The single number that decides whether a load makes you money isn't the rate — it's the net RPM. Here's how to calculate it on any DAT One load, and why gross RPM routinely lies to owner-operators.

What is RPM (rate per mile)?

RPM stands for rate per mile. It is a load's total pay divided by its distance. RPM is the great equalizer: it lets you compare a 300-mile regional run against a 1,200-mile haul on the same scale.

A $1,500 load running 1,000 miles has a gross RPM of $1.50. A $900 load running 500 miles has a gross RPM of $1.80. The shorter load pays better per mile — even though the total check is smaller.

Key idea: High total pay does not mean high profitability. A long load with a big rate can still lose money per mile once you account for what it costs to move the truck.

Gross RPM vs. net RPM — the difference that matters

Gross RPM = total pay ÷ miles. It ignores every cost.

Net RPM = (total pay − fuel − tolls) ÷ miles. It strips out the two costs that scale directly with every mile you drive.

This is the number that actually reflects what stays in your pocket. Two loads with identical gross RPM can have very different net RPM because of route tolls and fuel burn differences.

The cost components Load Lens subtracts

When you Ctrl+Click a load, Load Lens estimates two variable costs from the Google Maps driving distance:

1. Fuel

Fuel is typically the largest variable cost per mile. Load Lens divides the trip distance by an assumed miles-per-gallon figure, then multiplies by a current diesel price. This gives an estimated fuel spend for the run.

2. Tolls

Tolls can erase a good rate fast — a single toll road can cost $40–$100+, and they vary wildly by route. Load Lens estimates toll exposure from the driving route so you see the real cost of taking that lane.

What about fixed costs? Truck payment, insurance, and maintenance are real, but they don't change load-to-load the way fuel and tolls do. Net RPM focuses on the variable costs you can actually compare between two loads side by side. Add your own per-mile fixed cost on top if you want a fully loaded number.

Step-by-step: calculate net RPM on any DAT One load

Find the gross rate and miles on the load row.
Estimate fuel cost: miles ÷ your MPG × diesel price.
Estimate tolls for the route.
Compute net pay: gross rate − fuel − tolls.
Divide by miles: net RPM = net pay ÷ miles.

With Load Lens installed, steps 2–5 happen automatically when you Ctrl+Click a highlighted load. You just read the net RPM and decide.

Worked example: comparing two loads

Load A — the long haul

Gross rate: $2,400
Miles: 1,500
Gross RPM: $1.60
Fuel (1,500 ÷ 6.5 mpg × $4.00): ~$923
Tolls: ~$85
Net pay: $2,400 − $923 − $85 = $1,392
Net RPM: $0.93

Load B — the shorter regional run

Gross rate: $1,050
Miles: 520
Gross RPM: $2.02
Fuel (520 ÷ 6.5 mpg × $4.00): ~$320
Tolls: ~$15
Net pay: $1,050 − $320 − $15 = $715
Net RPM: $1.37

Load B's gross RPM looked only modestly higher ($2.02 vs. $1.60), but its net RPM is 47% better ($1.37 vs. $0.93). This is exactly the gap gross RPM hides — and exactly what Load Lens surfaces in one click.

How to use this with Load Lens

Set your minimum RPM and total-pay thresholds in the popup. Matching loads highlight automatically.
Ctrl+Click any highlighted load to run the net profit calculation.
Read the net RPM. If it clears your floor, click the envelope (✉) to draft a broker email and lock it in.

Every step is manual. Load Lens never auto-refreshes, never books for you, and only calculates the load you explicitly click.

Stop guessing at load profitability

Load Lens shows net RPM on any DAT One load in one click.

Add to Chrome — It's Free

Net profit estimates depend on fuel prices, toll data, and driving-distance approximations that may vary from real-world costs. Load Lens is an informational aid and does not provide financial advice. Not affiliated with DAT Freight & Analytics; "DAT" and "DAT One" are trademarks of their respective owner.