Outside diameter in inches.

Outside diameter in feet.

Thickness in inches.

Internal diameter in inches.

Internal diameter in feet.

Outside surface in square feet, per foot of length.

Outside surface in square inches, per foot of length.

Internal surface in square feet, per foot of length.

Internal surfaces in square inches, per foot of length.

1.25

0.1042

0.072

1.106

0.0922

0.3272

47.1

0.2896

41.7

1.5

0.125

0.083

1.334

0.111

0.3927

56.5

0.3492

50.3

1.75

0.1458

0.095

1.56

0.13

0.4582

66.1

0.4084

58.8

2.

0.1667

0.095

1.81

0.1508

0.5236

75.4

0.4739

68.2

2.25

0.1875

0.095

2.06

0.1717

0.5891

84.8

0.5393

77.7

2.5

0.2083

0.109

2.282

0.1902

0.6545

94.2

0.5974

86.

2.75

0.2292

0.109

2.532

0.211

0.72

103.7

0.6629

95.5

3.

0.25

0.109

2.782

0.2318

0.7854

113.1

0.7283

104.9

3.25

0.2708

0.12

3.01

0.2508

0.8509

122.5

0.788

113.5

3.5

0.2917

0.12

3.26

0.2717

0.9163

132.

0.8535

122.9

3.75

0.3125

0.12

3.51

0.2925

0.9818

141.4

0.9189

132.3

4.

0.3333

0.134

3.732

0.311

1.0472

150.8

0.977

140.7

4.5

0.375

0.134

4.232

0.3527

1.1781

169.7

1.1079

159.5

5.

0.4167

0.148

4.704

0.392

1.309

188.5

1.2315

177.3

6.

0.5

0.165

5.67

0.4725

1.5708

226.1

1.4844

213.8

7.

0.5833

0.165

6.67

0.5558

1.8326

263.9

1.7462

2515

8.

0.6667

0.165

7.67

0.6392

2.0944

301.8

2.008

289.2

9.

0.75

0.18

8.64

0.72

2.3562

339.3

2.262

325 7

10.

0.8333

0.203

9.594

0.7995

2.618

377.

2.5117

361.7