Fuel range calculator

Range = litres in the tank ÷ L/100km × 100. Fuel used = km × L/100km ÷ 100. Enter your tank, how full it is and your fuel use for the km left and the cost to fill up.

Tank
Fills in the tank size and fuel use. Or type your own figures below.
Tank size
From the owner’s manual; the gauge may read empty before the last litres.
Range and fuel used
Starts at a medium car. Your own figure from a few fills is better.
Optional: the fuel this drive uses.
Fuel price

Prices the fill and the drive. Leave it empty for range only.

Find a station price

Example: 60 L tank, a quarter full

Example

Range on the fuel in the tank

about 188 km

Full tank about 750 km · 100 km uses 8.0 L · cost to fill $100.85

Fuel in the tank now
15.0 L
Fuel use
8 L/100km
Per 100 km
100
Range now
about 188 km
Full-tank range
about 750 km
Fuel used over 100 km$17.93 · the fuel in the tank covers it
8.0 L
Litres to fill
45.0 L
U91 national average
224.1 c/L
Cost to fill
$100.85
Full tank from empty
$134.46

Fill at 5 c/L less:$98.60

Range is an estimate; keep a margin before the gauge reads empty.

Example: 60 L tank, a quarter full. Range on the fuel in the tank. about 188 km. Full tank about 750 km · 100 km uses 8.0 L · cost to fill $100.85

Range now · full tank about 750 km · fill $100.85about 188 km

Details

How far a full tank goes

Typical tanks and fuel use by car size, with the cost to fill from empty at the national U91 average of 224.1 c/L.

  1. Small car · 45 L · 6.5 L/100km

    Full tank about 692 km · $100.85 to fill from empty

  2. Medium car · 55 L · 8 L/100km

    Full tank about 688 km · $123.26 to fill from empty

  3. Large / SUV · 60 L · 10 L/100km

    Full tank about 600 km · $134.46 to fill from empty

  4. 4WD / Ute · 80 L · 12 L/100km

    Full tank about 667 km · $179.28 to fill from empty

National U91 average from 6,908 reporting stations, updated .

Read range and fill-up figures as estimates

  1. Check usable tank capacity

    Use the vehicle’s stated fuel-tank capacity and remember that the gauge may reach empty before every litre is usable.

  2. Estimate the current level

    A quarter-tank or half-tank reading is approximate, so treat the range and the litres needed as planning figures.

  3. Use your real fuel use

    A small change in fuel use moves the range a long way. Work your own figure out from a few fills with the fuel consumption calculator.

  4. Price the right grade

    Use a current price for the grade your vehicle requires. A station’s price can change after a report, so check the bowser before filling.

Fuel map

Check a station price before you go

Open the fuel map for reported prices, update times and directions near you or along your route.

Get the free FuelRadar app

Free on iPhone and Android: price alerts, saved stations, the forecast.

Download on the App StoreGet it on Google Play

Fuel range calculator questions

How do I work out my fuel range?

Range = litres in the tank ÷ L/100km × 100. A 60 L tank a quarter full holds 15 L; at 8 L/100km that is 15 ÷ 8 × 100 = about 188 km. Real range varies with traffic, load and driving style.

How much fuel will a drive use?

Fuel used = km × L/100km ÷ 100. 250 km at 8 L/100km uses 250 × 8 ÷ 100 = 20.0 L. Multiply the litres by the price per litre for its cost.

How is the cost to fill calculated?

Litres needed = tank size × (1 − current level). Multiply by the price per litre to get the cost of this fill.

Which tank size should I pick?

Pick the closest preset or enter the figure from the owner’s manual. Small cars are usually 40–45 L, mid-size 50–55 L, larger cars 60–70 L and SUVs or utes 70–80 L.