Line Pipe Dimensions, Weight and Schedule Chart (API 5L)

The Line Pipe Dimensions, Weight and Schedule Chart is useful for determining the size, outer diameter, inner diameter, schedule (thickness), wall, and weight of metal pipes. One can use the chart to accurately identify the best pipe for certain oil drilling or completion operations.

Line Pipe Dimensions, Weight and Schedule Table Analysis

The Table for Line Pipe Dimensions, Weight and Schedule shows the six columns for pipe size, outer diameter, inner diameter, schedule, wall and weight (in pounds and feet). For each pipe size, there are corresponding dimensional values. The Line Pipe Dimensions Table also shows that an increment in pipe size raises the wall thickness or schedule and weight. On the other hand, a decrease in pipe schedule is correlated with increased inner diameter, while the outer diameter remains constant.

Line Pipe Dimensions, Weight and Schedule Chart (API 5L)

wdt_ID	NPS (in)	OD (in)	SCH ASME	SCH ASME	SCH ASME	Wall Thkns (in)	Wall Thkns (mm)	Wgt (lb/ft)	Wgt (kg/m)	ID (in)	ID (mm)
1	1/8	0.405			10S	0.049	1.24	0.19	0.28	0.307	7.82
2			STD	40	40S	0.068	1.73	0.24	0.37	0.269	6.84
3			XS	80	80S	0.095	2.41	0.31	0.47	0.215	5.84
4	1/4	0.54	10		10S	0.065	1.65	0.33	0.49	0.41	10.4
5			STD	40	40S	0.088	2.24	0.43	0.63	0.364	9.22
6			XS	80	80S	0.119	3.02	0.54	0.8	0.364	7.66
7	3/8	0.675	10		10S	0.065	1.65	0.42	0.63	0.545	13.80
8			STD	40	40S	0.091	2.31	0.57	0.84	0.493	12.48
9			XS	80	80S	0.126	3.2	0.74	1.1	0.423	10.7
10	3/4	1.050	5		5S	0.065	1.65	0.54	0.80	0.710	18.00
11			10		10S	0.083	2.11	0.67	1.00	0.674	17.08
12			STD	40	40S	0.109	2.77	0.85	1.27	0.622	15.76
13			XS	80	80S	0.147	3.73	1.09	1.62	0.546	13.84
14			160			0.188	4.78	1.31	1.95	0.464	11.74
15			XX			0.294	7.47	1.72	2.55	0.252	6.36
16	1	1.315	5		5S	0.065	1.65	0.87	1.29	1.185	30.1
17			10		10S	0.109	2.77	1.41	2.09	1.097	27.86
18			STD	40	40S	0.133	3.38	1.68	2.5	1.049	26.64
19			XS	80	80S	0.179	4.55	2.17	3.24	0.957	24.3
20			160			0.25	6.35	2.85	4.24	0.815	20.7
21			XX			0.358	9.09	3.66	5.45	0.599	15.22
22	1-1/4	1.660	5		5S	0.065	1.65	1.11	1.65	1.53	38.9
23			10		10S	0.109	2.77	1.81	2.69	1.442	36.66
24			STD	40	40S	0.14	3.56	2.27	3.39	1.38	35.08
25			XS	80	80S	0.191	4.85	3	4.47	1.278	32.5
26			160			0.25	6.35	3.77	5.61	1.16	29.5
27			XX			0.382	9.7	5.22	7.77	0.896	22.8
28	1-1/2	1.900	5		5S	0.065	1.65	1.28	1.90	1.770	45.00
29			10		10S	0.109	2.77	2.09	3.11	1.682	42.76
30			STD	40	40S	0.145	3.68	2.72	4.05	1.610	40.94
31			XS	80	80S	0.200	5.08	3.63	5.41	1.500	38.14
32			160			0.281	7.14	4.86	7.25	1.338	34.02
33			XX			0.400	10.15	6.41	9.55	1.100	28.00
34	2	2.375	5		5S	0.065	1.65	1.61	2.39	2.245	57
35			10		10S	0.109	2.77	2.64	3.93	2.157	54.76
36			STD	40	40S	0.154	3.91	3.66	5.44	2.067	52.48
37			XS	80	80S	0.218	5.54	5.03	7.48	1.939	49.22
38			160			0.344	8.74	7.47	11.11	1.687	42.82
39			XX			0.436	11.07	9.04	13.44	1.503	38.16
40	2-1/2	2.875	5		5S	0.083	2.11	2.48	3.69	2.709	68.78
