Know Your Cost per Mile
The one number that tells you which loads make money and which ones just keep the wheels turning.
A load board will show you a rate per mile all day long. What it will not show you is whether that rate covers your truck note, your insurance, your fuel, and a paycheck for you. Plenty of owner-operators run hard for a year, stay busy every week, and still come out behind because they never knew what a mile actually cost them.
Your cost per mile (CPM) is the fix. Once you know it, every rate confirmation becomes a simple question: does this load clear my number, or not?
The American Transportation Research Institute's 2026 cost study put the industry average at a record $2.336 per mile in 2025, with about 48 cents of that in fuel. That is a fleet average, not your number. A one-truck operation with a paid-off tractor and a dry van in the Midwest can look very different from a new-truck flatbed running the Northeast. Use ATRI as a gut check, then build your own.
Fixed costs: the bills that come whether you roll or not
Fixed costs show up every month even if the truck sits in the yard. Add them up for a full year, because some (like IRP plates and Form 2290) hit once a year and will wreck a month if you forget them.
- Truck and trailer payments (or lease payments)
- Insurance: primary liability, cargo, physical damage, bobtail or non-trucking liability
- Plates, IRP, permits, UCR, and the heavy vehicle use tax
- ELD subscription, phone, load board, factoring or dispatch fees if they are flat
- Accounting, parking, and any office or yard costs
Variable costs: the bills that grow with every mile
Variable costs rise and fall with miles driven. Fuel is the big one, so figure it as diesel price divided by your real miles per gallon (not the brochure number). At $3.70 a gallon and 6.4 mpg, fuel alone is about 58 cents a mile. Add maintenance and repairs, tires, tolls, and scale tickets. Track maintenance per mile from your actual shop bills; an older truck will cost more here even if the payment is lower.
Deadhead: the miles nobody pays you for
Deadhead is driving empty: to the shipper, back toward home, or out of a dead market. Those miles burn the same fuel and tires as loaded miles. If 15% of your miles are empty, every loaded mile has to carry the cost of the empty ones too. This is why a rate that looks great per loaded mile can be a loser once you count the drive to get there.
Owner story
Marcus runs a 2021 tractor and a 53-foot dry van, about 110,000 miles a year with roughly 15% deadhead. His fixed costs come to about $59,700 a year (truck and trailer notes, $16,800 in insurance, plates and permits, ELD and software), or 54 cents per total mile. Fuel, maintenance, tires, and tolls add 85 cents. That puts his cost at $1.39 a mile before he pays himself a dime. He wants to take home $70,000, which adds 64 cents. His all-in number is about $2.03 per total mile. Because only about 93,500 of his miles are loaded, he needs roughly $2.39 per loaded mile to hit his goal, and $1.64 per loaded mile just to break even with zero pay for himself.
Illustrative composite, not a real customer.
How to evaluate a load in two minutes
Before you accept a rate
- 1
Add the deadhead
Take loaded miles plus the empty miles to reach the shipper. That is the trip's total miles.
- 2
Divide pay by total miles
A $1,900 load with 700 loaded and 120 empty miles pays $2.32 per total mile, not the $2.71 the board shows.
- 3
Compare to your all-in CPM
If it clears your number with your pay included, it builds your business. If it only clears variable costs, it keeps cash moving but does not pay you.
- 4
Check where it leaves you
A strong rate into a dead market can force a long empty run out. Price the next leg before you celebrate this one.
- 5
Count the time
Detention, slow docks, and tight appointments eat hours of service. A shorter load that turns quickly can beat a longer one that strands you.
Try it
Trucking Cost per Mile
Plug in your own fixed costs, fuel, miles, and deadhead to find your break-even and target rates.
Your cost per mile
$1.90
$0.44 fixed + $1.46 variable
Load rate per loaded mile
$2.89
$2.55 across all miles
Minimum to break even
$2.15/mi
per loaded mile, this load
Profit on this load
$666
$1,934 to run it
Where every mile goes
Fixed costs are spread over all miles you drive in a month, so fewer miles means a higher cost per mile. Defaults are illustrative; plug in your own numbers from your settlement statements and fuel card.
Variable-cost loads are a short-term tool
Taking a load that covers fuel and tires but not your fixed costs can make sense to get out of a bad market or keep the truck from sitting. Do it every week and you are slowly paying shippers to haul their freight. Review your mix monthly.
Quick check
A load pays $2,000 for 800 loaded miles, with 200 empty miles to get to the shipper. Your all-in cost is $2.05 per total mile. What is the right read?
Words to know
- Cost per mile (CPM)
- Your total annual costs, including your own pay, divided by every mile you drive.
- Deadhead
- Miles driven without a paying load, such as the trip to a pickup or back home.
- Fixed cost
- An expense that stays the same whether the truck runs or sits, like insurance or a truck payment.
- Variable cost
- An expense that rises with miles driven, like fuel, tires, and maintenance.
Finished reading?
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