Vehicle Emissions Calculator Form
Example Data Table
| Scenario | Fuel Type | Distance | Efficiency | Occupancy | Trips/Year | Estimated Total kg CO2e/Trip |
|---|---|---|---|---|---|---|
| City delivery van | Diesel | 180 km | 11 km/L | 1 | 280 | 54.82 |
| Employee commute | Gasoline | 40 km | 15 km/L | 1.2 | 230 | 7.60 |
| Shared electric shuttle | Battery Electric | 95 km | 18 kWh/100 km | 8 | 300 | 7.70 |
Formula Used
Fuel or energy used is calculated from trip distance and efficiency, or entered directly when measured consumption is available.
Tailpipe emissions = Fuel or energy used × tailpipe factor.
Upstream emissions = Fuel or energy used × upstream factor.
Total trip emissions = Tailpipe emissions + upstream emissions.
Emissions per kilometre = Total trip emissions ÷ trip distance in kilometres.
Emissions per passenger-kilometre = Total trip emissions ÷ (trip distance × occupancy).
Annual emissions = Total trip emissions × trips per year.
How to Use This Calculator
- Enter a vehicle name to label your scenario.
- Select the fuel type and your preferred calculation method.
- Add trip distance, unit, and average occupancy.
- For distance-based calculations, enter the efficiency value and matching unit.
- For measured usage, choose direct use and enter total litres, kilograms, or kWh.
- Keep default emission factors for quick estimates, or replace them with your reporting factors.
- Set trips per year to project annual operational emissions.
- Press calculate to see the result above the form, then export it as CSV or PDF.
Frequently Asked Questions
1. What does this calculator estimate?
It estimates trip and annual vehicle emissions using distance, efficiency, measured fuel or energy use, occupancy, and custom emission factors.
2. Why include upstream emissions?
Upstream emissions capture impacts from producing and delivering fuel or electricity. They help create a broader climate and ESG view than tailpipe emissions alone.
3. Can I use custom factors from my reporting framework?
Yes. Replace the default factors with values from your internal methodology, national inventory, supplier disclosures, or carbon accounting standard.
4. Is this suitable for electric vehicles?
Yes. Electric vehicles can use kWh-based efficiency or direct energy input. Tailpipe emissions are usually zero, while upstream values can reflect grid intensity.
5. What is passenger-kilometre intensity?
Passenger-kilometre intensity divides total trip emissions by distance and average occupants. It helps compare shared travel against single-occupant trips more fairly.
6. Which method should I choose?
Use distance plus efficiency when you only know mileage. Use direct fuel or energy use when you have invoices, telematics, or meter readings.
7. Are the default factors universal?
No. They are practical defaults for estimation. Actual factors vary by fuel mix, geography, reporting boundary, and methodology.
8. Can I export the output for reports?
Yes. After calculating, use the CSV button for spreadsheet work and the PDF button for a shareable reporting snapshot.