Logistics Calculator

⛽ Truck Fuel Cost Calculator

Exact diesel cost for any run — gallons needed, cost per mile, DEF fluid, and idle cost. Know your fuel spend before you roll.

⛽ Run Details
Total Fuel Cost for This Run
Gallons Needed
Cost Per Mile
DEF Cost
Idle Fuel Cost
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Diesel Fuel Cost Reference

MPGCost/Mile at $3.50Cost/Mile at $4.00Per 800-Mile Run
5.5 MPG$0.636$0.727$509–582
6.0 MPG$0.583$0.667$467–533
6.5 MPG$0.538$0.615$431–492
7.0 MPG$0.500$0.571$400–457
7.5 MPG$0.467$0.533$373–427
How much does idling cost a trucker?
A diesel engine at idle burns approximately 0.8 gallons per hour. At $3.80/gallon, that's $3.04/hour. Overnight idling for 8 hours (for climate control) costs $24 per night, or about $7,200/year if you idle every night. APU (Auxiliary Power Unit) units cost $8,000–12,000 installed but pay for themselves in 1–2 years for drivers who sleep in their truck regularly.