How Fleet Fuel Cost Calculator Works?
This tool works by multiplying the number of vehicles by average monthly miles per vehicle, dividing by fleet miles per gallon (MPG), and pricing the fuel at $3.65 per gallon. The result is the monthly fleet fuel expense.
Enter the number of vehicles
Type the vehicles in active service, for example 12.
Enter monthly miles per vehicle
Type the average monthly miles, for example 1,800 miles (2,897 km).
Enter fleet average MPG
Type the average MPG across the fleet.
Read the monthly fleet cost
The tool returns total monthly fuel spending.
Fleet Fuel Cost Calculator Formula
The formula is Monthly Fleet Cost = ((Vehicles × Miles per Vehicle) ÷ MPG) × $3.65.
Fleet Cost = ((Vehicles × Miles per Vehicle) ÷ MPG) × $3.65Formula variables
- Vehicles × Miles
- Total fleet miles per month.
- MPG
- Fleet average fuel economy.
- $3.65
- Fixed fuel price per US gallon (3.785 L).
Worked example
- Number of Fleet Vehicles: 12 vehicles
- Avg Monthly Miles per Vehicle: 1,800 miles
- Fleet Avg MPG: 20 MPG
- Fleet miles: 12 × 1,800 = 21,600 miles.
- Gallons: 21,600 ÷ 20 = 1,080 gallons (4,088 L).
- Cost: 1,080 × $3.65 = $3,942.00 per month.
Result: $3,942.00 ($/month fleet expense)
The monthly figure equals $47,304 per year. Fuel often makes up 20% to 30% of a fleet's operating budget.
Fleet Fuel Cost Calculator Conversion Table
The table shows monthly fleet fuel cost for 4 fleet sizes at 3 MPG levels, with 1,800 miles per vehicle.
Rows: Number of Fleet Vehicles (vehicles). Columns: Fleet Avg MPG (MPG). Cells: $/month fleet expense.
| vehicles | 14 MPG | 20 MPG | 26 MPG |
|---|---|---|---|
| 5 vehicles | $2,346.43 | $1,642.50 | $1,263.46 |
| 12 vehicles | $5,631.43 | $3,942.00 | $3,032.31 |
| 25 vehicles | $11,732.14 | $8,212.50 | $6,317.31 |
| 50 vehicles | $23,464.29 | $16,425.00 | $12,634.62 |
Values held constant: Avg Monthly Miles per Vehicle = 1,800 miles.
A 50-vehicle fleet at 14 MPG spends $23,464.29 per month on fuel, compared with $12,634.62 at 26 MPG.
What is Fleet Fuel Cost Calculator?
The Fleet Fuel Cost Calculator is a tool that estimates the monthly fuel bill for a group of business vehicles. The tool suits delivery, service, sales, and municipal fleets.
Fleet fuel cost scales with 3 drivers: fleet size, miles per vehicle, and average MPG. Changing any of the 3 shifts the monthly bill.
The calculator uses a fleet-wide average, which works for planning. Per-vehicle tracking gives more detail for audits.
What are the uses of Fleet Fuel Cost Calculator?
There are 4 main uses of the Fleet Fuel Cost Calculator: setting fleet budgets, pricing fleet expansion, comparing vehicle replacements, and reporting fuel costs to management.
Setting fleet budgets
Managers set monthly fuel budgets per department.
Pricing fleet expansion
Managers price the fuel cost of adding vehicles.
Comparing vehicle replacements
Managers test the saving of raising fleet MPG.
Reporting fuel costs to management
Fleet teams report expected monthly spending.
Need every metric in one place? Open the main MPG Cost Calculator or browse all 101 fuel calculators.