Travel calculators
Fuel, distance, trip cost and travel time. Start with a fuel cost calculator using litres per 100 km — the consumption figure on Australian windscreens.
- Fuel cost calculatorEstimate litres used and trip cost from distance, L/100 km consumption and the price at the pump, including an optional return trip.
- Fuel economy converterConvert L/100 km to km/L and back — the two ways of writing the same consumption.
- Travel time calculatorEstimate driving time from distance and average speed. This is not live traffic.
- Length converterConvert millimetres, centimetres, metres, kilometres, inches, feet, yards and miles.
Australian distances make fuel the dominant cost of a long drive, so a trip budget usually comes down to two numbers: how much fuel your car uses per 100 kilometres, and what you will pay per litre. The first is worth measuring rather than assuming, because real-world consumption is reliably worse than the figure on the windscreen label.
These tools work in the units Australia actually uses — kilometres, litres and L/100 km — which is also why local figures do not compare directly with the miles per gallon quoted in American reviews.
Which tool do you need?
- Costing the fuel for a specific drive: use the fuel cost calculator with your consumption and a realistic pump price.
- Working out your car’s real consumption from a tank of fuel: use the fuel economy calculator on a brim-to-brim fill.
- Estimating how long a drive will take: use the travel time calculator with an average speed well below the limit.
- Converting miles to kilometres from an overseas source: use the length converter.
Common questions
Is a lower or higher L/100 km better?
Lower is better. L/100 km measures how much fuel is consumed to cover a fixed distance, so a smaller number means less fuel. This is the opposite direction to miles per gallon or kilometres per litre, where higher is better.
Why is my real fuel consumption worse than the official figure?
The official figure comes from a standardised laboratory test cycle. Real driving adds traffic, hills, higher speeds, air conditioning, a loaded car, roof racks, under-inflated tyres and short cold-start trips, all of which increase consumption.
Does a trip cost include tolls and accommodation?
No. A fuel cost is only fuel. Tolls, accommodation, food, servicing and tyre wear are real costs of a long drive and need to be budgeted separately.
Before you rely on a result
Every calculator on this page shows the formula it used, the assumptions it made and the source of any regulated figure. Results are estimates and not professional advice — the disclaimer explains the limits, and the guides explain the reasoning in more depth.