Calculate Your Nozzle Size
Using the calculator below, enter your rated GPM and PSI of your pressure washer. Once the "Nozzle Size" has populated, round to the nearest available size.
Calculate Your Nozzle Size
Nozzle Size: --
Rounded automatically to the nearest half size (e.g. 2.26 → 2.5)
Example: 2.58 would round to the nearest half size we offer, which is 2.5.
Let’s say the calculator says you're in between sizes, and the "Nozzle Size" is 2.79. Rounding up to a 3.0 nozzle would optimize your GPM but decrease your PSI. Rounding down to 2.5 will optimize your PSI but lower your GPM. This is “dealer’s choice.”
In general:
- Home users washing cars typically round up to optimize GPM.
- Industrial cleaners removing paint or rust typically round down to maximize PSI.