Fuel Cost Per Mile Guide
Calculating fuel cost per mile is essential for trucking operations — whether you're an owner-operator, fleet manager, or dispatcher. It helps you price loads accurately, plan budgets, and track performance over time.
What is Fuel Cost Per Mile?
Fuel cost per mile is the amount of money you spend on fuel to drive one mile. It depends on your truck’s fuel economy and current fuel price.
The Formula
Fuel Cost ÷ MPG = Cost/Mile
Example: Diesel is $4.00/gal and truck gets 8 MPG.
$4.00 ÷ 8 = $0.50 per mile
Why It Matters
Budgeting
Know exactly how much trips will cost ahead of time.
Pricing
Set competitive freight rates while protecting profit.
Tracking
Compare your actual results vs forecasts.
Real-world fuel economy often differs from EPA ratings — record your own MPG over many trips to improve accuracy.
Step-by-Step Calculation
Know your MPG
Track your average miles per gallon over real use.
Use Current Prices
Enter the diesel cost per gallon.
Apply Formula
Divide fuel price by MPG to get cost per mile.
Example: If your truck gets 7 MPG and diesel is $4.20/gal:
$4.20 ÷ 7 = $0.60 per mile
Other Costs to Know
Fuel cost per mile is a major part of operating cost, but remember there are other variable expenses like:
Including all these will help you calculate total cost per mile and ensure your revenue covers them with profit.
Use the FreeTruckCalc Tool
Head over to the Cost Per Mile Calculator and enter your numbers — the tool will instantly compute your cost per mile and profit per mile.
Go to Calculator