A broker offers a high rate for 800 loaded miles. The truck, however, is 120 miles from pickup. After delivery, the nearest sensible freight opportunity might be another 100 miles away. The quoted rate did not change, but the miles required to earn it did.
That is the economics of deadhead: empty miles can make a superficially attractive load a poor decision, and they can also be a rational cost of reaching a better market. The carrier has to model both the immediate trip and what happens after delivery.
This guide is for U.S. owner-operators, dispatchers and small carriers making pre-dispatch decisions. All worked prices and rates below are hypothetical calculations, not current load-board quotes or nationwide industry averages.
Open the free Load Profitability Calculator to enter your own linehaul, deadhead, operating costs and target margin. The tool estimates a load’s economics; it does not predict future freight availability or guarantee collection.
What counts as deadhead in trucking?
A truck is deadheading when it travels without revenue-generating freight on board. The Federal Highway Administration describes tracking empty versus revenue-earning miles as an important motor-carrier performance measure in its freight performance research. In everyday dispatch work, the term can cover several different situations.
| Empty movement | Example | Include in the dispatch estimate? |
|---|---|---|
| Empty miles to pickup | Drive from last delivery to the new shipper | Yes, if attributable to this load |
| Empty positioning after delivery | Move toward the next probable freight market | Yes, if included in the trip decision |
| Empty return to a home terminal | Return after the last delivery | Allocate to the relevant trip or operating period |
| Unloaded travel for maintenance | Move to a repair or inspection site | Count in business miles and cost records; allocate consistently |
| Personal-use movement | Movement not attributable to the carrier’s business | Keep separate from business-mile analysis |
There is an important accounting distinction here. A carrier might allocate post-delivery repositioning to the load just completed, to the next load, or to a weekly lane analysis. Any consistent method can be useful for management, but do not charge the same miles to two trips and then overstate your total business cost.
Two deadhead percentages that are easy to confuse
A carrier completing 800 loaded miles and 120 empty miles drives 920 total business miles.
Deadhead share of total miles = empty miles ÷ (loaded miles + empty miles) × 100.
For this trip: 120 ÷ 920 × 100 = 13.0%.
A different figure is empty-to-loaded ratio = 120 ÷ 800 × 100 = 15.0%. Both ratios are mathematically valid, but they answer different questions. Do not call both figures your “deadhead percentage” without stating the denominator.
The total-mile share is generally more useful when reconciling odometer miles, utilization and carrier-level operating costs. The empty-to-loaded ratio can be helpful when assessing how many extra miles must be driven to service a paying movement.
Report deadhead against the same time window
A week with two loads and a long empty return should be measured using the whole week’s loaded and business-empty miles, not the easiest individual leg. If 1,900 miles earned linehaul revenue and 350 miles were empty, the week’s empty share is 350 / 2,250, or 15.6%. Averaging separate trip percentages without weighting by their distances can be misleading.
Keep an actual mileage log and compare it with your planning assumption after dispatch. Carrier-specific empty-mile rates vary; the FHWA notes that much of the underlying operating data is tracked internally by fleets. An industry average is not a substitute for your own routes and load patterns.
The full-cost formula for deadhead miles
For a load comparison, use the same fully allocated cost definition on every mile:
Total business miles = loaded miles + empty miles attributed to this movement.
Estimated total cost = total business miles × all-in cost per total business mile + extra trip costs excluded from that rate.
Estimated load profit = expected linehaul + reasonably collectible accessorial revenue − estimated total cost.
Revenue per total mile = total expected revenue ÷ total business miles.
These equations answer a full-cost sustainability question: is this load adequately compensating the carrier for its share of operating costs? They are not identical to an incremental decision in which the equipment, driver and fixed overhead are already committed and only a few extra costs would change. We examine that distinction below.
