The table below contains some of the most commonly used conversion factors in structural engineering:
| Length | Mile (mi) | 1.609 kilometer (km) |
| Yard (yd) | 0.914 meter (m) | |
| Foot (ft) | 0.304 meter (m) | |
| 304.8 millimeter (mm) | ||
| Inch (in) | 25.4 millimeter (mm) | |
| Mil (mil) | 25.4 microns (μm) | |
| Area | Square mile (mi2) | 2.590 square kilometer (km^2) |
| Acre (ar) | 4047 square meter (m^2) | |
| Square yard (yd^2) | 0.836 square meter (m^2) | |
| Square foot (ft^2) | 0.093 square meter (m^2) | |
| Square inch (in^2) | 645.2 square millimeter (mm^2) | |
| Volume | Cubic yard (yd^3) | 0.765 cubic meter (m^3) |
| Cubic foot (ft^3) | 0.028 cubic meter (m^3) | |
| Cubic inch (in^3) | 16390 cubic millimeter (mm^3) | |
| 16.39 milliliter (ml) | ||
| U.S. gallon (gal) | 3.785 liters (l) | |
| Velocity, Speed | Foot per second (ft/s) | 0.305 meter per second (m/s) |
| Mile per hour (mi/h) | 1.609 kilometer per hour (km/h) | |
| 0.447 meter per second (m/s) | ||
| Mass | Short ton (2000 lb) | 0.907 metric ton (M.T.) |
| 907.2 kilogram (kg) | ||
| Pound (lb) | 0.454 kilogram (kg) | |
| Ounce (oz) | 28.35 gram (g) | |
| Pressure | Pound per square foot (lb/ft^2) | 4.883 kilogram per square meter (kg/m^2) |
| 47.88 newton per square meter (N/m^2) | ||
| Density | Pound per cubic foot (lb/ft^3) | 16.02 kilogram per cubic meter (kg/m^3) |
| Ton per cubic yard (ton/yd^3) | 1.187 metric ton per cubic meter (M.T./m^3) | |
| Force | Ton-force (tonf) | 8.896 kilonewton (kN) |
| KIPS (KIP) | 4.448 kilonewton (kN) | |
| Pound-force (lbf) | 4.448 newton (N) | |
| Moment or Torque | Pound-force-foot (lbf.ft) | 1.356 newton-meter (N.m) |
| Pound-force-inch (lbf.in) | 0.113 newton-meter (N.m) | |
| KIPS-foot (KIP.ft) | 1.356 kilonewton-meter (kN.m) | |
| Force per Unit Length | Pound per foot (lb/ft) | 14.59 newton per meter (N/m) |
| Stress | KIPS per square inch (ksi) | 0.690 kilonewton per square centimeter (kN/cm^2) |
| Work, Energy & Heat | British thermal unit (Btu) | 1055 joules (J) |
| Pound-foot (lbf.ft) | 1.356 joules (J) | |
| Heat Transfer | British thermal unit per square foot hour degree fahrenheit (Btu/ft2 hr.°F) | 5.678 watt per square meter kelvin (W/m^2.K) |
| Thermal Conductivity | British thermal unit per foot hour degree fahrenheit (Btu/ft. hr.°F) | 1.731 watt per meter kelvin (W/m.K) |
