Pipe Reference Chart
Confused about wall thickness and pipe schedules? Please use the following ANSI pipe dimension weight chart. For your convenience STANDARD EXTRA HEAVY
1/4"
1/8"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
1/8
0.405
5
0.035
0.335
1/4
0.54
5
0.049
0.442
1/8
0.405
10
0.049
0.307
1/4
0.54
10
0.065
0.41
1/8
0.405
40
0.068
0.269
1/4
0.54
40
0.088
0.364
1/8
0.405
80
0.095
0.215
1/4
0.54
80
0.119
0.302
3/8"
1/2"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
3/8
0.675
5
0.049
0.577
1/2
0.84
5
0.065
0.71
3/8
0.675
10
0.065
0.545
1/2
0.84
10
0.083
0.674
3/8
0.675
40
0.091
0.493
1/2
0.84
40
0.109
0.622
3/8
0.675
80
0.126
0.423
1/2
0.84
80
0.147
0.546
1/2
0.84
160
0.187
0.464
1/2
0.84
XXHY
0.294
0.252
3/4"
1"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
3/4
1.05
5
0.065
0.92
1
1.315
5
0.065
1.185
3/4
1.05
10
0.083
0.884
1
1.315
0.072
1.171
3/4
1.05
40
0.113
0.824
1
1.315
0.083
1.149
3/4
1.05
80
0.154
0.742
1
1.315
0.095
1.125
3/4
1.05
160
0.218
0.612
1
1.315
10
0.109
1.097
3/4
1.05
XXHY
0.308
0.434
1
1.315
0.125
1.065
1
1.315
40
0.133
1.049
1
1.315
80
0.179
0.957
1
1.315
160
0.25
0.815
1
1.315
XXHY
0.358
0.599
1-1/4"
1-1/2"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
1 1/4
1.66
5
0.065
1.53
1 1/2
1.9
5
0.065
1.774
1 1/4
1.66
0.072
1.516
1 1/2
1.9
0.083
1.734
1 1/4
1.66
0.083
1.494
1 1/2
1.9
0.095
1.71
1 1/4
1.66
0.095
1.47
1 1/2
1.9
10
0.109
1.682
1 1/4
1.66
10
0.109
1.442
1 1/2
1.9
0.125
1.65
1 1/4
1.66
0.125
1.41
1 1/2
1.9
40
0.145
1.61
1 1/4
1.66
40
0.14
1.38
1 1/2
1.9
80
0.2
1.5
1 1/4
1.66
80
0.191
1.278
1 1/2
1.9
160
0.281
1.338
1 1/4
1.66
160
0.25
1.16
1 1/2
1.9
XXHY
0.4
1.1
1 1/4
1.66
XXHY
0.382
0.896
2"
2-1/2"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
2
2.375
5
0.065
2.245
2 1/2
2.875
0.078
2.719
2
2.375
0.078
2.219
2 1/2
2.875
5
0.083
2.709
2
2.375
0.083
2.209
2 1/2
2.875
0.094
2.687
2
2.375
0.095
2.185
2 1/2
2.875
0.109
2.657
2
2.375
10
0.109
2.157
2 1/2
2.875
10
0.12
2.635
2
2.375
0.125
2.125
2 1/2
2.875
0.125
2.625
2
2.375
0.134
2.107
2 1/2
2.875
0.141
2.593
2
2.375
0.141
2.093
2 1/2
2.875
0.154
2.567
2
2.375
40
0.154
2.067
2 1/2
2.875
0.156
2.563
2
2.375
0.172
2.031
2 1/2
2.875
0.172
2.531
2
2.375
0.188
1.999
2 1/2
2.875
0.188
2.499
2
2.375
80
0.218
1.939
2 1/2
2.875
40
0.203
2.469
2
2.375
0.281
1.813
2 1/2
2.875
0.216
2.443
2
2.375
160
0.343
1.687
2 1/2
2.875
0.25
2.375
2
2.375
XXHY
0.436
1.5
2 1/2
2.875
80
0.276
2.323
2 1/2
2.875
160
0.375
2.125
2 1/2
2.875
XXHY
