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Fuel Economy Calculator is essentially a mileage calculator with conversion among L / 100 km (litres per hundred kilometres) and miles per gallon (U.S. and Imperial). You can enter amounts in any combination of metric and non-metric units, and there is also some basic currency conversion, along with a logging function.

What's New

Version 1.0.1:
  • Calculator automatically quits after closing the main window.
  • Extended all unit prices to display 3 digits after the decimal point, based on early user feedback.
  • Changes to log entry names saved.
  • Window position and log drawer width now preserved between runs.


Mac OS X 10.4 or later

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Fuel Economy Calculator User Discussion

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FrankieD Member IconComment+0

Looks nice ... although I just did it in Excel last Friday. Doesn't look quite as stylish, but includes a few more options like total mileage, total cost etc.

Reply1 reply
Version 1.0.1
ekc (Developer)

Actually, I was thinking of adding an import/export function at some point so that you can save your log data as a tab-delimited table and bring it into Excel.

If you're curious, the log and everything else is actually stored in the net.kos.lgl.ekc.FuelEconomyCalculator.plist preferences file. You can open this using the Property List Editor if you have the dev. tools installed. Everything is pretty self-explanatory in there.
If you muck things up to the extent that F.E.C. no longer runs, though, I won't be held responsible... :)

rumpelstiltskin Member IconComment+2

Elegant, simple .. and works. Me like. 5 stars.

Reply0 replies
Version 1.0
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Current Version (1.x)


Downloads 2,425
Version Downloads 2,101
License Free
Date 22 Oct 2006
Platform OS X / PPC 32 / Intel 32
Price Free
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