Calculator
Recent history
Example data
| Equipment | Mode | Distance | Fuel | Hours | Key metric |
|---|---|---|---|---|---|
| Lawn mower | Runtime | — | 1.40 L | 1.20 h | Fuel rate: 1.17 L/hr |
| Garden tractor | Travel | 18.00 km | 3.60 L | — | L/100km: 20.00 |
| Tiller | Mixed | 6.00 km | 1.90 L | 0.80 h | L/hr: 2.38 |
Formulas used
- Fuel efficiency (L/100km): Fuel(L) ÷ Distance(km) × 100
- Fuel efficiency (km/L): Distance(km) ÷ Fuel(L)
- Fuel efficiency (MPG): Distance(miles) ÷ Fuel(gallons)
- Fuel rate (per hour): Fuel(L) ÷ Hours
- Fuel per area: Fuel(L) ÷ Area(ha) (or gallons per acre in imperial)
- Fuel cost: Fuel(L) × Price(per L)
- Range estimate: Tank(L) ÷ (Fuel(L) ÷ Distance(km))
- Estimated CO₂: Fuel(L) × Factor (approx 2.31 gasoline, 2.68 diesel kg/L)
How to use this calculator
- Select your unit system and calculation mode.
- Enter fuel used, then add distance and/or runtime hours.
- Optionally enter price, area covered, and tank capacity.
- Press Calculate to see results above the form.
- Use CSV or PDF to export the last result or history.
- Compare history entries to spot efficiency changes over time.
Fuel use planning for garden equipment
Fuel consumption in gardening is rarely “one number.” It changes with grass height, blade sharpness, soil moisture, transport distance, and how often the throttle is opened. This calculator helps you capture those variables consistently, so you can compare runs and improve efficiency without guessing.
Operational inputs that move the needle
Track distance for travel jobs, runtime hours for stationary work, and area covered for mowing or tilling. Keeping these three measures together highlights where fuel is going: transport, cutting load, or idle time. Notes like “wet grass” or “new filter” explain spikes in consumption.
Efficiency metrics you can act on
L/100km and MPG help compare trips and route choices, while fuel rate per hour is best for mowers, blowers, pumps, and generators. Fuel per area shows how much energy each hectare or acre is costing you, which is ideal for seasonal budgeting and scheduling.
Cost control with repeatable records
Entering a fuel price converts consumption into direct spending, then breaks it down per distance, hour, and area. The history table makes comparisons fast: you can see whether a sharpened blade reduced fuel per hour, or whether a longer route raised cost per distance.
Range and refill strategy
Adding tank capacity estimates working range, which reduces mid-task refueling and downtime. For remote gardens, range planning supports safer operations: fewer stops, fewer spills, and better timing for fuel purchases. Use mixed mode when equipment drives and works in the same session.
Emissions awareness for practical decisions
The calculator estimates CO₂ based on fuel type, helping you compare alternatives like shorter trips, reduced idling, or batching tasks. Small operational changes can lower both emissions and cost, especially when repeated across weekly maintenance cycles.
FAQs
1) Which mode should I choose for a lawn mower?
Use runtime mode when you mainly record engine hours. Add area covered to compare fuel per hectare or acre. If you also drive between sites, switch to mixed mode.
2) Why does the tool show both L/100km and MPG?
They describe the same travel efficiency using different conventions. L/100km is common for metric planning, while MPG helps compare against vehicle-style benchmarks in imperial contexts.
3) How accurate is the CO₂ estimate?
It is an operational estimate based on typical emission factors per liter. It helps compare runs and identify improvement opportunities, but it is not a certified carbon inventory figure.
4) What if I do not know the fuel price?
Leave price blank. You will still get efficiency, fuel rate, and emissions. Add price later to convert the same usage pattern into cost per hour, area, or distance.
5) Can I track different machines in the same session?
Yes. Select the equipment type for labeling, run a calculation, and it will be saved in the session history. Export the history to compare machines side by side.
6) Why did my fuel per area increase after rain?
Wet grass and soft soil increase load, slipping, and repeated passes. Record conditions in notes and compare fuel rate and area metrics across dry and wet days to quantify the impact.