The Bosch 1500W at around A$169 is the best pressure washer in Australia for most homes, rated at 1740 PSI with a variable fan jet, rotary and detergent nozzle. The Kärcher K2 Premium matches it on price at 1700 PSI with a 6m hose, and the Giraffe Tools Grandfalls G20 is the wall-mounted option with a 20-metre hose for driveways.
Editor's choice
BBosch
Bosch
Bosch 1500W Electric High Pressure Washer, 1740 PSI
The sensible default. It matches the A$255.99 Kärcher K3 for real-world output once you convert the units, weighs less, and comes with the rotary nozzle that does the actual work on concrete.
Pressure washers are quoted in three different units depending on who made them, which makes them unusually hard to compare. Bosch lists watts and PSI; Kärcher lists bar and litres per hour. As a rough conversion, 120 bar is about 1,740 PSI — so the Kärcher K3 and the Bosch 1500W are closer in output than their spec sheets suggest. Everything below was confirmed listed, in stock and shipping within Australia at the time of writing, with pressure, flow rate, hose length and weight taken from each manufacturer's own listing. The other number worth as much as PSI is hose length: it ranges from 5 metres to 20 metres here, and that decides how much of the driveway you reach without moving the machine.
How to choose the best high pressure washer in Australia
1Convert before you compare. Bosch quotes watts and PSI, Kärcher quotes bar and litres per hour. Roughly, 120 bar equals about 1,740 PSI — which puts the A$255.99 Kärcher K3 and the A$169 Bosch 1500W in the same performance bracket despite very different-looking specifications.
2Hose length matters as much as pressure for real jobs. Five metres (Bosch 1500W, Kärcher K2) is fine for a car; seven metres (Kärcher K3, Bosch 1900W) covers a small courtyard; the Giraffe Tools wall-mounted unit runs 20 metres and is the only one here that reaches a whole driveway from a fixed point.
3Flow rate is the forgotten number. Kärcher's K2 lists 6.3 litres per minute and the K3 380 litres per hour — about 6.3 l/min as well. Pressure blasts the dirt loose; flow rate carries it away, which is why a high-PSI machine with low flow feels slower on a big flat surface.
4Weight decides whether you use it. The Bosch 1500W is 5.2kg and the 1900W is 7.55kg; the wall-mounted Giraffe is 18.5kg but never has to be carried. If it lives in a shed and gets dragged out, lighter wins.
5Consider a cordless tank model if there is no tap nearby. The Bosch Fontus carries its own 6-litre water supply and runs on an 18V battery — far less pressure than a mains unit, but it works at a campsite, a beach car park or a bike trail where no other machine here would.
Top 6 cleaning picks for Australia
#1Top pick
BBosch
Bosch
Bosch 1500W Electric High Pressure Washer, 1740 PSI
Best overall
The sensible default. It matches the A$255.99 Kärcher K3 for real-world output once you convert the units, weighs less, and comes with the rotary nozzle that does the actual work on concrete.
1740 PSI for A$169 — the best pressure-per-dollar here
Three nozzle types including a rotary for stubborn ground-in dirt
5.2kg, the lightest mains-powered unit in this guide
Cons
5m hose is the shortest here
No hose reel
#2
KKärcher
Kärcher
Kärcher K2 Premium VPS Electric Pressure Washer, 1700 PSI
Best value Kärcher
Best value Kärcher
The one to buy if you want the Kärcher accessory ecosystem at the entry price. Performance is level with the Bosch; you are choosing between a longer hose and quick-connect on one side, and a rotary nozzle on the other.
Kärcher's quick-connect system makes changing nozzles genuinely fast
6m hose, a metre more than the Bosch at the same price
Upright 79cm body wheels around easily
Cons
1700 PSI is entry-level for Kärcher
Fewer nozzle types than the Bosch
#3
KKärcher
Kärcher
Kärcher K3 Power Control Pressure Washer
Best mid-range
Best mid-range
A good machine at a price the Bosch undercuts. Buy it for the 7-metre hose, the 4.4kg weight and Power Control — not because 120 bar sounds larger than 1740 PSI, because those are nearly the same thing.
