An Alfred Workflow

Short Description

Convert between different units. No Internet connection required.

Last Updated

15 Jun 2017


Mountain Lion
Snow Leopard
Yes Yes Yes Yes Yes



Bundle ID



Convert between different units in Alfred 2.

Alfred-Convert uses a built-in library to do the conversion offline.

Note: Currency conversions do require occasional Internet connectivity to update exchange rates. Alfred-Convert will otherwise work just fine without an Internet connection.


The syntax is simple: the quantity, the unit you want to convert from then the unit you want to convert to. For example:

  • conv 128 mph km
  • conv 72in cm
  • conv 100psi bar
  • conv 20.5 m/s mph

It doesn't matter if there is a space between the quantity and the units or not. Alfred-Convert will tell you if it doesn't understand your query or know the units.

Actioning an item (selecting it and hitting ) will copy it to the clipboard. Using ⌘+L will display the result in Alfred's large text window, ⌘+C will copy the selected result to the clipboard.

Use convinfo to view the built-in help file, view/search the list of supported currencies, change the number of decimal places shown in conversions, or edit your custom units.

Supported units

Currently, Alfred-Convert only supports the units understood by the underlying Pint library plus currencies and a handful of additional units.

Custom units

You can add your own custom units using the format defined by Pint. Add your definitions to the unit_definitions.txt file in the workflow's data directory.

To edit this file, enter convinfo in Alfred and select Edit Custom Units. The unit_definitions.txt file will open in your default text editor.

Supported currencies

Over 150 currencies are supported. See the full list on GitHub.