Now it seems to work properly in metric units, but if you choose linear resistance in the unit ohm per 1000ft, you get a wrong value. It seems to divide the ohm per ft by 1000 instead of multiplying by 1000, so you end up with a value which is 10⁶ (one million) times too small.
I would also find it practical if the last three values under “Application” would have a choice to display in ohms / milliohms, volts / millivolts and watts / milliwatts.