Running a business with company cars, service vans, delivery vehicles, pickups, or work trucks means fuel is more than a routine purchase. It is a recurring operating expense that can affect pricing, cash flow, profit margins, and annual budgeting.

The RetireCoast Small Business Fuel Calculator helps you estimate monthly and annual fuel costs based on the number of vehicles in your fleet, miles driven, average fuel economy, fuel prices, and additional fuel use for equipment or idling. You can enter vehicles individually or group similar vehicles together to create a practical estimate for your business.

The calculator also shows estimated gallons used, average fuel cost per mile, total annual fleet mileage, and the potential effect of a future increase in fuel prices. This can help you prepare budgets, evaluate delivery or service costs, review customer pricing, and understand how fuel-price changes may affect your operating expenses.

To begin, enter your business assumptions and add each vehicle or vehicle group. Use realistic monthly mileage and average miles per gallon for the most useful estimate. You can then save the calculation on your device or print the results for your records.

This tool is designed for planning and comparison purposes. Actual fuel expenses may vary because of traffic, idling, towing, driver behavior, vehicle condition, seasonal fuel prices, taxes, and other operating conditions.

RetireCoast Fuel Intelligence Tool
🏢 Small Business Fuel Calculator

Estimate monthly and annual fuel expenses for company cars, service vehicles, delivery vans, pickups and other small-business fleets.

Enter one row for each vehicle or group of similar vehicles. The calculator estimates gallons used, fuel costs, cost per mile and the effect of a future fuel-price increase.
1. Business assumptions

These settings apply to the entire fleet. Use the number of active operating months that best reflects your business.

$/gal
2. Add fleet vehicles

Group identical vehicles together or enter each vehicle separately for a more detailed estimate.

On a phone, swipe the vehicle table sideways to view all fields.
Vehicle or Group Fuel Quantity Miles per Vehicle per Month Average MPG Fuel Price per Gallon Monthly Cost Remove
3. Additional fuel use

Include fuel that may not be captured by vehicle mileage, such as equipment, generators, idling or refrigerated units.

Estimated Fuel Expense
Monthly Fleet Miles
0
All entered vehicles
Monthly Gallons
0
Vehicles and additional use
Monthly Fuel Cost
$0
Estimated operating month
Annual Fuel Cost
$0
Based on 12 operating months
Average Cost per Mile
$0.00
Fuel cost only
Annual Fleet Miles
0
Projected business travel
Annual Gallons
0
Projected fuel consumption
Average Fleet MPG
0.0
Mileage-weighted estimate
Fuel-Price Increase Scenario
Price increase tested $0.50 per gallon
Additional monthly cost $0
Additional annual cost $0
Enter your fleet information and select Calculate Fuel Expense to create a business fuel-cost summary.
Planning note: This calculator provides an estimate for budgeting and comparison purposes. Actual expenses may vary because of traffic, idling, vehicle condition, driver behavior, terrain, towing, seasonal fuel blends, taxes and changing fuel prices. It does not include maintenance, insurance, depreciation, financing, registration, payroll or other vehicle operating costs.
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Why Are Gas Prices Rising or Falling?

You've compared fuel prices across the United States. The next question is why those prices change. One of the biggest influences is the price of crude oil. Our Crude Oil to Gasoline Price Calculator demonstrates how changes in crude oil prices can ripple through the fuel supply chain and eventually affect the price you pay at the pump.

Did you know? Crude oil typically represents the largest component of the retail price of gasoline, but refining costs, transportation, taxes, seasonal fuel blends, and local competition also influence what drivers pay in each state.
Want to Better Understand Gasoline, Diesel & Crude Oil?

Fuel prices don't change by chance. They are influenced by crude oil markets, refining capacity, transportation costs, fuel taxes, seasonal demand, weather events, and global economic conditions. If you want to understand why prices differ from state to state and how to interpret the results of this tool, our comprehensive guide is an excellent next step.

You'll also discover how one barrel of crude oil becomes gasoline and diesel, why diesel often costs more than gasoline, the factors that influence prices at the pump, and test your knowledge with an interactive quiz.

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Turn Fuel Price Information Into Better Financial Decisions

Knowing your state's average gasoline and diesel prices is only the beginning. Explore additional fuel-price resources, use our collection of financial calculators, or connect transportation costs with your household budget through the RetireCoast Millennial Financial Lab.

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Business Builder Membership

Fuel is one of the largest operating expenses for many businesses. Learn how to estimate transportation costs, build fuel expenses into pricing, improve profitability, and access planning tools designed specifically for entrepreneurs and small business owners.

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