0.552
1.771
3"
3-1/2"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
3
3.5
5
0.078
3.344
3 1/2
4
5
0.083
3.834
3
3.5
0.083
3.334
3 1/2
4
0.094
3.812
3
3.5
0.095
3.31
3 1/2
4
0.109
3.782
3
3.5
0.109
3.282
3 1/2
4
10
0.12
3.76
3
3.5
10
0.12
3.26
3 1/2
4
0.125
3.75
3
3.5
0.125
3.25
3 1/2
4
0.141
3.718
3
3.5
0.141
3.218
3 1/2
4
0.156
3.688
3
3.5
0.156
3.188
3 1/2
4
0.172
3.656
3
3.5
0.172
3.156
3 1/2
4
0.188
3.624
3
3.5
0.188
3.124
3 1/2
4
40
0.226
3.548
3
3.5
40
0.216
3.068
3 1/2
4
0.25
3.5
3
3.5
0.25
3
3 1/2
4
0.281
3.438
3
3.5
0.281
2.938
3 1/2
4
80
0.318
3.364
3
3.5
80
0.3
2.9
3 1/2
4
XXHY
0.636
2.728
3
3.5
160
0.437
2.624
3
3.5
XXHY
0.6
2.3
4"
5"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
4
4.5
5
0.083
4.334
5
5.563
0.083
5.397
4
4.5
0.094
4.312
5
5.563
0.094
5.375
4
4.5
0.109
4.282
5
5.563
5
0.109
5.345
4
4.5
10
0.12
4.26
5
5.563
0.125
5.313
4
4.5
0.125
4.25
5
5.563
10
0.134
5.295
4
4.5
0.141
4.218
5
5.563
0.141
5.281
4
4.5
0.156
4.188
5
5.563
0.156
5.251
4
4.5
0.172
4.156
5
5.563
0.188
5.187
4
4.5
0.188
4.124
5
5.563
0.219
5.125
4
4.5
0.203
4.094
5
5.563
40
0.258
5.047
4
4.5
0.219
4.062
5
5.563
0.281
5.001
4
4.5
40
0.237
4.026
5
5.563
0.312
4.939
4
4.5
0.25
4
5
5.563
0.344
4.875
4
4.5
60
0.281
3.938
5
5.563
80
0.375
4.813
4
4.5
0.312
3.876
5
5.563
120
0.5
4.563
4
4.5
80
0.337
3.826
5
5.563
160
0.625
4.313
4
4.5
120
0.438
3.624
5
5.563
XXHY
0.75
4.063
4
4.5
160
0.531
3.438
4
4.5
XXHY
0.674
3.152
6"
8"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
6
6.625
0.075
6.475
8
8.625
0.09
8.445
6
6.625
0.083
6.459
8
8.625
0.105
8.415
6
6.625
0.094
6.437
8
8.625
5
0.109
8.407
6
6.625
5
0.109
6.407
8
8.625
0.12
8.385
6
6.625
0.12
6.385
8
8.625
0.125
8.375
6
6.625
0.125
6.375
8
8.625
0.135
8.355
6
6.625
10
0.134
6.357
8
8.625
0.141
8.343
6
6.625
0.141
6.343
8
8.625
10
0.148
8.329
6
6.625
0.156
6.313
8
8.625
0.156
8.313
6
6.625
0.164
6.297
8
8.625
0.164
8.297
6
6.625
0.172
6.281
8
8.625
0.172
8.281
6
6.625
0.188
6.249
8
8.625
0.188
8.25
6
6.625
0.203
6.219
8
8.625
0.203
8.219
6
6.625
0.219
6.187
8
8.625
0.219
8.187
6
6.625
0.237
6.151
8
8.625
0.237
8.151
6
6.625
0.25
6.125
8
8.625
20
0.25
8.125
6
6.625
40
0.28
6.065
8
8.625
30
0.277
8.071
6
6.625
0.312
6.001
8
8.625
0.312
8.001
6
6.625
0.344
5.937
8
8.625
40
0.322
7.981
6
6.625
0.375
5.875
8
8.625
0.344
7.937
6
6.625
80
0.432
5.761
8
8.625
0.375
7.875
6
6.625
0.5
5.625
8
8.625
60
0.406
7.813
6
6.625
120
0.562
5.501
8
8.625
0.438
7.749
6
6.625
0.625
5.375
8
8.625
80
