Fleet Fuel Comparison Calculator
Compare total cost and emissions across diesel, CNG, LNG, propane, and electric for commercial fleet vehicles
Free source-aware planning screen for fleet managers, sustainability coordinators, and transportation planners who need an early comparison of diesel, compressed natural gas (CNG), liquefied natural gas (LNG), propane autogas, and battery electric fleet assumptions. Enter fleet size, vehicle class, annual mileage, dated fuel prices, infrastructure placeholders, vehicle premiums, and an editable grid emission factor. The screen compares local sample fuel cost, maintenance cost, infrastructure amortization, vehicle premium amortization, and simplified CO2 estimates. CNG is entered as $/GGE, LNG as $/DGE, and propane as $/gal with a visible DGE warning. The output is a planning screen, not a live price feed, lifecycle model, emissions inventory, grant analysis, or procurement recommendation.
Screen annual fleet fuel-use rows after emissions method checks
Fuel Combustion Emissions Calculator →Compare EV vs gas for light-duty fleet vehicles
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Fleet PM Cost Calculator →Calculate carbon intensity of your grid electricity
CO2 Carbon Intensity →How It Works
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Define Your Fleet Profile
Enter the number of vehicles, vehicle class, average annual miles per vehicle, and diesel baseline. Treat the built-in class values as sample placeholders until you replace them with telematics, fuel-card, maintenance, and OEM data.
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Enter Dated Fuel Prices
Input diesel in $/gal, CNG in $/GGE, LNG in $/DGE, propane in $/gal, and electricity in $/kWh. Verify every quote date and billing unit before comparing alternatives.
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Set Infrastructure and Vehicle Premiums
Enter station, charger, utility make-ready, vehicle premium, maintenance, infrastructure life, and any cost-offset assumptions from your own quotes or grant documents. The app amortizes those local inputs; it does not verify eligibility or market pricing.
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Review Source-Aware Results
Review cost per mile, annual cost components, simplified CO2 screen, unit warnings, and source notes for each fuel. Use the output to decide what needs deeper route modeling, utility review, lifecycle modeling, or procurement validation.
Built For
- Fleet managers screening CNG, propane, LNG, or electric assumptions before requesting supplier quotes
- Logistics teams comparing local fuel, route, charging, and infrastructure inputs for regional operations
- Municipal fleet coordinators preparing a preliminary source list for council or grant discussions
- Sustainability teams collecting assumptions before a formal emissions inventory or lifecycle model
- School districts comparing propane or electric bus assumptions before checking current grant rules
Assumptions
- Vehicle class, fuel economy, maintenance, vehicle premium, and infrastructure entries are local sample defaults until replaced with fleet-specific data.
- CNG uses a GGE billing basis, LNG uses a DGE basis, and propane uses gallons with an AFDC-style DGE conversion warning.
- CO2 estimates are simplified direct-fuel and editable grid-factor screens, not a full lifecycle or reporting inventory.
- Infrastructure and incentive fields are placeholders that require current vendor, utility, grant, tax, and owner review.
Limitations
- Does not model route-specific duty cycles, payload, terrain, weather, idle time, range reserve, or charger scheduling.
- Does not verify live fuel prices, electricity tariffs, demand charges, taxes, grants, incentives, credits, or contract terms.
- Does not perform full lifecycle, Scope 1/2/3, LCFS, RIN, REC, carbon-credit, or regulatory emissions accounting.
- Does not replace procurement, utility interconnection, infrastructure engineering, maintenance planning, or qualified emissions review.
References
- DOE Alternative Fuels Data Center (AFDC) - Fuel Properties Comparison Table
- DOE Alternative Fuels Data Center (AFDC) - Gasoline and Diesel Gallon Equivalency Methodology
- DOE Alternative Fuels Data Center (AFDC) - Alternative Fuel Price Report
- EPA GHG Emission Factors Hub
- EIA Electric Power Monthly Table 5.3
- DOE AFDC Vehicle Cost Calculator Methodology
Frequently Asked Questions
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