Pressure Washer Nozzle Selection Guide

Also see

Pressure Washer Trouble Shooting

Use the chart below to help with pressure washer spray tip / nozzle selection. You will need to know how many gallons per minute your pressure washer puts out as well as the maximum PSI rating.

Nozzle / Tip Size Selection Chart

Determine the proper nozzle size by the pressure washer’s GPM (Gallons Per Minute) at a specific PSI . If the nozzle size is too small, your equipment can be damaged . If the nozzle size is to large, your cleaning ability will be reduced. Please note that nozzle fan degree does not effect nozzle size selection.

Nozzle Size		PSI (Pounds per Square Inch)
Nozzle Size	Hole Size	500	750	1000	1250	1500	1750	2000	2250	2500	2750	3000	3250	3500	3750	4000	4500	5000
2	.034"/0.86mm	0.71	0.87	1	1.12	1.22	1.32	1.41	1.5	1.58	1.66	1.73	1.8	1.87	1.94	2	2.12	2.24
2.5	.042"/1.07mm	0.88	1.08	1.25	1.4	1.53	1.65	1.77	1.88	1.98	2.07	2.17	2.25	2.34	2.42	2.5	2.65	2.8
3	.043"/1.09mm	1.06	1.3	1.5	1.68	1.84	1.98	2.12	2.25	2.37	2.49	2.6	2.7	2.81	2.9	3	3.18	3.35
3.5	.048"/1.22mm	1.24	1.52	1.75	1.96	2.14	2.32	2.47	2.63	2.77	2.9	3.03	3.15	3.27	3.39	3.5	3.71	3.91
4	.052"/1.32mm	1.41	1.73	2	2.24	2.45	2.65	2.83	3	3.16	3.32	3.46	3.61	3.74	3.87	4	4.24	4.47
4.5	.055"/1.40mm	1.59	1.95	2.25	2.52	2.76	2.98	3.18	3.38	3.56	3.73	3.9	4.06	4.21	4.36	4.5	4.77	5.03
5	.057"/1.45mm	1.77	2.17	2.5	2.8	3.06	3.31	3.54	3.75	3.95	4.15	4.33	4.51	4.68	4.84	5	5.3	5.59
5.5	.060"/1.52mm	1.94	2.38	2.75	3.07	3.37	3.64	3.89	4.13	4.35	4.56	4.76	4.96	5.14	5.33	5.5	5.83	6.15
6	.062"/1.57mm	2.12	2.6	3	3.35	3.67	3.97	4.24	4.5	4.74	4.97	5.2	5.41	5.61	5.81	6	6.36	6.71
6.5	.064"/1.63mm	2.3	2.81	3.25	3.63	3.98	4.3	4.6	4.88	5.14	5.39	5.63	5.86	6.08	6.29	6.5	6.89	7.27
7	.067"/1.70mm	2.47	3.03	3.5	3.91	4.29	4.63	4.95	5.25	5.53	5.8	6.06	6.31	6.55	6.78	7	7.42	7.83
7.5	.070"/1.78mm	2.65	3.25	3.75	4.19	4.59	4.96	5.3	5.63	5.93	6.22	6.5	6.76	7.02	7.26	7.5	7.95	8.39
8	.072"/1.83mm	2.83	3.46	4	4.47	4.9	5.29	5.66	6	6.32	6.63	6.93	7.21	7.48	7.75	8	8.49	8.94
8.5	.074"/1.88mm	3.01	3.68	4.25	4.75	5.21	5.62	6.01	6.38	6.72	7.05	7.36	7.66	7.95	8.23	8.5	9.02	9.5
9	.076"/1.93mm	3.18	3.9	4.5	5.03	5.51	5.95	6.36	6.75	7.12	7.46	7.79	8.11	8.42	8.71	9	9.55	10.06
9.5	.078"/1.98mm	3.36	4.11	4.75	5.31	5.82	6.28	6.72	7.13	7.51	7.88	8.23	8.56	8.89	9.2	9.5	10.08	10.62
10	.080"/2.03mm	3.54	4.33	5	5.59	6.12	6.61	7.07	7.5	7.91	8.29	8.66	9.01	9.35	9.68	10	10.61	11.18
11	.083"/2.11mm	3.89	4.76	5.5	6.15	6.74	7.28	7.78	8.25	8.7	9.12	9.53	9.92	10.29	10.65	11	11.67	12.3
12	.087"/2.21mm	4.24	5.2	6	6.71	7.35	7.94	8.49	9	9.49	9.95	10.39	10.82	11.22	11.62	12	12.73	13.42
12.5	.089"/2.26mm	4.42	5.41	6.25	6.99	7.65	8.27	8.84	9.38	9.88	10.36	10.83	11.27	11.69	12.1	12.5	13.26	13.98
13	.091"/2.31mm	4.6	5.63	6.5	7.27	7.96	8.6	9.19	9.75	10.28	10.78	11.26	11.72	12.16	12.59	13	13.79	14.53
15	.096"/2.44mm	5.3	6.5	7.5	8.39	9.19	9.92	10.61	11.25	11.86	12.44	12.99	13.52	14.03	14.52	15	15.91	16.77
20	.109"/2.77mm	7.07	8.66	10	11.18	12.25	13.23	14.14	15	15.81	16.58	17.32	18.03	18.71	19.36	20	21.21	22.36
25	.125"/3.18mm	8.84	10.83	12.5	13.98	15.31	16.54	17.68	18.75	19.76	20.73	21.65	22.53	23.39	24.21	25	26.52	27.95
30	.141"/3.58mm	10.61	12.99	15	16.77	18.37	19.84	21.21	22.5	23.72	24.87	25.98	27.04	28.06	29.05	30	31.82	33.54
40	.156"/3.96mm	14.14	17.32	20	22.36	24.49	26.46	28.28	30	31.62	33.17	34.64	36.06	37.42	38.73	40	42.43	44.72
50	.172"/4.37mm	17.68	21.65	25	27.95	30.62	33.07	35.36	37.5	39.53	41.46	43.3	45.07	46.77	48.41	50	53.03	55.9
60	.188"/4.78mm	21.21	25.98	30	33.54	36.74	39.69	42.43	45	47.43