🧭 Fuel Calculator
Plan fuel for a trip that mixes on-road and off-road driving — see at a glance whether your tank and jerry cans will get you there.
Vehicle & consumption
km per litre
km per litre
litres
litres, total of all jerry cans
Trip distance
Multi-leg trip planner
Break the trip into legs with refuel stops
km
km
Cost & buffers
Enter your local pump price — this varies by country, so there's no default we can source for you.
Advanced settings
% of total capacity to keep in hand at all times
% buffer for remote-area premiums or price changes (+ to raise, − to lower)
Total fuel needed
67.5 L
450 km total
Total capacity
120 L
80L tank + 40L jerry
Margin remaining
52.5 L
44% of capacity
Estimated fuel cost
KSh 12,488
KSh 185.00/L (diesel)
reserve
0 L126 L
On-road: 37.5 L (300 km)Off-road: 30.0 L (150 km)
What this means
This trip needs 67.5 L out of your 120 L carrying capacity, leaving 52.5 L (44%) spare — comfortably above your 20% reserve target. Estimated fuel cost: KSh 12,488.
Assumptions & notes
- Consumption is assumed constant for all on-road (or all off-road) driving — deep sand, mud, or steep climbs can use noticeably more fuel than average off-road terrain.
- The reserve target is fuel you plan to never actually use — a real safety margin for detours, headwinds, or worse-than-expected consumption.
- In multi-leg mode, "refuel at end?" assumes you top the combined tank + jerry cans back to full at that stop — it doesn't model tank vs. jerry cans separately. The litres each stop adds are counted as fuel replenished, so total fuel needed can exceed what you carry and the trip still works.
- With refuel stops, the margin shown is your lowest running fuel level, not the whole trip measured against a single tankful.
- Fuel price is whatever you enter — this tool doesn't look up live prices, since pump prices and currencies vary by country.
All calculations run in your browser — nothing is sent anywhere.