GPS Tracking ROI Calculator
Telematics vendors are happy to supply the savings percentage for you. This calculator makes you supply it, because you are the only person who knows what your drivers do now. Everything else — hardware, fitting, subscription, payback — is arithmetic.
Your numbers
Units getting a device. Trailers and plant count if you are tracking them.
Enter 0 if hardware is bundled into the subscription.
Fitter time, and the hour the vehicle is off the road. Plug-in devices are near zero.
Match it to the contract term you are being offered.
Your estimate, not ours. We will not hand you a number here. If you cannot defend it, halve it.
Hours claimed that a timestamped route would not support. Enter 0 if timesheets are already tight.
Time no longer spent ringing drivers, rebuilding routes from memory, or answering 'where is my delivery'.
Result
Return on investment
239 %
Net benefit of 86,840 against total spend of 36,280 over 3 years.
- Payback period
- 1.8 months
- Net benefit over the period
- 86,840
- Annual benefit
- 41,040
- Upfront hardware and installation
- 4,600
- Subscription per year
- 10,560
- Total spend over the period
- 36,280
- Fuel saving per year
- 23,040
- Overtime saving per year
- 15,120
- Admin saving per year
- 2,880
The formula
- Upfront hardware and installation = Vehicles × (Device cost + Fitting cost)
- Subscription per year = Vehicles × Subscription per month × 12
- Total spend over the period = Upfront + (Subscription per year × Evaluation period)
- Fuel saving per year = Vehicles × Fuel spend per month × 12 × (Fuel reduction ÷ 100)
- Overtime saving per year = Vehicles × Overtime hours saved × 12 × Overtime rate
- Admin saving per year = Admin hours saved × 12 × Admin cost per hour
- Annual benefit = Fuel saving + Overtime saving + Admin saving
- Net benefit = (Annual benefit × Evaluation period) − Total spend
- Return on investment = Net benefit ÷ Total spend × 100
- Payback period = Upfront ÷ ((Annual benefit − Subscription per year) ÷ 12)
Assumptions and limits
- The savings percentage is yours. This tool supplies no benchmark for what tracking does to fuel burn, because that depends on how loosely your fleet runs today and a fleet already using driver scorecards has less to gain than one starting from nothing.
- Benefits are assumed to start on day one and hold flat. Neither is true. Fitting a fleet takes weeks, behaviour improves after coaching rather than after installation, and some of the early gain fades once drivers learn what the reports look at.
- Overtime savings are the most contested line here. They only materialise if someone acts on the data, which means a conversation with a driver that a manager has to be willing to have.
- Nothing is discounted. Money in year three is treated as worth the same as money today. Over three years the distortion is modest; over seven it is not.
- The model ignores the costs that do not appear on the quote: SIM and data overage, replacing devices in vehicles sold or written off, and the manager time to read what the system produces.
- Insurance premium reductions, faster stolen-vehicle recovery and fewer customer disputes are excluded because we cannot estimate them for you. If your broker has quoted a figure, the ROI shown here is understated.
The hardware is not the cost
A device is a small one-off. The subscription is the real number, and it compounds quietly. Forty vehicles at twenty-two a month is over ten thousand a year, every year, whether anyone opens the platform or not.
This is why the calculator separates upfront from recurring and reports payback on the upfront alone, net of subscription. If the monthly benefit does not clear the monthly subscription, the payback figure shows zero. That is not a rounding artefact. It means there is no payback, only a bill.
Look at that zero before you look at anything else. A three-year ROI can still print a respectable percentage on a deal that never washes its face month to month.
Where the savings actually come from
Fuel gets the headline and rarely deserves it alone. GPS does not burn less diesel. It shows you an hour of idling outside a depot, a detour through a driver's home town, a vehicle doing a foreigner on a Saturday. The saving arrives when someone acts on that, and not before.
The unglamorous savings are more reliable. Timesheets that no longer need to be taken on trust. The half hour a day the office spends phoning drivers for an ETA. Proof of arrival that ends a detention argument in one screenshot rather than three emails.
That is why the admin line is fleet-wide rather than per vehicle. It is a headcount effect, and it does not scale with the number of trucks.
What ROI cannot capture
A tracking system pays for itself twice in the year a vehicle is stolen and recovered, and delivers nothing measurable in the years one is not. That is real value with no place in an annual model.
The same goes for the dispute you win because the timestamps back you, and the customer you keep because the ETA was right. Nobody logs the invoice that was never queried.
So treat the percentage as a floor rather than a forecast. If the arithmetic already works on fuel and admin alone, the rest is upside. If it only works once you assume a stolen truck comes back, you are building a case backwards.
Frequently asked questions
We will not give you a figure, and we would be suspicious of anyone who does without seeing your fleet. The honest answer is that it depends entirely on how much waste exists now. A fleet with no idling policy and no route discipline has a great deal to gain. A fleet already running driver scorecards has already taken most of it. That is why the field is yours to fill in.
The structural point matters more than the number: hardware is a small upfront cost and the subscription runs forever, so payback on the upfront is usually short and mostly irrelevant. The question that decides the deal is whether the monthly benefit clears the monthly subscription in year three, when the novelty has gone and nobody is looking at the dashboard.
Only if your broker has put it in writing. Some insurers discount for telematics, some require it, and many do neither. This calculator leaves the field out rather than invite an optimistic guess into a business case. If you have a quoted reduction, add it to your annual benefit by hand.
Partly, and be honest about which part. Behavioural gains decay unless someone keeps reviewing the reports and having the awkward conversations. Structural gains — better routing, honest timesheets, no more phoning for ETAs — tend to stick because they change how the work is organised. A flat three-year projection is optimistic on the first and fair on the second.
It would be easier to publish a savings percentage and let you multiply. We would rather you built the case on your own inputs and arrived at a number you can defend to a finance director who will ask where it came from. If the arithmetic says no for your fleet, the arithmetic says no.
Stop estimating. Measure it.
GPS Tracking ROI Calculator gives you the arithmetic. GPS Fleet Tracking Software gives you the live numbers from your own fleet.