Offshore Pipelines

Length
| 1 in. | = 25.4 mm |
| 1 ft | = 0.3048 m |
| 1 mile | = 1.609 km |
| 1 nautical mile | = 1.852 km |
| 1 fathom | = 6 ft = 1.8288 m |
Area
| 1 in 2 | = 6.4516 cm 2 |
| 1 ft 2 | = 0.0929 m 2 |
Volume
| 1 in 3 | = 16.387 cm 3 |
| 1 ft 3 | = 0.028317 m 3 |
Liquid Volume
| 1 oz | = 29.574 ml |
| 1 gal (US) | = 0.134 ft 3 = 3.785 l |
| 1 gal (Imp) | = 4.546 l |
| 1 barrel | = 42 gal (US) = 158.99 l = 5.6146 ft 3 |
Mass
| 1 lbm | = 0.4536 kg |
| 1 slug | = 1 lbf*sec 2/ft |
| 1 slug | = 32.174 lbm = 14.59 kg |
Force
| 1 lbf | = 4.448 N |
| 1 lbf | = 32.174 poundals |
| 1 N | = 1 kg*m/sec 2 = 0.225 lbf |
| 1 ton (short) | = 907.2 kg |
| 1 ton (long) | = 1016.0 kg |
| 1 lbf/ft | = 14.59 N/m |
| 1 lb/ft | = 1.488 kg/m |
| 1 lb/ft 2 | = 47.880 N/m 2 |
| 1 kN | = 224.8 lbf |
Density
| 1 lbf/in 3 | = 27.68 g/cm 3 |
| 1 lbf/ft 3 (pcs) | = 16.02 kg/m 3 |
Pressure or Stress
| 1 psi |