Fuel Surcharge Calculator
Use this free surcharge calculator to find out how much to add to your rates when fuel costs rise. Enter your numbers and get your answer in seconds.
How to calculate your fuel surcharge
Step 1
Set your baseline
Your baseline is the fuel price you had in mind when you last set your rates or quotes. Everything above that number is what your surcharge needs to recover.
Step 2
Check today's fuel price
The U.S. Energy Information Administration publishes the national average fuel price every Monday. That is the figure most businesses use as their standard reference point.
Step 3
Run the numbers
Enter your inputs and the calculator does the rest. You will get your recommended surcharge expressed in the unit that matches how you price your work.
Why use our fuel surcharge calculator?
Protect your margins
When fuel prices rise unexpectedly, an unplanned fuel cost increase comes straight out of your profit. Knowing your surcharge number means you can adjust your rates before it hurts.
Charge fairly
A calculated surcharge gives you a defensible number to share with customers. It shows the increase is tied to real fuel costs, not an arbitrary price hike.
Stay consistent
Using the same baseline and methodology every time keeps your pricing predictable for you and your customers, regardless of how fuel prices move.
Frequently asked questions
Which mode should I use?
If you charge customers by the mile, like in trucking or freight, use Per mile. If you charge by the job or service, like in trades or contracting, use Per job.
Not sure? Think about how you quote your work. Per job, per project, or per service call means Per job mode is right for you.
How do you calculate a fuel surcharge
Start with the difference between your current fuel price and your baseline, then factor in your cost structure.
For businesses that charge per mile, divide that difference by your average MPG to get your surcharge in dollars per mile.
For businesses that charge per job, apply that difference against the percentage of your costs that goes to fuel. The calculator handles both automatically.
What is a fuel price baseline?
The fuel price you were working from when you last set your rates or quotes. Everything above that number is what the surcharge is designed to recover. If you have not revisited your pricing recently, figuring out your baseline is the right place to start.
What does a fuel surcharge mean on an invoice?
A separate line item added on top of a base rate to recover the portion of fuel costs that have risen above a set baseline. It is not meant to cover your total fuel spend, just the increase above what you originally planned for.
Is there a standard fuel surcharge rate?
No. Every business sets their own based on their baseline, their cost structure, and how much of the increase they want to pass on. Fuel surcharge rates vary across industries and business types.
What about businesses that charge per mile, like trucking or delivery?
For transportation and trucking businesses, the fuel surcharge calculation is tied to mileage. The per mile mode uses your average MPG alongside your baseline and current fuel price to give you a cents per mile figure you can add directly to your rate. Most carriers set their own surcharge independently since there is no mandated rate across trucking or freight.
How does Coast help fleets manage fuel costs?
Coast is a fleet expense management platform built for construction, trades, and transportation businesses. It gives fleet managers real-time visibility into fuel and non-fuel spend across every driver and vehicle, with per-card spending controls that help prevent misuse before it happens.
Coast works anywhere Visa is accepted, so your drivers are never limited to a specific network of stations.
Still have questions?
Hear directly from a Coast customer about how it's working for their fleet.
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