The American Transportation Research Institute publishes operating-cost research covering categories such as fuel, equipment, labor, insurance and maintenance. Its 2026 report reports a 2025 industry-average operating cost of $2.336 per mile. That is a historical research benchmark across surveyed operations—not a universal quote, a rate floor, or the proper input for every carrier. In the following example we deliberately use a separate hypothetical carrier cost to keep the math transparent.
Worked example: the rate stays the same but profit falls
Assume the carrier uses the following illustrative dispatch inputs:
| Item | Example |
|---|---|
| Contract linehaul | $2,300 |
| Accessorials reasonably expected to be collected | $100 |
| Total expected revenue | $2,400 |
| Loaded miles | 800 |
| All-in cost per total business mile | $1.72 |
| Additional trip-only costs outside that per-mile rate | $90 |
| Target profit margin | 15% of revenue |
Now hold the revenue and loaded route constant and vary only empty positioning miles.
| Deadhead miles | Total miles | Deadhead share | Total estimated cost | Estimated profit | Revenue per total mile |
|---|---|---|---|---|---|
| 0 | 800 | 0.0% | $1,466 | $934 | $3.00 |
| 100 | 900 | 11.1% | $1,638 | $762 | $2.67 |
| 120 | 920 | 13.0% | $1,672.40 | $727.60 | $2.61 |
| 200 | 1,000 | 20.0% | $1,810 | $590 | $2.40 |
| 300 | 1,100 | 27.3% | $1,982 | $418 | $2.18 |
| 400 | 1,200 | 33.3% | $2,154 | $246 | $2.00 |
At 120 deadhead miles, the cost is 920 × $1.72 + $90 = $1,672.40. Estimated profit is $2,400 − $1,672.40 = $727.60, a margin of approximately 30.3%.
At 400 empty miles, profit falls to $246, even though the broker still pays $2,300 in linehaul. The load’s stated rate per loaded mile remains $2.875, but the effective revenue per total mile falls to $2.00. The additional empty distance is consuming revenue that looked profitable when viewed only against loaded miles.
This sensitivity table is not a prediction. For example, actual fuel economy, tolls and driving time can vary by route. Use the Load Profitability Calculator for a decision estimate based on your equipment rather than relying on these illustrative values.
What is the maximum deadhead for a target profit margin?
The empty-mile limit depends on revenue, fully allocated operating cost, non-mile expenses and the margin you demand. One way to solve for the largest number of empty miles is:
Maximum empty miles = [(expected revenue × (1 − target margin) − extra trip costs) ÷ all-in cost per total mile] − loaded miles.
Using the example above with revenue $2,400, a 15% desired margin, $90 extra trip costs, $1.72 per mile and 800 loaded miles:
- Revenue left for costs at a 15% margin: $2,400 × 0.85 = $2,040.
- Remove separately counted trip costs: $2,040 − $90 = $1,950.
- Maximum total miles: $1,950 ÷ $1.72 = 1,133.72 miles.
- Subtract loaded miles: 1,133.72 − 800 = 333.72 empty miles.
If actual dispatch miles are whole numbers and assumptions hold, 333 deadhead miles meets the target; 334 slightly exceeds that full-cost ceiling. If the calculation is negative, the load is below the desired margin even with zero deadhead. If the carrier changes prices, pay assumptions or expenses, the threshold changes too.
This is a planning limit, not a legal or operational cap. It also assumes the expected $100 accessorial can actually be collected.
Do empty miles cost the same as loaded miles?
Not necessarily in every individual cost category. A lighter truck may consume fuel differently, and certain wear, toll and route costs depend on equipment configuration and terrain. But driving empty still requires time, equipment, insurance and eventual maintenance. It is therefore unsafe to price empty movement at zero simply because no freight is on board.
For a full-cost dispatch comparison, apply a consistent fully allocated per-total-mile figure to both loaded and deadhead distances unless you have credible separate cost curves. If your business tracks truly different loaded and empty variable costs, keep fixed and variable costs distinct and allocate them only once.