Lightest mains unit here at 4.4kg despite the higher spec
7m hose covers a courtyard without moving the machine
Power Control system adjusts pressure to the surface
Cons
A$87 more than the Bosch for similar converted output
Kärcher quotes bar and l/h, which makes comparison work
#4
BBosch
Bosch
Bosch 1900W Electric High Pressure Washer, 1958 PSI
Most powerful
Only worth the premium if you regularly clean brick, fencing or a boat. For cars and patios the 1500W does the same job for half the money — the extra 218 PSI is not what most people are missing.
The right answer for a house with a long driveway and a wall to mount it on. Once fixed, the weight stops mattering and the 20-metre hose removes the constant repositioning that makes portable units tiring.
Not a replacement for a mains washer, and not trying to be. Buy it for bikes after a trail ride, surfboards at the beach or muddy boots at a campsite — jobs where every other machine in this guide is useless because there is no tap.
Carries its own water, so it works with no tap and no power point
Highest customer rating of any pick here at the time of writing
8 pressure settings and onboard hose storage
Cons
Nowhere near mains pressure — this is for rinsing, not stripping concrete
6 litres does not last long
Editor's note
The comparison problem in this category is units. Bosch publishes watts and PSI; Kärcher publishes bar and litres per hour. Roughly 120 bar equals 1,740 PSI, which means the Kärcher K3 at A$255.99 and the Bosch 1500W at A$169 sit in the same performance bracket — a fact neither spec sheet makes obvious. After pressure, the two numbers that change the job are flow rate, which carries loosened dirt away, and hose length, which decides how often you stop to move the machine. On a driveway, twenty metres of hose beats a few hundred extra PSI every time.
Our take
Buy the Bosch 1500W unless you have a specific reason not to — it is the cheapest here and the honest equal of machines costing half again as much. Choose the Kärcher K2 instead if you want quick-connect nozzles, the K3 for the longer hose and lighter body, and the Giraffe Tools G20 if you have a driveway and a wall. The Bosch Fontus is a different tool altogether and worth having only for jobs away from a tap. All six were confirmed in stock and shipping within Australia at the time of writing.
Frequently asked questions
How many PSI do I need in a pressure washer?
For cars, bikes, outdoor furniture and balconies, around 1,700 PSI is plenty — the Bosch 1500W and Kärcher K2 here both sit at that level. Concrete, brickwork and fencing benefit from more, which is where the Bosch 1900W at 1958 PSI or the Giraffe Tools at 2400 PSI earn their money. Going higher than you need mostly risks stripping paint and damaging soft timber.
How do you convert bar to PSI on a pressure washer?
Multiply bar by about 14.5. Kärcher's K3 lists a maximum of 120 bar, which is roughly 1,740 PSI — almost identical to the Bosch 1500W's stated 1740 PSI, despite the spec sheets looking nothing alike. Kärcher generally quotes bar and litres per hour while Bosch quotes watts and PSI, so converting is the only way to compare them honestly.
Does flow rate matter more than pressure?
They do different jobs. Pressure breaks the dirt loose; flow rate washes it away. On a large flat surface like a driveway a machine with good flow finishes noticeably faster than a high-pressure, low-flow one. Kärcher publishes the figure — 6.3 litres per minute on the K2, 380 litres per hour on the K3 — which is one advantage of its spec sheet.
Are cordless pressure washers any good?
For the right job. The Bosch Fontus here runs on an 18V battery and carries a 6-litre tank, so it works where there is no tap or power — bikes after a trail, surfboards, muddy boots at a campsite. It cannot approach mains pressure and the tank empties quickly, so treat it as a rinsing tool rather than a replacement for a corded washer.
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Affiliate disclosure: AUPicks may earn a commission from links on this page at no extra cost to you. This never influences our rankings. Curated by Bikram Nath · Last updated 2026-09-03.