How is monthly vehicle cost calculated?
Fuel or charging alone rarely reflects the full recurring cost of using a vehicle. This calculator adds vehicle tax, insurance, maintenance, inspections, tire wear, parking, tolls and any other recurring costs you enter.
The loan or finance payment is kept separate because its principal portion is not simply a consumed operating expense. The calculator therefore reports monthly cash outflow including finance as a second result.
How is cost per kilometer calculated?
Monthly operating and ownership cost before finance is divided by monthly distance. This is useful for comparing usage levels, but because depreciation is excluded it is not a complete economic cost per kilometer.
How does the EV battery reserve work?
Battery replacement is not a fixed monthly bill, so the reserve is off by default. If enabled, the tool spreads the replacement-cost assumption across the estimated battery life.
If both distance and calendar life are entered, the earlier expected threshold is used. For example, if the distance limit would be reached in 6 years but calendar life is 8 years, the reserve is spread across 6 years. This is only a planning assumption.
What is not included in this vehicle-cost estimate?
This page focuses on recurring usage and ownership costs. Purchase price, depreciation, opportunity cost of capital, loan principal/interest breakdown, unexpected major repairs and accident-related costs are not calculated automatically.
The result is therefore a monthly cost and cash-flow view based on the items you enter, not a complete economic total-cost-of-ownership figure.
Scenario analysis
After calculation, this table compares the current inputs with simple what-if scenarios such as a 10% higher energy price, 20% more monthly driving and the finance payment ending. These are mathematical scenarios, not forecasts or advice.
| Scenario | Monthly cost before finance | Monthly cash outflow incl. finance | Cost per kilometer |
|---|---|---|---|
| Waiting for calculation. | |||
Frequently Asked Questions
How is monthly vehicle cost calculated?
The calculator adds the monthly share of annual and periodic costs, tire wear and other recurring costs to energy use. Finance payments are shown separately as cash outflow.
Why is the finance payment shown separately from the main cost?
The full payment is not a consumed operating expense; part of it may be principal financing the vehicle. The tool therefore separates operating cost from monthly cash outflow.
Is vehicle depreciation included?
No. This calculator does not estimate depreciation or the opportunity cost of capital.
Do I have to enable the battery reserve?
No. It is completely optional and intended only as a planning reserve.
How do I calculate cost per kilometer?
Monthly operating and ownership cost before finance is divided by monthly distance.
What is monthly income used for?
It is used only to show monthly cash outflow as a percentage of income; the calculator does not label the vehicle affordable or unaffordable.