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§ 05 — Vehicle · SA

South Australia petrol cost calculator 2026.

The current SA average fuel price is $1.91/L. Enter your kilometres and fuel economy below to see exactly what you're spending at the bowser per trip, week, month and year.

Updated · May 2026·Source: RAA's Fuel Price·Read · 3 min

Your inputs

km / week

Australian average is ~290 km/week (~15,000/year).

L/100km
$/L
Quick fill · current state averages
25 km

One-way to work, school run, etc.

Inputs local. Nothing sent anywhere.

The result

You spend on petrol · per year

$2,235

≈ $43 a week · $186 a month

Per trip
$3.58
25 km one way
Per week
$42.97
Per month
$186.22
Annual litres
1,170 L

§ What if the price moves?

Pump pricePer weekPer monthPer year
$1.71 -20¢$38.48$167$2,001
$1.81 -10¢$40.72$176$2,118
$1.91 current$42.98$186$2,235
$2.01 +10¢$45.22$196$2,352
$2.11 +20¢$47.47$206$2,469
$2.31 +40¢$51.98$225$2,703

State averages based on weekly retail data from FuelCheck (NSW), FuelWatch (WA), RACQ (QLD), and equivalent state monitors. Local prices vary by ±20¢ within a metro area; watch the weekly price cycle.

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South Australia petrol prices explained

South Australia's current average unleaded price of $1.91/L is made up of roughly: 80¢ for refined fuel, 50¢ federal excise, 22¢ GST, and the remainder covering distribution, retailer margin, and any metro price cycle premium.

RAA's Fuel Price Report tracks Adelaide's market. Understanding the local pricing dynamic can save a typical South Australia driver $300–$500 per year simply by timing fill-ups correctly.

If you drive the Australian average of ~15,000 km/year in a 7.5 L/100km car, you spend approximately $2,149 on petrol at the current SAprice. That's before any savings from timing the cycle.

§ Letters & replies

SA fuel prices, answered.

Common questions about petrol prices in South Australia.

What is the current petrol price in South Australia?+ open

Average unleaded 91 in SA is around $1.91/L as of May 2026. Adelaide has a price cycle — the NRMA-equivalent RAA publishes cycle alerts and Adelaide's cheapest stations via their website and app.

Why does South Australia have some of the highest petrol prices?+ open

SA's prices are typically 5–10¢/L above the national average, driven by fewer large independent retailers, higher distribution costs from Melbourne, and a less competitive wholesale market. Adelaide's cycle also tends to peak higher than Sydney or Melbourne.

What tools track petrol prices in Adelaide?+ open

The RAA's Fuel Price Report is the most reliable SA-specific resource. GasBuddy and MotorMouth also have SA coverage. The SA Government doesn't operate a state price monitoring scheme like WA's FuelWatch.

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