41			10		10S	0.12	3.05	3.53	5.26	2.635	66.9
42			STD	40	40S	0.203	5.16	5.8	8.63	2.469	62.68
43			XS	80	80S	0.276	7.01	7.67	11.41	2.323	58.98
44			160			0.375	9.53	10.02	14.92	2.125	53.94
45			XX			0.552	14.02	13.71	20.39	1.771	44.96
46	3	3.5	5		5S	0.083	2.11	3.03	4.52	3.334	84.68
47			10		10S	0.120	3.05	4.34	6.46	3.260	82.80
48			STD	40	40S	0.216	5.49	7.58	11.29	3.068	77.92
49			XS	80	80S	0.300	7.62	10.26	15.27	2.900	73.66
50			160			0.438	11.13	14.34	21.35	2.624	66.64
51			XX			0.600	15.24	18.60	27.68	2.300	58.42
52	3-1/2	4.000	5		5S	0.083	2.11	3.48	5.18	3.834	97.38
53			10		10S	0.120	3.05	4.98	7.41	3.760	95.50
54			STD	40	40S	0.226	5.74	9.12	13.57	3.548	90.12
55			XS	80	80S	0.318	8.08	12.52	18.64	3.364	85.44
56			XX			0.636	16.15	22.87	34.03	2.728	69.30
57	4	4.500	5		5S	0.083	2.11	3.92	5.84	4.334	110.08
58			10		10S	0.120	3.05	5.62	8.37	4.260	108.20
59						0.156	3.96	7.24	10.78	4.188	106.38
60						0.188	4.78	8.67	12.91	4.124	104.74
61			STD	40	40S	0.237	6.02	10.80	16.08	4.026	102.26
62			XS	80	80S	0.337	8.56	15.00	22.32	3.826	97.18
63			120			0.438	11.13	19.02	28.32	3.624	92.04
64			160			0.531	13.49	22.53	33.54	3.438	87.32
65			XX			0.674	17.12	27.57	41.03	3.152	80.06
66	4-1/2	5.000	STD	40	40S	0.247	6.27	12.55	18.67	4.506	114.46
67			XS	80	80S	0.355	9.02	17.63	26.24	4.290	108.96
68			XX			0.710	18.03	32.56	48.45	3.580	90.94
69	5	5.563	5		5S	0.109	2.77	6.36	9.46	5.345	135.76
70			10		10S	0.134	3.40	7.78	11.56	5.295	134.50
71			STD	40	40S	0.258	6.55	14.63	21.77	5.047	128.20
72			XS	80	80S	0.375	9.53	20.80	30.97	4.813	122.24
73			120			0.500	12.70	27.06	40.28	4.563	115.90
74			160			0.625	15.88	32.99	49.12	4.313	109.54
75			XX			0.750	19.05	38.59	57.43	4.063	103.20
76	6	6.625	5		5S	0.109	2.77	7.59	11.31	6.407	162.76
77			10		10S	0.134	3.40	9.30	13.83	6.357	161.50
78						0.188	4.78	12.94	19.28	6.249	158.74
79			STD	40	40S	0.280	7.11	18.99	28.26	6.065	154.08
80			XS	80	80S	0.432	10.97	28.60	42.56	5.761	146.36
81			120			0.562	14.27	36.43	54.21	5.501	139.76
82			160			0.719	18.26	45.39	67.57	5.187	131.78
83			XX			0.864	21.95	53.21	79.22	4.897	124.40
84	7	7.625	STD		40S	0.301	7.65	23.57	35.10	7.023	178.40
85			XS		80S	0.500	12.70	38.08	56.69	6.625	168.30
86			XX			0.875	22.23	63.14	94.00	5.875	149.24
87	8	8.625			5S	0.109	2.77	9.92	14.78	8.407	213.56
88			10		10S	0.148	3.76	13.41	19.97	8.329	211.58
89			20			0.250	6.35	22.38	33.32	8.125	206.40
90			30			0.277	7.04	24.72	36.82	8.071	205.02
91			STD	40	40S	0.322	8.18	28.58	42.55	7.981	202.74
92			60			0.406	10.31	35.67	53.09	7.813	198.48
93			XS	80	80S	0.500	12.70	43.43	64.64	7.625	193.70
94			100			0.594	15.09	51.00	75.92	7.437	188.92
95			120			0.719	18.26	60.77	90.44	7.187	182.58
96			140			0.812	20.62	67.82	100.93	7.001	177.86
97			XX			0.875	22.23	72.49	107.93	6.875	174.64
98			160			0.906	23.01	74.76	111.27	6.813	173.08
99	9	9.625	STD	40	40S	0.342	8.69	33.94	50.54	8.941	227.12
100			XS	80	80S	0.500	12.70	48.77	72.60	8.625	219.10

