Fleet Management Software ROI Calculator
Every vendor arrives with an ROI model built from figures you cannot audit. This one is built from figures you can. You supply the spend, and you supply the improvement you would be willing to put your name to. The arithmetic then tells you whether the payback survives your own scepticism.
Your numbers
Only the vehicles that will actually be on the system in year one.
The quoted subscription line, per vehicle, per month.
Devices, fitting, migration and configuration. Everything you pay once.
Match this to the contract term you are being asked to sign.
Take last year's total fuel bill and divide it by vehicle count.
Your assumption, not our claim. We do not publish a number here.
Servicing, parts, tyres and unplanned repairs, averaged per vehicle.
Set this to zero if you are not prepared to defend it in a budget meeting.
Chasing dockets, rekeying data, building the monthly report by hand.
Salary plus on-costs, not the hourly rate on the payslip.
Hours the system takes off the desk. Rarely all of them.
Result
Return on investment
140 %
Net benefit over 3 years, against a total cost of ownership you entered yourself.
- Payback period
- 15.0 months
- Net benefit
- 57,744
- Gross benefit
- 99,024
- Total cost
- 41,280
- Software subscription
- 31,680
- Fuel saving
- 67,200
- Maintenance saving
- 18,720
- Admin saving
- 13,104
The formula
- Software cost = Vehicles × Licence per vehicle per month × 12 × Years
- Total cost = Software cost + One-off setup and hardware
- Fuel saving = Vehicles × Fuel spend per vehicle per year × (Fuel reduction ÷ 100) × Years
- Maintenance saving = Vehicles × Maintenance spend per vehicle per year × (Maintenance reduction ÷ 100) × Years
- Admin saving = Admin hours per week × 52 × Loaded cost per hour × (Admin hours removed ÷ 100) × Years
- Gross benefit = Fuel saving + Maintenance saving + Admin saving
- Net benefit = Gross benefit − Total cost
- ROI = (Net benefit ÷ Total cost) × 100
- Payback = Total cost ÷ (Gross benefit ÷ (Years × 12))
Assumptions and limits
- The three reduction percentages are yours. KO Fleetz does not supply a benchmark here, and the defaults are deliberately modest starting values rather than anything we have measured on your fleet.
- Benefit is treated as flowing evenly from day one. It does not. Nothing changes until devices are fitted, data is trusted and someone acts on an alert, so the real payback point sits later than the figure shown.
- The internal cost of the project is excluded: your time in workshops, cleaning up a vehicle list nobody has maintained, and the fortnight the depot spends arguing about the new process.
- Savings are assumed not to overlap. Better routing and better driving both reduce fuel, and counting each in full double-counts the same litre.
- Admin savings are only real if the freed hours go somewhere useful. If nobody leaves and no backlog clears, that line is a soft benefit, not a cash one.
- Currency is unit-agnostic. Enter every field in one currency and read every result in it.
The savings figure in the proposal is not evidence
Somewhere in every fleet software proposal there is a percentage. It is presented as a finding and it is usually an average of the vendor's happiest customers, drawn from fleets that were badly run before they bought anything. It tells you what is possible for someone else.
The only honest way to run this calculation is to invert the question. Instead of asking what the software will save, ask what improvement you would be prepared to commit to in front of your finance director. Put that number in. If the payback still works, you have a case. If it only works at the vendor's number, you have a brochure.
What software changes, and what it does not
Software does not burn less fuel. It shows you which vehicle burned more than it should have, on which route, on which shift, and it does that while the person responsible can still remember the day. The saving comes from the conversation that follows, which means it depends entirely on whether anyone has that conversation.
This is why fleets with identical systems get different results. The platform is a constant. What varies is whether a supervisor reads the exception list on Monday morning, whether a workshop acts on a fault code, and whether anyone is allowed to change a route once it is drawn.
So the reduction fields on this page are not really estimates of the technology. They are estimates of your own follow-through. Set them accordingly.
Payback period is the number to argue about
A large ROI percentage over five years is easy to produce and hard to trust, because it depends on assumptions about year four that nobody can defend. Payback in months is a harder, more useful question: how long until this stops costing money.
Payback also exposes the shape of the deal. A system with low licences and heavy hardware pays back slowly at first and then well. A licence-only system starts cheaply and never stops charging. Both can end up at the same three-year total by very different routes, and the two are not equally reversible if the project stalls.
Read the payback figure here as optimistic by construction. It assumes benefit starts in month one at full rate, which no rollout has ever done.
Frequently asked questions
Because we would have to invent them. Published fleet software savings figures are drawn from wildly different baselines, and a fleet already running tight will not repeat what a fleet with no controls achieved. The defaults on this page are conservative starting values, there to make the tool render something sensible. Replace them with numbers you can defend, and put zero in any field you cannot.
Look for the gap you can already see. Compare your best driver and your worst driver on the same route, or your fuel purchased against your fuel burned. That difference is the theoretical ceiling. You will not capture all of it, because some of it is terrain, load and traffic rather than behaviour. Take a fraction of the gap you can explain, not the whole gap.
Setup, if you buy the devices outright, along with fitting labour and the depot time lost while vehicles are off the road for installation. If hardware is bundled into the monthly fee, put it in the licence field and leave setup for migration and configuration only. What matters is that it lands somewhere. Hardware is the cost most often left out of these models.
The cost of the project inside your own business. Data cleanup, integration work against a finance system that was never designed to be integrated with, training, and the productivity dip while drivers get used to being measured. It also ignores the risk that the rollout stalls at forty percent of the fleet, which is a common and expensive outcome.
It means the numbers do not rule it out. Some of the strongest reasons to run a fleet platform resist this arithmetic entirely: proving a duty-of-care position after an incident, keeping a contract that requires proof of delivery, or knowing where a vehicle is when a customer is on the phone. None of those produce a saving line, and some of them matter more than the ones that do.
Stop estimating. Measure it.
Fleet Management Software ROI Calculator gives you the arithmetic. Platform gives you the live numbers from your own fleet.