Track mower, trimmer, and heater fuel footprints easily. Adjust factors, include upstream, compare seasons fast. Turn readings into smarter, lower‑carbon garden decisions weekly here.
| Scenario | Fuel | Quantity | Assumed upstream | Total (kg) | Notes |
|---|---|---|---|---|---|
| Mower session | Gasoline | 4 L | 20% | 11.27 | Small push mower refill |
| Tiller run | Diesel | 6 L | 19% | 19.20 | Garden tractor / tiller |
| Heater evening | Propane | 2 gal | 15% | 13.23 | Patio heater usage |
| Burner task | Kerosene | 1 gal | 18% | 11.66 | Outdoor burner |
| Greenhouse | Natural gas | 8 m³ | 12% | 17.34 | Gas line volume estimate |
This calculator applies direct combustion factors expressed as kilograms of CO₂ per base unit. Gasoline uses 8,887 grams per US gallon, diesel uses 10,180 grams per US gallon, propane uses 5.75 kilograms per US gallon, kerosene uses 9.88 kilograms per US gallon, and natural gas uses 54.81 kilograms per 1,000 cubic feet converted to 1.935 kilograms per cubic meter.
Inputs are converted to a consistent base before multiplying by the factor. Liquids convert gallons to liters using 3.78541 L per gallon. Natural gas converts cubic feet to cubic meters using 0.0283168466 m³ per ft³. The result card shows both the entered quantity and the converted base quantity to support audits.
Many footprints increase when extraction, refining, and delivery are included. The upstream toggle adds a percentage to direct CO₂, using Total = Direct × (1 + Upstream%/100). Typical planning defaults are 20% for gasoline, 19% for diesel, 15% for propane, 18% for kerosene, and 12% for natural gas, but you can enter any value from 0% to 200%.
When you provide area, the calculator reports kilograms of CO₂ per square meter. Area in ft² is converted using 0.09290304 m² per ft². This metric helps compare practices across beds, lawns, and greenhouse zones, especially when equipment time varies across seasons.
Annualization multiplies a single run by runs per week and weeks per year. For example, a 4 L gasoline mowing session at 20% upstream is about 11.3 kg CO₂; at twice weekly for 26 weeks, that approaches 588 kg CO₂ annually. Use the custom factor field to model biofuels, supplier data, or cleaner blends.
Operational choices can lower totals: sharpen blades, avoid idling, combine tasks, and maintain tire pressure. Switching to electric tools on renewable power can cut on-site emissions to zero, while reducing noise significantly.
It is the direct CO₂ emitted per unit of fuel burned, expressed as kg CO₂ per liter or per cubic meter. The calculator multiplies your converted fuel amount by this factor.
Use it when you want a planning footprint that includes extraction, refining, and delivery. Turn it off for direct combustion only. If unsure, keep upstream on and document the percent used.
Units must match the selected fuel category. Liquids use liters or gallons, while natural gas uses cubic meters or cubic feet. This prevents accidental mixing that would distort totals.
Enable the switch, then enter your supplier’s factor in kg CO₂ per base unit shown by the fuel type. This is helpful for biofuels, blended fuels, or updated official reporting values.
It normalizes emissions by garden size, producing kg CO₂ per m². This is useful for comparing different plots or seasons, especially when tasks shift between beds, lawns, and greenhouse areas.
Yes. Both exports use the last successful calculation saved in your session and include fuel, quantity, factor, and totals. Recalculate before exporting if you change any inputs.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.