Cost Per Mile Calculator

Cost per mile is the total cost of running your truck divided by the miles you drive. Owner-operators use it to know the minimum rate they must charge per mile to keep the business alive: fuel, maintenance, tires, insurance, depreciation, tolls and other costs, all converted to a single dollars-per-mile figure.

Fuel CPM is fuel price divided by MPG; every other cost is converted to per-mile the same way (a $12,000 yearly insurance bill spread over 120,000 miles is 10 cents per mile). Total CPM is the sum of all components. Worked example: diesel at $4.00/gal and 6.5 MPG gives 61.54 cents fuel CPM; adding maintenance 15.00, tires 4.50, insurance 10.00, depreciation 15.00, tolls 2.08 and other 2.50 cents gives 110.62 cents per mile, or $1.11/mi.

The IRS standard mileage rate (72.5 cents per mile for January–June 2026, raised to 76 cents effective July 1, 2026) is a tax deduction rate for business use of a personal vehicle, not your truck's real operating cost. An owner-operator's true CPM includes fuel, tires, depreciation and insurance and is usually much higher; the worked example on this page comes out to 110.62 cents per mile. Never quote freight rates off the IRS rate.

Required rate per mile equals total CPM divided by (1 minus your target profit margin). With a $1.11/mi cost and a 10% target margin, you must charge $1.11 / 0.90 = $1.23 per mile. Anything below your total CPM loses money on every mile; anything between CPM and the required rate covers costs but misses your profit target.

Variable costs scale with miles: fuel, maintenance and tires. Fixed costs stay the same whether you run 60,000 or 120,000 miles: insurance, depreciation, permits and licenses. Because fixed costs are spread over annual miles, your CPM falls as you run more miles, which is why this calculator asks for annual mileage.

They raise your true cost per loaded mile, because costs accrue on every mile, loaded or not. This calculator spreads fixed costs over all annual miles you enter. As a rule of thumb, if 15% of your miles are deadhead, your effective CPM on loaded miles is roughly your total CPM divided by 0.85, so include empty miles in your annual mileage figure.

There is no universal number; it depends on your truck, fuel prices, insurance and how many miles you run. Industry surveys commonly land around $1.50 to $2.00+ per mile all-in for a semi-truck operation. Treat any published average as a sanity check only and compute your own CPM with your own numbers, which is exactly what this calculator does.

A road trip calculator answers 'how much will this one trip cost' for a personal car: fuel plus tolls, hotels and food. This tool answers a business question: 'what rate per mile must my trucking operation charge?' It amortizes yearly fixed costs like insurance and depreciation into every mile and adds a target profit margin to give you a break-even rate. For personal trip math, use our road-trip-cost-calculator instead.