Running cost is the question every fleet buyer opens with and the one most brochures answer badly, usually by quoting a best case as though it were an average. The sum itself is not complicated. It is the price of a unit of electricity, multiplied by the units the vehicle takes to cover the distance.
What we will not do here is print a figure per kilometre. The tariff you pay is not the tariff the depot down the road pays, domestic and commercial supply are not the same rate, and a number that ignores both is marketing rather than arithmetic. Take your own last bill and the sum is a minute of work.
The other half of the comparison — what the vehicle costs to have, rather than to move — is on the EMI calculator, which works in instalments rather than in fuel. Between the two you can get to a monthly figure that is yours instead of somebody else’s.