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Line Pipe Dimensions, Weight and Schedule Chart (API 5L)

wdt_ID	NPS (in)	OD (in)	SCH ASME	SCH ASME	SCH ASME	Wall Thkns (in)	Wall Thkns (mm)	Wgt (lb/ft)	Wgt (kg/m)	ID (in)	ID (mm)
1	1/8	0.405			10S	0.049	1.24	0.19	0.28	0.307	7.82
2			STD	40	40S	0.068	1.73	0.24	0.37	0.269	6.84
3			XS	80	80S	0.095	2.41	0.31	0.47	0.215	5.84
4	1/4	0.54	10		10S	0.065	1.65	0.33	0.49	0.41	10.4
5			STD	40	40S	0.088	2.24	0.43	0.63	0.364	9.22
6			XS	80	80S	0.119	3.02	0.54	0.8	0.364	7.66
7	3/8	0.675	10		10S	0.065	1.65	0.42	0.63	0.545	13.80
8			STD	40	40S	0.091	2.31	0.57	0.84	0.493	12.48
9			XS	80	80S	0.126	3.2	0.74	1.1	0.423	10.7
10	3/4	1.050	5		5S	0.065	1.65	0.54	0.80	0.710	18.00
11			10		10S	0.083	2.11	0.67	1.00	0.674	17.08
12			STD	40	40S	0.109	2.77	0.85	1.27	0.622	15.76
13			XS	80	80S	0.147	3.73	1.09	1.62	0.546	13.84
14			160			0.188	4.78	1.31	1.95	0.464	11.74
15			XX			0.294	7.47	1.72	2.55	0.252	6.36
16	1	1.315	5		5S	0.065	1.65	0.87	1.29	1.185	30.1
17			10		10S	0.109	2.77	1.41	2.09	1.097	27.86
18			STD	40	40S	0.133	3.38	1.68	2.5	1.049	26.64
19			XS	80	80S	0.179	4.55	2.17	3.24	0.957	24.3
20			160			0.25	6.35	2.85	4.24	0.815	20.7
21			XX			0.358	9.09	3.66	5.45	0.599	15.22
22	1-1/4	1.660	5		5S	0.065	1.65	1.11	1.65	1.53	38.9
23			10		10S	0.109	2.77	1.81	2.69	1.442	36.66
24			STD	40	40S	0.14	3.56	2.27	3.39	1.38	35.08
25			XS	80	80S	0.191	4.85	3	4.47	1.278	32.5
26			160			0.25	6.35	3.77	5.61	1.16	29.5
27			XX			0.382	9.7	5.22	7.77	0.896	22.8
28	1-1/2	1.900	5		5S	0.065	1.65	1.28	1.90	1.770	45.00
29			10		10S	0.109	2.77	2.09	3.11	1.682	42.76
30			STD	40	40S	0.145	3.68	2.72	4.05	1.610	40.94
31			XS	80	80S	0.200	5.08	3.63	5.41	1.500	38.14
32			160			0.281	7.14	4.86	7.25	1.338	34.02
33			XX			0.400	10.15	6.41	9.55	1.100	28.00
34	2	2.375	5		5S	0.065	1.65	1.61	2.39	2.245	57
35			10		10S	0.109	2.77	2.64	3.93	2.157	54.76
36			STD	40	40S	0.154	3.91	3.66	5.44	2.067	52.48
37			XS	80	80S	0.218	5.54	5.03	7.48	1.939	49.22
38			160			0.344	8.74	7.47	11.11	1.687	42.82
39			XX			0.436	11.07	9.04	13.44	1.503	38.16
40	2-1/2	2.875	5		5S	0.083	2.11	2.48	3.69	2.709	68.78
41			10		10S	0.12	3.05	3.53	5.26	2.635	66.9
42			STD	40	40S	0.203	5.16	5.8	8.63	2.469	62.68
43			XS	80	80S	0.276	7.01	7.67	11.41	2.323	58.98
44			160			0.375	9.53	10.02	14.92	2.125	53.94
45			XX			0.552	14.02	13.71	20.39	1.771	44.96
46	3	3.5	5		5S	0.083	2.11	3.03	4.52	3.334	84.68
47			10		10S	0.120	3.05	4.34	6.46	3.260	82.80
48			STD	40	40S	0.216	5.49	7.58	11.29	3.068	77.92
49			XS	80	80S	0.300	7.62	10.26	15.27	2.900	73.66
