What is cost per mile in trucking?

Cost per mile (CPM) is total operating cost divided by miles run. It combines fixed costs that accrue whether or not the truck moves (insurance, financing, permits) with variable costs that scale with distance (fuel, tyres, maintenance, wages). Most owner-operators sit between 1.50 and 2.00 dollars per mile all-in.

How do fixed and variable costs differ?

Fixed costs are annual and do not change with mileage, so their per-mile share falls as you drive more. Variable costs are incurred per mile and stay roughly constant per mile regardless of how much you run. Both must be covered to break even.

Why does fuel cost depend on MPG?

Fuel cost per mile equals fuel price divided by miles per gallon. A truck getting 6.5 MPG at 4.00 per gallon costs about 0.62 per mile in fuel. Improving MPG by even half a gallon meaningfully lowers your largest variable cost.

What minimum rate should I charge?

Your minimum rate must cover total cost per mile plus a margin for profit and risk. This tool adds your target margin percentage to the break-even CPM. Never quote below break-even except to reposition the truck out of a dead market.

Should empty (deadhead) miles be included?

Yes. Costs accrue on deadhead miles but generate no revenue, so divide annual costs by total miles including deadhead, or load your rate to cover the deadhead percentage. A 15 percent deadhead rate means loaded miles must carry the cost of empty ones.

Trucking Cost Per Mile Calculator

Knowing your true cost per mile is the difference between profitable freight and slowly going broke on cheap loads. This calculator separates the fixed annual costs that accrue whether you roll or not from the variable costs that scale with every mile, then adds your margin to set a defensible minimum rate.

How it works

Annual fixed costs are spread across miles; variable costs are per-mile direct:

fixed CPM     = (insurance + financing + permits + other fixed) / annual miles
fuel CPM      = fuel price / miles per gallon
variable CPM  = fuel CPM + tyres + maintenance + driver wage + other variable
total CPM     = fixed CPM + variable CPM
minimum rate  = total CPM × (1 + target margin %)

The fixed-cost share shrinks as you run more miles, which is why utilisation is the single biggest lever on owner-operator profitability.

Example and tips

A truck running 120,000 miles a year with 18,000 of fixed costs has a 0.15 fixed CPM. At 6.5 MPG and 4.00 fuel that is 0.62 fuel CPM, plus 0.05 tyres, 0.15 maintenance, and 0.60 driver wage, giving 1.42 variable and 1.57 total CPM. A 15 percent margin sets a minimum rate of about 1.81 per mile. Watch deadhead miles: include them in the denominator or your real CPM will be higher than the loaded figure suggests.