See how empty movement dilutes loaded RPM, creates real cost, and changes comparisons between freight offers.
Loaded miles are miles traveled while carrying the freight for the offer. Deadhead miles are miles traveled without revenue-producing freight, including movement to pickup and, when modeled, repositioning after delivery. Loaded RPM divides gross revenue by loaded miles; true RPM divides the same revenue by every mile required for the movement.
True RPM is usually lower whenever deadhead exists because the same gross revenue is spread over more miles. It is a better revenue-efficiency comparison than loaded RPM, but it still is not profit. Empty miles also consume fuel, tires, maintenance, equipment life, and time, so the full analysis must compare true revenue with cost across total miles.
Four mileage measures answer different questions
Label each measure when discussing a rate. Saying only “the load pays $3 per mile” is incomplete unless everyone knows which miles are in the denominator. A broker offer may be stated on loaded miles, while the carrier’s business must absorb approach and repositioning miles.
Use the same route boundary when comparing offers. If one load includes only deadhead to pickup while another also includes the likely movement out of a weak destination, the comparison is inconsistent. When repositioning is uncertain, compare a low, expected, and high empty-mile scenario.
| Measure | Calculation | Question answered |
|---|---|---|
| Loaded miles | Miles under freight | How far is the paid freight movement? |
| Deadhead miles | Empty approach + modeled repositioning | How much movement carries no load revenue? |
| Loaded RPM | Gross revenue ÷ loaded miles | What is revenue per paid mile? |
| True RPM | Gross revenue ÷ total miles | What is revenue per mile the truck must move? |
| Empty-mile percentage | Empty miles ÷ total miles × 100 | What share of movement is empty? |
Worked comparison: the lower gross offer can be stronger
Load A is a hypothetical $2,100 offer with 700 loaded miles and 100 deadhead miles. Load B pays $2,000 with 620 loaded miles and 20 deadhead miles. Load A has the higher gross offer, but the all-mile comparison tells a different story.
Load A loaded RPM is $3.00, while true RPM is $2,100 ÷ 800 = $2.625. Load B loaded RPM is about $3.23, and true RPM is $2,000 ÷ 640 = $3.125. Load A is 12.5% empty; Load B is about 3.1% empty.
Assume operating cost of $1.50 per mile and a 5% revenue fee. Load A mileage cost is $1,200 and the fee is $105, leaving estimated profit of $795 before direct costs. Load B mileage cost is $960 and the fee is $100, leaving $940. In this example, the offer with $100 less gross revenue produces $145 more estimated profit because it requires 160 fewer total miles.
| Metric | Load A | Load B |
|---|---|---|
| Gross offer | $2,100 | $2,000 |
| Loaded / empty miles | 700 / 100 | 620 / 20 |
| Total miles | 800 | 640 |
| True RPM | $2.625 | $3.125 |
| Estimated profit | $795 | $940 |
Why empty miles cost more than the fuel receipt
Fuel is the most visible deadhead cost, but it is not the only one. Each empty mile uses tires, maintenance life, equipment capacity, and driver time. Fixed monthly costs also need to be recovered across the miles the business actually travels. Multiplying deadhead miles by a complete operating CPM is therefore a broader economic estimate than multiplying by fuel CPM alone.
Loaded and empty fuel economy can differ. Torz My Truck stores loaded and empty MPG separately, and Load Desk applies the appropriate fuel assumption to each part of the movement. A quick deadhead calculator using one blended CPM is useful for screening, while the connected load analysis gives a more detailed result.
Estimated deadhead operating cost = deadhead miles × operating cost per mileHow to use true RPM without confusing it with profit
True RPM describes gross revenue efficiency. Profit subtracts costs. A true RPM of $2.50 can be strong for one operation and below break-even for another because equipment payments, insurance, MPG, maintenance, fees, and targets differ. Compare true RPM with fee-adjusted break-even and then calculate total estimated profit.
True RPM also ignores time by itself. A short load with multiple appointments and long waits can produce a high all-mile rate but weak revenue or profit per working day. Document expected time separately and preserve any agreed detention or layover terms; do not assume an accessorial will be approved merely because a delay occurs.
Deadhead decisions include what happens next
Some empty movement is necessary to reach suitable freight or return to an operating area. The objective is not a universal zero-deadhead rule. The objective is to know the cost, include it consistently, and ask whether the complete movement advances the business.
Before booking, test the pickup approach and likely exit from the destination. After the trip, record actual deadhead and compare it with the plan. Repeated differences may reveal that the saved lane or profile assumptions need revision. Business Intelligence can summarize actual deadhead across completed trips without rewriting the original load decision.
Common denominator mistakes
- Comparing one offer on loaded RPM with another on true RPM.
- Leaving approach miles out because they occur before the rate confirmation movement.
- Treating fuel-only deadhead cost as complete operating cost.
- Inventing a guaranteed next load to make destination repositioning appear free.
- Counting the same empty miles both inside total miles and as a separate mileage cost.
- Reading true RPM as net revenue or profit after fees.
Related Torz Freight tools
Frequently asked questions
Does deadhead include the drive home after delivery?
Include a post-delivery movement when it is a reasonable part of the decision you are modeling. Label it as repositioning and test alternatives when the next move is uncertain.
Can a load with deadhead still be profitable?
Yes. The question is whether the gross offer covers the cost of all required miles, fees, and direct expenses while meeting the operation’s target.
Why is true RPM not the same as net RPM?
True RPM in Torz is gross revenue divided by total miles. It does not deduct fuel, fees, or operating costs, so it is not a net measure.