50			160			0.438	11.13	14.34	21.35	2.624	66.64
51			XX			0.600	15.24	18.60	27.68	2.300	58.42
52	3-1/2	4.000	5		5S	0.083	2.11	3.48	5.18	3.834	97.38
53			10		10S	0.120	3.05	4.98	7.41	3.760	95.50
54			STD	40	40S	0.226	5.74	9.12	13.57	3.548	90.12
55			XS	80	80S	0.318	8.08	12.52	18.64	3.364	85.44
56			XX			0.636	16.15	22.87	34.03	2.728	69.30
57	4	4.500	5		5S	0.083	2.11	3.92	5.84	4.334	110.08
58			10		10S	0.120	3.05	5.62	8.37	4.260	108.20
59						0.156	3.96	7.24	10.78	4.188	106.38
60						0.188	4.78	8.67	12.91	4.124	104.74
61			STD	40	40S	0.237	6.02	10.80	16.08	4.026	102.26
62			XS	80	80S	0.337	8.56	15.00	22.32	3.826	97.18
63			120			0.438	11.13	19.02	28.32	3.624	92.04
64			160			0.531	13.49	22.53	33.54	3.438	87.32
65			XX			0.674	17.12	27.57	41.03	3.152	80.06
66	4-1/2	5.000	STD	40	40S	0.247	6.27	12.55	18.67	4.506	114.46
67			XS	80	80S	0.355	9.02	17.63	26.24	4.290	108.96
68			XX			0.710	18.03	32.56	48.45	3.580	90.94
69	5	5.563	5		5S	0.109	2.77	6.36	9.46	5.345	135.76
70			10		10S	0.134	3.40	7.78	11.56	5.295	134.50
71			STD	40	40S	0.258	6.55	14.63	21.77	5.047	128.20
72			XS	80	80S	0.375	9.53	20.80	30.97	4.813	122.24
73			120			0.500	12.70	27.06	40.28	4.563	115.90
74			160			0.625	15.88	32.99	49.12	4.313	109.54
75			XX			0.750	19.05	38.59	57.43	4.063	103.20
76	6	6.625	5		5S	0.109	2.77	7.59	11.31	6.407	162.76
77			10		10S	0.134	3.40	9.30	13.83	6.357	161.50
78						0.188	4.78	12.94	19.28	6.249	158.74
79			STD	40	40S	0.280	7.11	18.99	28.26	6.065	154.08
80			XS	80	80S	0.432	10.97	28.60	42.56	5.761	146.36
81			120			0.562	14.27	36.43	54.21	5.501	139.76
82			160			0.719	18.26	45.39	67.57	5.187	131.78
83			XX			0.864	21.95	53.21	79.22	4.897	124.40
84	7	7.625	STD		40S	0.301	7.65	23.57	35.10	7.023	178.40
85			XS		80S	0.500	12.70	38.08	56.69	6.625	168.30
86			XX			0.875	22.23	63.14	94.00	5.875	149.24
87	8	8.625			5S	0.109	2.77	9.92	14.78	8.407	213.56
88			10		10S	0.148	3.76	13.41	19.97	8.329	211.58
89			20			0.250	6.35	22.38	33.32	8.125	206.40
90			30			0.277	7.04	24.72	36.82	8.071	205.02
91			STD	40	40S	0.322	8.18	28.58	42.55	7.981	202.74
92			60			0.406	10.31	35.67	53.09	7.813	198.48
93			XS	80	80S	0.500	12.70	43.43	64.64	7.625	193.70
94			100			0.594	15.09	51.00	75.92	7.437	188.92
95			120			0.719	18.26	60.77	90.44	7.187	182.58
96			140			0.812	20.62	67.82	100.93	7.001	177.86
97			XX			0.875	22.23	72.49	107.93	6.875	174.64
98			160			0.906	23.01	74.76	111.27	6.813	173.08
99	9	9.625	STD	40	40S	0.342	8.69	33.94	50.54	8.941	227.12
100			XS	80	80S	0.500	12.70	48.77	72.60	8.625	219.10

