Every truck has a rate below which the load costs the owner money. That rate is your break-even rate per loaded mile. If you know it, a bad offer is easy to turn down. If you do not, you find out at the end of the month.
Break-even is not the same as cost per mile
Cost per mile is what it costs to move the truck one mile, loaded or empty. Break-even rate is what a paid mile has to bring in to cover all of your miles, including the ones nobody pays for.
The formula is short: divide your cost per mile by the share of your miles that are loaded.
- Cost per mile (all miles)
- $2.31
- Empty miles
- 12%
- Loaded share of miles
- 88%
- Break-even rate
- $2.31 ÷ 0.88 = $2.63 per loaded mile
In this example a load paying $2.50 a mile loses 13 cents on every loaded mile, even though $2.50 is higher than the cost per mile. That gap is where owner-operators get caught.
What empty miles do to your rate
Empty miles are not free. You still burn fuel and you still make the truck payment. The more of them you run, the more each loaded mile has to earn. For the same example truck:
- No empty miles
- $2.31 break-even
- 10% empty
- $2.57 break-even
- 12% empty
- $2.63 break-even
- 20% empty
- $2.89 break-even
- 30% empty
- $3.30 break-even
Going from 10% to 20% empty raises the rate this truck needs by 32 cents on every loaded mile. A load that pays well but leaves you 300 miles from the next pickup may be worse than a cheaper one that does not.
How to use it on a real load
- Add the loaded miles and the empty miles to the pickup.
- Multiply all of those miles by your cost per mile. That is what the load costs you to run.
- Compare that with what the load pays. If the pay is lower, the load loses money.
- If it is close, counter. Your target rate times the loaded miles is a fair number to ask for.
The calculator's load checker does this for you: enter the pay, the loaded miles and the empty miles, and it answers take it, negotiate or pass, with a counter-offer.
Break-even is the floor, not the goal
A truck that only breaks even has nothing left for a breakdown, a slow week or a late-paying broker. Add a profit margin on top. At 10%, the example truck's $2.63 break-even becomes a target of about $2.92 a loaded mile. Book at or above your target when you can, and treat your break-even rate as the line you do not go under.
These are example numbers for one dry van running 2,500 miles a week, 48 weeks a year, with 12% empty miles, diesel at the Midwest average for the week of October 5, 2026 ($6.29 a gallon), a $2,400 truck payment, a $600 trailer payment, $14,000 a year for insurance and $70,000 a year of take-home pay for the owner. Your numbers will be different, which is the whole point of running them.