Cost per Trip Calculator
This one works from the top down. Take everything the fleet spent last month, divide it by the trips that were actually completed, and you get a figure that no route model can argue with — because it reconciles to the bank.
Your numbers
Total fuel for the period, from cards and bulk tank draws.
Servicing, parts, tyres and repairs. Use a monthly average, not one bad month.
Wages, allowances, overtime and employment on-costs for driving staff.
Depreciation or lease, finance, insurance, licensing and road tax.
Dispatch, workshop staff, yard, systems. The cost of running the operation.
Completed trips in the same period. Define a trip once and stick to it.
Fleet-wide distance for the period, loaded and empty.
Result
Cost per trip
450.63
Total spend for the period divided by 320 completed trips.
- Total spend
- 144,200 per month
- Variable cost per trip
- 205.31
- Wage cost per trip
- 118.75
- Fixed cost per trip
- 126.56
- Average distance per trip
- 462.5 km
- Cost per kilometre
- 0.974
- Fixed share of cost
- 28.1 %
The formula
- Variable spend = Fuel + Maintenance and tyres + Tolls
- Fixed spend = Vehicle fixed costs + Operating overhead
- Total spend = Variable spend + Driver wages + Fixed spend
- Cost per trip = Total spend ÷ Trips completed
- Variable cost per trip = Variable spend ÷ Trips completed
- Wage cost per trip = Driver wages ÷ Trips completed
- Fixed cost per trip = Fixed spend ÷ Trips completed
- Average distance per trip = Total distance ÷ Trips completed
- Cost per km = Total spend ÷ Total distance
- Fixed share of cost = (Fixed spend ÷ Total spend) × 100
Assumptions and limits
- Every trip is treated as identical. It averages a 40 km drop and a 900 km trunk run into one figure, so the output describes the fleet rather than any trip in it.
- Maintenance is lumpy and this model is not. One engine rebuild lands in a single month and drags that month's figure somewhere unrepresentative. Use a rolling average of at least a quarter.
- The trip count is the most abused input on this page. If a multi-drop day counts as one trip in one depot and eleven in another, the two numbers are not comparable and never were.
- Depreciation must be entered as a monthly accrual, not as the month you happened to buy a truck. If you enter cash purchases here the result is meaningless.
- Cost per trip falls when you complete more trips with the same fleet. That is real efficiency, but it also means the figure moves with volume, so a seasonal dip will look like a cost problem when it is a demand one.
Bottom-up costing lies to you politely
Model a route from its distance, hours and fuel burn and you get a clean, defensible number. Then add up every route you ran last month and the total will not match what left the bank. It never does. The gap is the workshop, the yard, the planner, the tyre that failed early, the trip that got re-run because a pallet was refused.
Top-down costing starts from the other end. It takes the money that genuinely left, divides it by the work that genuinely got done, and accepts a cruder answer in exchange for one that reconciles. Both methods are useful. Only one of them is checkable.
Define a trip before you measure it
The denominator decides everything here, and most fleets have never written down what a trip is. Is a multi-drop day one trip or nine? Does an empty repositioning leg count? What about a job that was dispatched, cancelled at the gate and re-dispatched the next morning?
None of these have a correct answer. They have a consistent one. Write the definition down, apply it everywhere, and the figure becomes comparable across depots and across months. Skip that step and you have built a metric whose movements reflect counting conventions rather than performance.
The split matters more than the total
The headline figure is for the board. The breakdown is for whoever has to do something about it. A fleet where fixed cost dominates has a utilisation problem, and no amount of driving more carefully will fix it — the vehicles are simply not doing enough work to carry their own ownership.
A fleet where variable cost dominates has a fuel and wear problem, which is a different department, a different budget and a different conversation. Reading only the total tells you the trips are expensive. Reading the split tells you who to talk to.
Frequently asked questions
Add up every cost the fleet incurred over a period — fuel, maintenance and tyres, tolls, driver wages, vehicle fixed costs and the overhead of running the operation — then divide by the number of trips completed in that same period. The arithmetic is trivial. The work is in making sure the costs and the trip count cover exactly the same window and the same vehicles.
If you want a figure you can compare against your rates, yes. Dispatch, workshop staff and systems exist to move freight, and a trip that covers only fuel and wages is not carrying the operation that makes it possible. Exclude overhead when you are comparing depots on the things a depot manager controls, and say clearly which version you are quoting.
Because the route model prices the trip that was planned and this prices everything that actually happened. The difference includes re-runs, breakdowns, waiting, empty repositioning and overhead that no route sheet carries. A persistent gap is not an error in either method. It is the size of the work your planning does not see.
No, and treating it as a target invites gaming. The figure falls if you count more trips, so a depot that splits a multi-drop day into nine records will look excellent while doing identical work. It also falls if trips get shorter, which may mean nothing more than a change in the freight mix. Watch it alongside cost per kilometre and revenue per trip, never on its own.
The trip count stops being a guess. Trips & Operations records each completed trip with its vehicle, driver, distance and duration, and Fleet Analytics attaches the fuel, maintenance and toll spend to the same records. You get the cost per trip per depot, per lane and per customer, rather than one fleet-wide average that hides all three.
Stop estimating. Measure it.
Cost per Trip Calculator gives you the arithmetic. Trip Management Software gives you the live numbers from your own fleet.