Tool
Fuel card savings estimator
Enter your weekly diesel usage, the pump price, and your fuel card's per-gallon discount to see what a retail-minus card saves you per week, per month, and per year — and how that translates to cost per mile.
Your numbers
Fuel usage
Current pump price
Fuel card discount
Retail-minus discount is deducted from the pump price at time of purchase. Common range: 15–50 ¢/gal depending on card and network.
Savings estimate
How the savings are calculated
The tool starts with your pump price and subtracts the card discount to get the net price per gallon. It then multiplies the weekly gallon purchase by the discount per gallon to get weekly savings. Monthly savings use a 4.33-week multiplier; annual savings use 52 weeks.
Net price = pump price − (discount ÷ 100)
Weekly savings = weekly gallons × (discount ÷ 100)
The CPM impact divides the weekly fuel cost by weekly miles to show how fuel card savings lower your cost per mile — one of the most direct ways to improve load profitability without hauling more freight.
What this calculator does not account for
Some fuel cards charge a transaction fee, weekly fee, or account fee — these reduce net savings and should be subtracted from the annual savings figure to get the true benefit. Cards with network restrictions may not always provide the full discount at every stop — actual savings vary by location. The pump price input uses a single average; real diesel prices fluctuate daily, so savings estimates will change when prices move significantly.