Cost per mile is the single most useful number in fleet finance. It turns a pile of separate costs into one figure you can compare across vehicles, routes, and time. Here is how to calculate it, what belongs in it, and how to use it.
The Cost Per Mile Formula
The basic formula is simple: cost per mile = total operating cost divided by total miles driven, over the same period. The work is in capturing all the costs and the accurate mileage. Do both and you have a number you can trust.
What to Include
- Fuel and energy: fuel card spend and EV charging.
- Maintenance and repairs: servicing, parts, and tires.
- Fixed costs: leasing or depreciation, insurance, and licensing.
- Other: fines, tolls, and admin.
Some fleets separate fixed cost per mile (leasing, insurance) from variable cost per mile (fuel, maintenance). Both views are useful.
A Worked Example
A van that costs 24,000 to run over a year and drives 30,000 miles has a cost per mile of 80 cents. Run the same calculation across the fleet and the differences between vehicles, and the leaks inside them, become visible.
How to Use Cost Per Mile
- Compare vehicles. Spot the assets that cost far more than their peers.
- Price work accurately. Know your true cost before quoting a route or contract.
- Time replacements. Rising cost per mile is a clear replacement signal.
- Track trends. Watch cost per mile over time to catch creep early.
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How Fleevo Calculates Cost Per Mile
Fleevo connects fuel, maintenance, fines, and finance data and matches it to mileage from telematics, so cost per mile is calculated automatically per vehicle and kept current, rather than rebuilt in a spreadsheet each quarter. That makes it easy to compare vehicles and act on the outliers. Explore Fleet TCO, or read the full guide to total cost of ownership.
Cost Per Mile FAQs
What is a good cost per mile for a fleet?
It varies widely by vehicle type, region, and use, so the useful comparison is against your own vehicles and the trend over time, not a single benchmark. The goal is to find and fix the outliers.
What is the difference between cost per mile and TCO?
Total cost of ownership is the full lifecycle cost of a vehicle. Cost per mile is that cost divided by miles driven, which makes vehicles and routes directly comparable.
How do you reduce cost per mile?
Cut the biggest variable costs first, usually fuel and maintenance, catch waste and overbilling, and replace vehicles whose cost per mile has climbed past the fleet average.
