📊 Calculator
PSI Calculator
Calculate cleaning units (CU) from PSI and GPM to find the right pressure washer for your task.
Enter Values
Cleaning Unit Guide
< 4000 CU
Light Duty
Cars, bikes, patio furniture
4000–8000 CU
Medium Duty
Decks, fences, driveways
8000–12000 CU
Heavy Duty
Concrete, stripping paint
12000+ CU
Professional
Commercial, industrial cleaning
How It Works
Cleaning Units (CU) = PSI × GPM. This metric helps you compare pressure washers by combining water pressure and flow rate into a single number. Higher CU means more cleaning power.