How is this calculated?
Total CPM = (fuel + maintenance + insurance + tolls + driver pay + depreciation + permits) / total miles Fuel CPM = diesel price / truck MPG Fuel cost = total miles / MPG * diesel price
Example: 10,000 miles at 6.8 MPG and $4.00 diesel has fuel cost of $5,882. Add $8,500 in other costs and total CPM is about $1.44.
How do I use this calculator?
- Choose the unit or currency setting that matches your vehicle data.
- Enter the required vehicle, route, fuel, weight or loan values in the calculator form.
- Review inline warnings and correct any missing or negative inputs.
- Read the live result card for the primary answer and supporting totals.
- Use the worked example if you want to check the formula with sample values.
- Copy, share or print the results for comparison or record keeping.
What do the terms mean?
- CPM
- Cost per mile, total cost divided by miles.
- Fuel CPM
- Diesel price divided by MPG.
- Depreciation
- Vehicle value loss assigned to the period.
- Fixed cost
- Costs such as insurance that do not vary directly with each mile.
- Variable cost
- Costs such as fuel, tires and maintenance that rise with usage.
What are real-world examples?
| Scenario | Inputs | Result | Notes |
|---|---|---|---|
| Loaded Class 8 | 6.8 MPG, $4 diesel | $0.59 fuel CPM | Before other costs |
| Empty backhaul | 9 MPG, $4 diesel | $0.44 fuel CPM | Fuel only |
| Owner-operator | 10,000 miles, full costs | $1.50-$2.50 typical | Market dependent |
| Urban delivery | Lower MPG, high labor | Higher CPM | Stop-and-go route |
What tips improve accuracy?
- Separate fixed and variable costs to understand break-even loads.
- Use actual IFTA miles and gallons for the most reliable MPG.
- Include unpaid deadhead miles in CPM.
- Track tires and maintenance as cents per mile, not just invoice dates.
- Owner-operator CPM often ranges from about $1.50 to $2.50 before profit.
- Review CPM monthly so fuel price swings do not surprise you.
Did you know? EPA estimates commonly use 8.89 kg CO2 per gallon of gasoline and 10.18 kg CO2 per gallon of diesel for tailpipe carbon dioxide calculations.
Related calculators
Frequently asked questions
Is this calculator free to use?
Yes. The calculator runs in your browser, does not require an account and can be printed or copied for your records.
Can I use this for official tax, loan or compliance filing?
Use it as an estimate. For official filing, financing or enforcement decisions, verify the final numbers with your lender, tax authority, manufacturer rating label or compliance professional.
Why are my real-world results different?
Real vehicles vary with load, speed, terrain, temperature, tire condition, maintenance, driver behavior and measurement quality.
Does the calculator save my units?
Yes. Unit and currency selections that are marked as preferences are stored in localStorage on your device so the next visit starts with your preferred setting.
Can I share the result?
Yes. Use the Share button if your browser supports native sharing, or copy the permalink and result summary.
Does it work on mobile?
Yes. The layout stacks on small screens, keeps labels visible and recalculates as you type.
How accurate are the formulas?
The formulas are standard industry math for estimates. Accuracy depends on the input values and whether the assumptions match your vehicle and jurisdiction.
When was this page updated?
This page was last updated on 2026-05-01 for 2026 planning assumptions and source links.