ROI & FinanceSeptember 2025· 8 min read

How to Calculate the ROI of Fleet Telematics

A practical framework for heavy machinery operators.

How to Calculate the ROI of Fleet Telematics

The ROI from fleet telematics is typically 5–15x the annual subscription cost for heavy machinery operators. But "typically" isn't good enough when you're making a business case to your CFO or board. This guide gives you a practical framework for calculating the specific ROI for your fleet.

Use our interactive calculator: Rather than working through the maths manually, use the Pacific Fleet Systems ROI Calculator — enter your fleet size, asset types, and current fuel costs, and get a personalised ROI estimate in 60 seconds.

The Three ROI Drivers

Fleet telematics ROI comes from three primary sources: fuel savings, maintenance savings, and utilisation improvements. Each can be calculated independently and added together for a total ROI figure.

1. Fuel Savings

Fuel is typically the second-largest operating cost for heavy machinery operators after labour. CAN bus telematics enables fuel savings through two mechanisms: idle time reduction and fuel reconciliation.

Idle Time Reduction

The industry average idle time for heavy machinery is 25–35% of total engine hours. With a structured idle time reduction programme (operator coaching, policy implementation, progress tracking), most operators achieve 15–20% idle time within 3 months — a reduction of 10–15 percentage points.

Idle Time Reduction Calculation
Fleet size: 20 machines
Average engine hours per month: 180 hours
Current idle time: 30% = 54 idle hours/machine/month
Target idle time: 18% = 32 idle hours/machine/month
Reduction: 22 hours/machine/month
Fuel consumption at idle: 8L/hour (20-tonne excavator)
Fuel cost: AUD $1.80/litre
Monthly saving: 22 × 8 × $1.80 × 20 machines = $6,336/month
Annual saving: $76,032

Fuel Reconciliation

Fuel reconciliation — comparing fuel issued to machines vs fuel consumed according to ECU data — typically identifies 3–8% of fuel that is unaccounted for (theft, spillage, or incorrect allocation). For a 20-machine fleet consuming $500,000 of fuel per year, a 5% reconciliation saving is $25,000/year.

2. Maintenance Savings

Reactive maintenance costs 3–5x more than planned maintenance. Moving from reactive to planned maintenance through telematics-driven service scheduling and fault code monitoring typically saves $3,000–$8,000 per machine per year.

Maintenance Saving Calculation
Fleet size: 20 machines
Average reactive maintenance incidents before telematics: 3/machine/year
Average cost per reactive incident: $6,000 (parts + labour + downtime)
Reduction in reactive incidents with telematics: 60%
Annual saving: 20 × 3 × $6,000 × 60% = $216,000

3. Utilisation Improvements

Identifying and redeploying underutilised assets — or making informed decisions to hire out or dispose of them — generates significant value. A 20-machine fleet with 3 machines averaging below 40% utilisation may have $150,000–$300,000 in idle capital that could be redeployed or recovered.

Total ROI Calculation

20-Machine Fleet — Annual ROI Summary
Idle time reduction saving$76,032
Fuel reconciliation saving$25,000
Maintenance saving$216,000
Total annual saving$317,032
Annual telematics cost (20 × $35 × 12)$8,400
Net annual benefit$308,632
ROI37x

These figures are conservative estimates based on industry averages. Your actual ROI will depend on your current idle time, maintenance programme, and fuel costs. Use our interactive ROI calculator to get a personalised estimate for your fleet.

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