Cost per Vehicle Calculator
Fleet budgets are approved as one large annual number and defended one vehicle at a time. This calculator divides the total the way the questions actually arrive: per vehicle, per month, per kilometre, and per vehicle that is genuinely available to work.
Your numbers
Everything you own or lease, including the ones parked at the back.
Long-term VOR, awaiting parts, awaiting disposal, or nobody to drive them.
Book depreciation, or purchase minus resale spread over the holding period.
Include the excess you actually paid on claims, not just the premium.
Workshop labour, parts, tyres, third-party invoices and roadside recovery.
Yard, workshop, telematics, fleet admin salaries. The costs the fleet causes.
Total odometer distance for the year, all vehicles combined.
Result
Cost per vehicle per year
39,800
Total fleet cost divided across 45 vehicles on the books.
- Cost per vehicle per month
- 3,317
- Cost per available vehicle per year
- 43,683
- Cost per kilometre
- 0.471
- Total fleet cost
- 1,791,000
- Fixed cost
- 941,000
- Variable cost
- 850,000
- Fixed share of total
- 52.5 %
The formula
- Fixed cost = Depreciation + Finance + Insurance, tax and licensing + Fleet overhead
- Variable cost = Fuel and energy + Maintenance, tyres and repairs
- Total fleet cost = Fixed cost + Variable cost
- Cost per vehicle per year = Total fleet cost ÷ Vehicles on the books
- Cost per vehicle per month = Cost per vehicle per year ÷ 12
- Available vehicles = Vehicles on the books − Vehicles not available to work, never below zero
- Cost per available vehicle per year = Total fleet cost ÷ Available vehicles
- Cost per kilometre = Total fleet cost ÷ Distance across the fleet
- Fixed share = (Fixed cost ÷ Total fleet cost) × 100
Assumptions and limits
- This is a fleet average. It hides the range, and the range is the useful part: a mixed fleet's average describes no vehicle in it, which is why the figure is safe to report and dangerous to plan with.
- Driver wages are excluded. They follow the route and the shift rather than the vehicle, and adding them makes the cost per vehicle move when your rota changes.
- The result is retrospective. It divides money already spent and cannot tell you what an extra vehicle would cost, because most of the overhead line does not scale one vehicle at a time.
- Everything is annual. A fleet that grew or shrank mid-year is being divided by a vehicle count that was never true for the whole period.
- Fixed and variable are split by category, not by behaviour. Some maintenance is fixed by calendar rather than by distance, and it is sitting in the variable half.
- Currency is unit-agnostic. Enter every field in one currency and read every result in it.
The number that survives a budget meeting
Nobody outside the fleet has any feel for what a fleet should cost. Present an annual total and it is either a large number or a very large number, and the discussion goes nowhere useful. Present the same total as a cost per vehicle per month and everyone in the room suddenly has an opinion, because it is a figure they can compare to something they understand.
That is the point of this division. It does not create information. It converts a number that invites suspicion into a number that invites a question, and the questions are where the useful conversation starts.
Cost per vehicle owned versus cost per vehicle working
Every fleet has vehicles that exist without working. The one waiting eleven weeks for a gearbox nobody can source. The two held for a contract that was never signed. The one with a damaged body that has been quoted twice and repaired never.
Those vehicles depreciate, they are insured, and they occupy yard space. They simply produce nothing. Dividing total cost by the vehicles on the books spreads their cost quietly across the working fleet and makes every working vehicle look more expensive than it is.
The cost per available vehicle output separates the two. The gap between the figures is the price of the parked ones, and seeing it stated is usually what finally gets a disposal signed off.
Reading the fixed share before you cut anything
The fixed share tells you what happens if work dries up. A fleet where most cost is fixed keeps spending almost the same when volume falls by a third, because depreciation, finance, insurance and the yard do not notice that the vehicles are parked. A fleet that is mostly fuel and maintenance breathes with demand.
This matters most when someone proposes a cut. Cancelling a route removes fuel and some maintenance. It removes none of the fixed half, which continues in full against a smaller amount of work, so the cost per kilometre gets worse and the saving is a fraction of what the route's total cost suggested.
Look at the fixed share first, then decide what a cut can actually achieve. If the answer is uncomfortable, the lever is fleet size or utilisation, not activity.
Frequently asked questions
Usually not, and this calculator leaves them out. Wages attach to shifts and routes, not to chassis. Include them and a vehicle that is double-shifted looks twice as expensive as an identical vehicle on a single shift, which is precisely backwards, since the double-shifted one is the better-used asset. If you need the fully-loaded figure for pricing, calculate driver cost separately and add it at the trip level.
Costs that exist because the fleet exists and would go away if the fleet did. Yard rent, workshop tooling and consumables, telematics subscriptions, and the salaried fleet and compliance staff. Do not put general company overhead in there. If you are apportioning the finance department's cost across departments, that is an accounting exercise, and it will make this figure impossible to compare with anything.
Only if they run the same vehicles doing the same work under the same accounting policies, which they do not. Depreciation policy alone can move the figure substantially between two identical fleets. The comparison that works is against yourself: this year against last year, this depot against that depot, using the same definitions on both sides.
Because a rate card is usually built on variable cost and this figure includes everything, including vehicles that barely moved. Low-distance vehicles carry the same fixed cost as high-distance ones and spread it over far fewer kilometres. If your fleet mixes urban multi-drop with trunking, the blended cost per kilometre is an artefact of the mix rather than a measure of efficiency.
The same arithmetic runs continuously in Fleet Analytics, but the inputs come from the system rather than from your recollection. Maintenance cost arrives from closed work orders, fuel from transactions and sensors, availability from actual VOR status rather than a count someone did in the yard last Thursday. The value is not the calculation. It is that the number is current and the same one everybody sees.
Stop estimating. Measure it.
Cost per Vehicle Calculator gives you the arithmetic. Fleet Analytics Software gives you the live numbers from your own fleet.