As an example, do not take a $1.72 all-in cost-per-mile figure containing diesel, then add a second $0.60-per-mile diesel expense to deadhead. That counts fuel twice. Conversely, a fuel-only comparison that ignores wages, vehicle ownership, insurance and maintenance is not a sustainable full-cost load calculation.
See the complete cost-per-mile guide for a consistent model, and the fuel surcharge guide for the difference between compensating for diesel price changes and covering the entire trip.
A backhaul can be rational without being a high-margin load
Suppose the truck has already delivered and would otherwise reposition 180 miles empty to a promising next market. A broker instead offers a short paying move with some overlap. The right choice depends on whether accepting that move changes the remaining route, delivery deadline, ability to book the next load and the vehicle’s cash outlay.
Evaluate at least two views:
Full-cost view: Does the offered move cover a sensible allocation of total operating cost, including business miles and a fair return to the owner? This protects long-term sustainability and avoids pricing below the business’s true economic needs.
Incremental decision view: Relative to what the truck would do otherwise, how much extra collectible revenue is gained, how many extra miles and hours are created, and what additional cash costs result? Costs that will occur in either scenario should not be counted as incremental to only one option.
For example, if accepting a backhaul pays $420, adds 90 miles compared with the original repositioning plan and generates $55 of additional non-mile costs, then at an illustrative incremental variable cost of $0.85 per additional mile, the estimated change in contribution is $420 − (90 × $0.85) − $55 = $288.50 before accounting for any lost opportunity at the next market. That positive contribution is not the same as $288.50 of full-cost business profit; allocated fixed expenses remain the business’s responsibility.
Avoid using that variable $0.85 rate in the main full-cost calculator unless you specifically want an incremental perspective and document the distinction. Compare equipment time, appointment reliability and the possibility of missing a better load.
How should an owner-operator negotiate a rate with deadhead?
First, calculate the loaded-mile headline rate and the total-mile revenue rate. These are different negotiations. If linehaul is $2,300 for 800 loaded miles, the nominal loaded-mile linehaul is $2.875. With 120 deadhead miles and $100 collectible accessorials, total expected revenue of $2,400 over 920 miles produces a total-mile rate of approximately $2.61.
Next, use the real trip-cost calculation to find break-even and the revenue needed to meet your target margin. Do not assume a fuel surcharge automatically compensates you for deadhead: only the contractual surcharge terms determine which miles are eligible for payment.
Finally, document the terms. Confirm appointments, accessorial conditions, detention and any agreed deadhead compensation in the rate confirmation or other binding agreement before dispatch. A request for more linehaul may be more appropriate than an unsupported separate deadhead charge.
Practical dispatch checklist: before accepting the load
Record the origin of the truck, not just the shipper’s zip code. Estimate the empty trip to pickup. Estimate whether the delivery location will require a likely repositioning move. Use reasonable, not optimistic, assumptions when the next freight opportunity is uncertain.
Check that loaded miles, deadhead miles, all-in CPM, driver costs and extra trip expenses use one consistent accounting basis. Decide whether accessorial revenue is supported by the contract and whether fuel surcharge is additional to linehaul or already included in the offered amount. Compare several realistic options by changing one assumption at a time.
Once the load is delivered, reconcile planned and actual miles using your own dispatch, odometer or ELD data as appropriate. Review which forecast assumptions failed and whether the lane deserves a higher required rate in future. The goal is not to eliminate every empty mile, but to make their cost visible before accepting the next trip.
Calculate your load profit, including deadhead miles →
Sources and interpretation
The FHWA freight performance measures research describes the importance of tracking empty business miles. ATRI’s operational-cost research provides industry comparisons, while the EIA diesel price series provides a public fuel-price reference. None can determine the right rate for an individual load without that carrier’s operating costs, commercial contract and anticipated route.
All worked dollar amounts here are illustrative. This is an operational planning guide, not a promise of current freight prices, tax advice or a determination of contractual payment rights.