How Cleaning Units work
PSI × GPM, soft-surface caps, and when to stop at NO_MATCH.
PSI × GPM sizing
Pressure washer sizing calculator
Enter a job code. Get an electric 2000×1.76, gas 3400×2.6, or gas 4400×4.0 Cleaning Units class — or NO_MATCH when the consumer ladder cannot cover it.
PSI × GPM sizing
Result
Cleaning Units = PSI × GPM. Match smallest class meeting min CU within max PSI. Soft jobs exclude high-PSI gas units.
From measurement to decision
Open the full calculator
Same tool with room for examples.
3520 vs 8840 vs 17600 CU
When each washer class fits — and when none do.
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