Find your car’s real consumption in L/100 km, km per litre and MPG, plus the cost per 100 km, from the distance driven and fuel used.
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Enter the distance driven and litres used (tank to tank). The price is optional, for cost.
35 L ÷ 500 km × 100 = 7 L/100km
Consumption = 7 L/100kmQuick calculations for drivers. Standard formulas for consumption, cost and speed. Instant in-browser calculation, no account, no data sent. Fuel prices are indicative.
Consumption per 100 km is found by dividing litres used by kilometres driven and multiplying by 100:
For 35 litres over 500 km: consumption = (35 ÷ 500) × 100 = 7 L/100 km, that is ≈ 14.3 km/litre or 33.6 mpg (US).
It is the number of litres of fuel used to drive 100 kilometres. It is the standard unit in Europe; the lower the value, the less the car consumes.
Divide litres used by kilometres driven and multiply by 100. For example, 35 litres over 500 km = (35 ÷ 500) × 100 = 7 L/100 km.
Fill the tank, note the odometer, drive normally, then fill up again and note how many litres went in and how many km you drove. Divide litres by km and multiply by 100.
For US MPG: 235.215 ÷ (L/100 km). For UK: 282.481 ÷ (L/100 km). For example, 7 L/100 km ≈ 33.6 mpg (US) or 40.4 mpg (UK).
Under 5 L/100 km is very economical, 5–7 L/100 km is good for a modern car, and over 9–10 L/100 km is high, typical of SUVs or older cars.
In the city, stops, starts and idling use more fuel. On the motorway, at constant speed and low revs, the engine is far more efficient.
Keep correct tyre pressure, avoid harsh acceleration, drive at low revs, remove unnecessary weight and use air conditioning moderately. Smooth driving can cut consumption by 10–15%.
It is usually indicative and tends to be slightly optimistic. The “full tank” calculation (litres filled versus km driven) is the most precise method.