Water Flow Pressure Loss - 4" through 16" Hose Chart

Go to 1/2" through 3" hose chart

(PSI per 100 feet of Hose)
Flow of
water in
US Gal./min
Flow of
water in
cu. ft/sec.
Actual Internal Diameter, Inches
4 6810121416
100
125
150
175
200
.223
.278
.334
.390
.446
.26
.40
.54
.70
.90

.10
.13
    
225
250
275
300
325
.501
.557
.613
.668
.724
1.08
1.34
1.60
1.84
2.04
.16
.19
.24
.28
.33
     
350
375
400
425
450
.780
.836
.891
.947
1.00
2.30
2.80
3.10
3.40
3.80
.37
.44
.49
.54
.60
     
475
500
550
600
650
1.06
1.11
1.22
1.34
1.45
4.25
4.60
5.60
6.60
7.60
.70
.78
.93
1.10
1.30
.16
.18
.23
.27
     
700
750
800
850
900
1.56
1.67
1.78
1.89
2.00
8.60
9.60
10.80
12.00
1.50
1.70
1.90
2.20
2.40
.30
.34
.39
.44
.49
    
950
1000
1100
1200
1300
2.12
2.23
2.45
2.67
2.90
 2.60
2.80
3.20
3.70
4.50
.54
.59
.66
.74
.88
.19
.23
.27
.31
   
1400
1500
1600
1800
2000
3.12
3.34
3.56
4.01
4.45
 5.30
6.20
7.00
8.80
16.50
1.10
1.25
1.40
1.80
2.20
.35
.40
.45
.54
.64
.15
.17
.19
.24
.29
.14  
2500
3000
3500
4000
4500
5.57
6.68
7.80
8.91
10.03
   3.40
4.50
6.20
8.20
10.20
.98
1.40
1.90
2.40
3.00
.42
.58
.79
1.00
1.25
.21
.29
.39
.50
.62
.14
.18
.23
.28
5000
6000
7000
8000
9000
11.14
13.37
15.60
17.82
20.05
   3.80
5.20
7.00
9.20
11.50
1.50
2.10
2.80
3.70
4.60
.74
1.10
1.40
1.80
2.30
.34
.46
.62
.80
1.00
10000
12000
14000
16000
18000
20000
22.28
26.74
31.19
35.65
40.10
44.56
     5.70
6.70
10.00
13.50
2.80
3.70
5.00
6.80
8.80
11.00
1.25
1.70
2.40
3.30
4.40
5.50

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