Line Pipe Dimensions: Definition of Terms

American Petroleum Institute (API)
API is the US trade association for the oil and natural gas industry.

American Society of Mechanical Engineers (ASME)
ASME is a US professional association for mechanical engineers. It is headquartered in New York.

American National Standards Institute (ANSI)
ANSI is a non-profit organization that promotes conformity across multiple industries.

Double-extra-strong Pipe
Pipe with its wall thickness increased above that of the standard-weight pipe to provide extra strength.

Electric Resistance Welding Pipe (ERWP)
ERWP is a type of pipe made by heating and pushing solid round steel and then shaping the steel into a hollow tube.

Extra Strong Pipe
Pipe with a wall thickness greater than that of the standard-weight-pipe.

Doubled Submerged Arc Welded (DSAW)
DSAW is pipe made from a raw material steel plate and produced by extruding through a process called double-sided merged arc welding.

Size or Nominal Pipe Size
The Nominal Pipe Size (NPS) refers to the North American standard for pipes used in high or low temperatures and pressures. NPS pertains only to the outer diameter or OD. The Outer Diameter remains unchanged while the wall thickness increases with larger Schedules. When NPS increases, the OD also increases. In practice, size defines the pipe wall thickness and pipe nominal diameter.

Inner Diameter
Also called bore diameter, the inner diameter starts from the left to the right side of the pipe’s inner interior.

Outside Diameter
The outer diameter is the distance from the outer wall to the other side, from top to bottom, and from left to right.

Schedule
Schedule refers to the wall thickness of the pipe. In the past, wall thickness was classified as Standard (STD), Extra Strong (XS) and Double Extra Strong (XXS). STD is similar to schedule 40.

Standard Pipe
Standard pipe refers to the schedule based on wall thickness and nominal pipe size, which in turn is based on the diameter that is measured in inches.

Line Pipe Dimensions, Weight and Schedule Chart Abbreviations:

OD. – Outer Diameter
ID – Inner Diameter
In. – Inches
NPS – Nominal Pipe Size
SCH – Pipe Schedule
WGT – Weight
LB/FT – Pound per feet

Sourcing Quality Line Pipe for Your Oilfield Pipeline Projects

When selecting line pipe for critical oil and gas transportation infrastructure, understanding the detailed specifications in the Line Pipe Dimensions, Weight and Schedule Chart (API 5L) is essential for ensuring operational reliability, regulatory compliance, and cost-effective project execution. The comprehensive dimensional data provided in this chart allows engineers and procurement specialists to select the optimal pipe specifications based on specific flow requirements, pressure ratings, and installation conditions. At FlowTech Energy, we maintain an extensive inventory of both new and quality used line pipe that meets or exceeds API 5L standards, providing operators with reliable options across all common dimensions and schedules.

Our experienced technical team can help you navigate the complexities of line pipe selection, ensuring you choose the right combination of diameter, wall thickness, and grade for your specific pipeline application, whether for gathering systems, transmission lines, or facility piping. We understand that proper pipe specification is critical not only for immediate installation success but also for long-term operational integrity and maintenance considerations. Contact us today at 1-877-645-6693 to discuss how our inventory of API 5L compliant line pipe can provide the perfect balance of flow capacity, pressure resistance, and structural durability for your next pipeline project, helping you optimize both performance and value throughout the system’s operational lifecycle.

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