Fuel Cost Calculator
Estimate trip fuel cost, distance on a budget, or the economy required to hit a cost target.
Trip details
Updates as you typeMode
What do you want to solve for? ?
Budget ?
—
$
Fuel type
Preset ?
Distance
Trip distance ?
km
—
Fuel economy
Consumption ?
—
L/100 km
Fuel price ?
—
$
/L
Display (optional)
Currency
Cost by distance
Same economy + price, different trip lengths| Distance | Fuel needed | Total cost | Cost per km | Relative |
|---|
Sensitivity to fuel price
Your trip at ±20% fuel-price swings| Price | Δ vs current | Total cost | Relative |
|---|
Formula
Cost
=
Distancekm × ConsumptionL/100 km
100
×
Price
- Cost
- Total fuel cost for the trip
- Distancekm
- Trip distance in kilometres (miles × 1.609344)
- Consumption
- Normalised to litres per 100 km
- Price
- Pump price per litre in the chosen currency
Worked example — your numbers
- Distance (normalised) = —
- Consumption (normalised) = —
- Fuel needed = distance × consumption ÷ 100 = —
- Price = —
- Total cost = fuel × price = —
Fuel economy is always normalised to L/100 km internally — mpg (US) uses the US gallon (3.7854 L), mpg (UK) the imperial gallon (4.5461 L). Round-trip simply doubles the one-way distance before the calculation runs.