ft)
  • inches (in)
  • milimeter (mm)
  • centimeter (cm)
  • decimeters (dm)
  • meters (m)
  • kilometers (km)

Volume

  • liters (L)
  • mililiters (ml)
  • teaspoons (tsp)
  • tablespoons (tbsp)
  • fluid ounces (fl oz)
  • cups (cup)
  • pints (pt)
  • quarts (qt)
  • gallons (gal)
  • cubic centimeters (cc)

Area

  • square inches (sq. in)
  • square feet (sq. ft)
  • square yards (sq. yd)
  • square miles (sq. mi)
  • square milimeters (sq. mm)
  • square centimeters (sq. cm)
  • square meters (sq. m)
  • square kilometers (sq. km)
  • acres (ac)
  • hectars (ha)

Speed

  • meters per second (mps)
  • kilometers per minute (kpm)
  • miles per minute (mpm)
  • feet per minute (fpm)
  • kilometers per hour (kph)
  • feet per second (fps)
  • miles per hour (mph)
  • knots (kts)

Weight

  • miligrams (mg)
  • kilograms (kg)
  • grams (g)
  • ounces (oz)
  • pounds (lb)
  • tons (t)

Temperature

  • Degrees Celsius (°C)
  • Degrees Fahrenheit (°F)
  • Kelvins (K)

Coming Soon…

  • timezone conversion
  • currency conversion
  • one-button conversion of all units on a page
  • more units…
Found a bug? Missing a feature? Chime in.

Who made Unity?

Unity is the work of Tisho Georgiev – the brains behind one-man web development shop Point Six and UI designer at FeeFighters. Tisho currently writes code and pushes pixels out of Sofia, Bulgaria, where he lives with his awesome wife and kid. He tweets as @tisho and doesn't blog. Yet.