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Fuel Surcharge Calculator
A free Excel tool that calculates your exact per-mile fuel surcharge based on current diesel prices, so you can protect your margins during a price spike without guessing at a rate.
Diesel prices have spiked over 80% since the start of the year, and most flat-rate pricing has nowhere to absorb it. This calculator does the math for you.
Plug in three numbers — your baseline fuel price, today's fuel price, and your fleet's average MPG — and it instantly calculates:
Your exact per-mile surcharge rate
The total surcharge for a specific job, once you add the miles
A full rate table showing your surcharge at every diesel price point from $4/gallon to $6.50+, so you have a rate card ready before the next spike hits
No formulas to memorize, no manual math. Update the price fields as diesel moves and the calculator updates with it.
Built for home service and trade contractors who want to protect their margins without guessing at a rate.