0.5
7.625
6
6.625
160
0.719
5.187
8
8.625
0.562
7.501
6
6.625
XXHY
0.864
4.897
8
8.625
100
0.593
7.437
6
6.625
1
4.625
8
8.625
0.625
7.375
6
6.625
1.125
4.375
8
8.625
120
0.719
7.187
8
8.625
140
0.812
7.001
8
8.625
XXHY
0.875
6.875
8
8.625
160
0.906
6.813
10"
12"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
10
10.75
0.109
10.532
12
12.75
0.141
12.469
10
10.75
0.125
10.5
12
12.75
0.156
12.438
10
10.75
5
0.134
10.48
12
12.75
0.172
12.406
10
10.75
0.141
10.468
12
12.75
0.188
12.374
10
10.75
0.156
10.438
12
12.75
0.203
12.344
10
10.75
10
0.165
10.42
12
12.75
0.219
12.312
10
10.75
0.172
10.406
12
12.75
0.237
12.276
10
10.75
0.188
10.374
12
12.75
20
0.25
12.25
10
10.75
0.203
10.344
12
12.75
0.281
12.188
10
10.75
0.219
10.312
12
12.75
0.312
12.126
10
10.75
0.237
10.276
12
12.75
30
0.33
12.09
10
10.75
20
0.25
10.25
12
12.75
0.344
12.062
10
10.75
0.279
10.192
12
12.75
STD
0.375
12
10
10.75
30
0.307
10.136
12
12.75
40
0.406
11.938
10
10.75
0.344
10.062
12
12.75
0.438
11.874
10
10.75
40
0.365
10.02
12
12.75
XHY
0.5
11.75
10
10.75
0.375
10
12
12.75
60
0.562
11.626
10
10.75
0.438
9.874
12
12.75
0.625
11.5
10
10.75
60
0.5
9.75
12
12.75
80
0.688
11.374
10
10.75
0.562
9.626
12
12.75
0.75
11.25
10
10.75
80
0.593
9.562
12
12.75
100
0.844
11.062
10
10.75
0.625
9.5
12
12.75
120 / XXHY
1
10.75
10
10.75
100
0.719
9.312
12
12.75
140
1.125
10.5
10
10.75
0.812
9.126
12
12.75
160
1.312
10.126
10
10.75
120
0.844
9.062
10
10.75
140 / XXHY
1
8.75
10
10.75
160
1.125
8.5
14"
16"
NPS
O.D.
Sch #
Wall
I.D.
NPS
O.D.
Sch #
Wall
I.D.
14
14
0.188
13.624
16
16
0.188
15.624
14
14
0.203
13.594
16
16
0.203
15.594
14
14
0.21
13.58
16
16
0.219
15.562
14
14
0.219
13.562
16
16
0.237
15.526
14
14
0.237
13.526
16
16
10
0.25
15.5
14
14
10
0.25
13.5
16
16
0.281
15.438
14
14
0.281
13.438
16
16
20
0.312
15.376
14
14
20
0.312
13.376
16
16
0.344
15.312
14
14
0.344
13.312
16
16
30
0.375
15.25
14
14
30
0.375
13.25
16
16
0.406
15.188
14
14
0.406
13.188
16
16
0.438
15.124
14
14
40
0.438
13.124
16
16
0.469
15.062
14
14
0.459
13.082
16
16
40 / XHY
0.5
15
14
14
XHY
0.5
13
16
16
0.562
14.876
14
14
0.562
12.876
16
16
0.625
14.75
14
14
60
0.594
12.812
16
16
60
0.656
14.688
14
14
0.625
12.75
16
16
0.688
14.624
14
14
0.688
12.624
16
16
0.75
14.5
14
14
80
0.75
12.5
16
16
80
0.844
14.376
14
14
0.812
12.376
16
16
100
1.031
13.938
14
14
100
0.938
12.124
16
16
120
1.219
13.562
14
14
120
1.094
11.812
16
16
140
1.438
13.124
14
14
140
1.25
11.5
16
16
160
1.594
12.812
14
14
160
1.406
11.188
