How to Calculate Trucking Cost Per Mile

If you run a truck, your cost per mile is one of the most important numbers in your business. It tells you what it actually costs to move each mile and gives you a baseline for evaluating rates, loads and profit.

What Is Cost Per Mile?

Cost per mile (CPM) is your total operating cost divided by the miles you drive during the period you are measuring.

Cost per mile = Total operating costs ÷ Total miles

For example, if your truck has $8,000 in operating costs and runs 10,000 miles, your operating cost is $0.80 per mile.

Step 1: Separate Fixed and Variable Costs

Start by listing the costs required to keep the truck operating. Fixed costs generally stay relatively stable whether you drive 5,000 or 10,000 miles. Examples include a truck payment, insurance, permits and certain subscriptions.

Variable costs change as you drive. Fuel, maintenance, tires and some tolls are common examples.

Step 2: Calculate Your Total Operating Costs

Add the costs you want included in your operating CPM. Be consistent from month to month so your numbers remain useful for comparison.

Step 3: Track Your Miles

Use actual miles for the same period as your expenses. You can calculate CPM weekly, monthly or annually, but the expense and mileage periods need to match.

Step 4: Calculate Your CPM

Divide total operating costs by total miles. If your costs are $12,500 and you drove 15,000 miles, your operating CPM is about $0.83.

Why CPM Matters

Knowing your CPM helps you evaluate whether a load or rate covers your operating costs. It can also show how changes in fuel prices, maintenance, mileage or fixed expenses affect your business.

For a more complete picture, calculate a profit target in addition to your break-even operating cost. Your required rate may need to cover operating costs, household overhead, taxes and the profit you want the business to produce.

What to Track Each Month

• Loaded and total miles
• Fuel expense and fuel economy
• Truck payment and insurance
• Maintenance and repairs
• Tires and tolls
• Permits and other operating expenses
• Revenue
• Net income and net dollars per mile

Use a Trucking Cost Per Mile Calculator

A spreadsheet can make this process easier by keeping your costs, mileage and profit targets in one place. The Owner-Operator Cost & Profit System is built to calculate trucking cost per mile, fuel costs, operating expenses and profit targets in Excel and Google Sheets.

If you also want to track weekly revenue, expenses and net profit, see the Truck Income & Profit Tracker.

Bottom Line

Your CPM is only as useful as the numbers you put into it. Keep your expense categories consistent, track your miles accurately and review the result regularly. That gives you a clearer operating baseline when evaluating your trucking business.

Put your cost model into practice

Next, read how to track trucking income and expenses and use the weekly owner-operator checklist to keep your inputs current. Compare the available trucking spreadsheets and business tools.