How Much Does It Cost to Fill a Tank of Petrol in Australia? (2026)

2026-04-06

Current cost to fill a tank: ULP $129–$172, Diesel $163–$217. See prices by state, fuel type & tank size.

What Does a Tank of Petrol Cost in Australia Right Now?

Filling up your car is one of the biggest regular expenses for Australian drivers, and prices vary wildly depending on where you live, what fuel you use, and how big your tank is. In April 2026, the average cost to fill a 60-litre tank ranges from $129 for E10 to $217 for diesel — a difference of nearly $100.

Whether you're planning a road trip, budgeting for monthly fuel, or just curious about what you'll pay at the pump, this guide breaks down exactly what you'll spend across Australia's states and fuel types.

Cost to Fill a Tank by Size (April 2026 Prices)

Here's what you'll pay to completely fill a tank from empty across different tank sizes. These figures are based on current national average prices: ULP $2.15/L, E10 $2.10/L, P95 $2.46/L, P98 $2.54/L, and Diesel $2.72/L.

Fuel Prices by State — Where Is Petrol Cheapest?

Australia's fuel prices vary significantly between states due to different market conditions, tax structures, and supply logistics. Here's where you'll find the best and worst prices across ULP, E10, and Diesel.

How Much You'll Pay by State to Fill a 60L Tank

Let's make it practical. Here's what a full 60-litre tank will cost you in each state for the most common fuel type, ULP:

How to Calculate Your Fill Cost

Calculating what you'll pay at the pump is straightforward:

**Fill Cost = Litres × Price per Litre**

For example, if you fill a 60L tank with ULP at $2.30/L: 60 × $2.30 = $138

Or use [FuelCalc's fuel cost calculator](/) to instantly see the cost for your specific tank size, fuel type, and location. Just enter your vehicle details and current fuel price — the calculator does the maths for you.

If you don't know your tank size, check your vehicle's manual or fuel door, or search online for your make and model. Most sedans have 50–65L tanks, SUVs range from 60–85L, and utes can exceed 100L.

Smart Tips to Reduce Your Fill-Up Costs

Fuel prices fluctuate daily, but there are proven strategies to minimise what you spend at the pump:

Historical Context: How Petrol Prices Have Changed

Australian fuel prices have been volatile over the past three years due to global supply chain disruptions and Middle East geopolitical tensions. In early 2024, ULP averaged $1.95/L. By mid-2025, rising oil prices pushed the national average to $2.20/L. Today in April 2026, we're sitting at $2.15/L, with diesel particularly high at $2.72/L due to stronger demand from freight and agriculture sectors.

The trend shows that: - Crude oil prices (set globally) account for 60–70% of what you pay at the pump - Local taxes and fuel excise make up 18–25% - Service station margins are 8–12%

This means Australian drivers are somewhat insulated from the worst global price swings, but we still feel the impact. Expect prices to remain volatile as long as oil supply concerns persist.

Use FuelCalc to Plan Your Fuel Costs

Wondering how much fuel a road trip will cost? [Calculate your trip fuel costs instantly with FuelCalc](/). Enter your origin, destination, vehicle, and current fuel price — and get the exact cost to fill up for your journey, plus the route distance and travel time.

Plus, if you're curious about different vehicles' fuel efficiency, [compare fuel consumption across car models](/) to see which option will save you the most money on fill-ups over time.

The Bottom Line

Filling a 60-litre tank with unleaded will cost you between $126 (SA) and $153 (NT) in April 2026. Diesel drivers pay $163–$218. While you can't control global oil prices, you can save $200+ annually by timing your fills wisely, choosing E10, and using fuel price tracking tools.

For precise calculations tailored to your vehicle, tank size, and location, use [FuelCalc's fuel calculator](/) — it's designed to help Australians get accurate, real-time fill costs without the guesswork.

Tags: petrol prices, tank cost, fuel prices 2026, diesel cost, ULP price