Should I include depreciation?

If you want “true” CPM, include depreciation. If you want operational CPM for coaching, track both: operational CPM (fuel + maintenance + downtime) and all-in CPM (adds depreciation + insurance).

What if miles vary a lot month-to-month?

Use a 3-month rolling average for miles and costs. CPM becomes more stable and useful.

How do I lower CPM fastest?

Common levers include reducing idle time, improving driver behavior, tightening preventive maintenance, and reducing downtime through quicker repairs and better scheduling.

Cost Per Mile Calculator (Free) | Fleet $/Mile Tool | Moto Watchdog

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Free fleet calculator · Powered by Moto Watchdog

Cost Per Mile Calculator (Free)

Calculate your true fleet cost per mile by combining fuel, maintenance, tires, insurance, depreciation, downtime, and overhead into one simple KPI. Use this free tool to benchmark vehicles, find your biggest cost drivers, and identify where your fleet is losing money.

Moto Watchdog helps businesses track vehicles, mileage, trips, driver activity, maintenance, geofences, curfews, and alerts in real time — with GPS trackers that include lifetime data and no monthly subscriptions.

$/mile KPI

Fuel + maintenance costs

Downtime impact

Printable + CSV

No monthly GPS fees

Real-time GPS tracking See vehicles, trips, routes, and job site activity from mobile or desktop.

Maintenance visibility Track mileage and service activity so costly repairs are easier to prevent.

Lifetime data included Pay once for the tracker. No subscriptions, renewal fees, or hidden GPS bills.

Use Calculator View GPS Trackers

1) Inputs

Company (optional)

Timeframe

Miles driven (timeframe total)

Tip: use total miles across your fleet for the selected timeframe.

# of vehicles (optional)

Variable costs (change with usage)

Fuel ($)

Maintenance & repairs ($)

Tires ($)

Tolls/parking ($) (optional)

Fixed costs (exist even if miles drop)

Insurance ($)

Depreciation / lease ($)

If you lease, use lease payments. If you own, estimate depreciation for the timeframe.

Registration/taxes ($) (optional)

Overhead allocation ($)

Admin time, dispatch, yard costs—whatever you want to allocate to fleet ops.

Downtime (optional, but powerful)

Downtime hours

Downtime cost per hour ($)

If you don’t know: estimate gross profit/hour per vehicle.

Notes (optional)

Saved in your browser (localStorage).

Cost Per Mile Summary

Moto Watchdog • Fleet KPI

Company: —

Timeframe: —

Miles: —

Cost per mile

—

All-in ($/mile)

Total cost

—

Sum of all categories

Cost per vehicle

—

If you entered vehicle count

Cost breakdown

Category	Cost	$/mile	Share

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Want to lower your $/mile automatically?

Moto Watchdog helps fleets reduce waste from idling, speeding, detours, missed maintenance, and unnecessary mileage — without monthly GPS subscriptions.

Talk to Moto Watchdog

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Disclaimer: This calculator is for planning/benchmarking. Use your accounting policies for official financial reporting.