Dimensions of Copper Water Tubing: Type K
Nominal Size
- Inches
Outside Diameter
- Inches
Feet Length
per Sq. Ft
of Outer Area
Nominal Wall
Thickness
- Inches
Theoretical
Weight
per Linear Ft.-lb.
Inside
Cross-Sectional
Area - Sq In.
1/8 .250 15.3 .032 .085 .027
1/4 .375 10.2 .035 .145 .073
3/8 .500 7.64 .049 .269 .127
1/2 .625 6.11 .049 .344 .218
5/8 .750 5.09 .049 .418 .344
3/4 .875 4.36 .065 .641 .436
1 1.125 3.40 .065 .839 .778
1 1/4 1.375 2.78 .065 1.04 1.22
1 1/2 1.625 2.35 .072 1.36 1.72
2 2.125 1.80 .083 2.06 3.01
2 1/2 2.625 1.455 .095 2.93 4.66
3 3.125 1.222 .109 4.00 6.64
3 1/2 3.625 1.054 .120 5.12 9.00
4 4.125 .926 .134 6.51 11.7
5 5.125 .745 .160 9.67 18.1
6 6.125 .624 .192 13.9 25.9
8 8.125 .470 .271 25.9 45.2
10 10.125 .377 .338 40.3 70.1
12 12.125 .315 .405 57.8 100.5

Dimensions of Copper Water Tubing: Type L
Nominal Size
- Inches
Outside Diameter
- Inches
Feet Length
per Sq. Ft
of Outer Area
Nominal Wall
Thickness
- Inches
Theoretical
Weight
per Linear Ft.-lb.
Inside
Cross-Sectional
Area - Sq In.
1/8 .250 15.3 .025 .068 .031
1/4 .375 10.2 .030 .126 .078
3/8 .500 7.64 .035 .198 .145
1/2 .625 6.11 .040 .285 .233
5/8 .750 5.09 .042 .362 .348
3/4 .875 4.36 .045 .455 .484
1 1.125 3.40 .050 .655 .825
1 1/4 1.375 2.78 .055 .884 1.26
1 1/2 1.625 2.35 .060 1.14 1.78
2 2.125 1.80 .070 1.75 3.09
2 1/2 2.625 1.455 .080 2.48 4.77
3 3.125 1.222 .090 3.33 6.81
3 1/2 3.625 1.054 .100 4.29 9.21
4 4.125 .926 .110 5.38 12.0
5 5.125 .745 .125 7.61 18.7
6 6.125 .624 .140 10.2 26.8
8 8.125 .470 .200 19.3 46.9
10 10.125 .377 .250 30.1 72.8
12 12.125 .315 .280 40.4 105.0

Dimensions of Copper Water Tubing: Type M
Nominal Size
- Inches
Outside Diameter
- Inches
Feet Length
per Sq. Ft
of Outer Area
Nominal Wall
Thickness
- Inches
Theoretical
Weight
per Linear Ft.-lb.
Inside
Cross-Sectional
Area - Sq In.
1/8 .250 15.3 .025 .068 .031
1/4 .375 10.2 .025 .107 .083
3/8 .500 7.64 .025 .145 .159
1/2 .625 6.11 .028 .2044 .254
5/8 .750 5.09 .030 .263 .374
3/4 .875 4.36 .032 .328 .517
1 1.125 3.40 .035 .465 .875
1 1/4 1.375 2.78 .042 .682 1.31
1 1/2 1.625 2.35 .049 .940 1.83
2 2.125 1.80 .058 1.46 3.17
2 1/2 2.625 1.455 .065 2.03 4.89
3 3.125 1.222 .072 2.68 6.98
3 1/2 3.625 1.054 .083 3.58 9.40
4 4.125 .926 .095 4.66 12.2
5 5.125 .745 .109 6.66 18.9
6 6.125 .624 .122 8.92 27.2
8 8.125 .470 .170 16.5 47.6
10 10.125 .377 .212 25.6 74.0
12 12.125 .315 .254 36.7 106.0