View source for Engineering Statics/Appendices/Conversion Factors

== U.S. Customary Units to SI Units ==
{| width="500"
|-
! To convert from !! To !! Multiply by
|-
| ft/sec^2 || m/s^2 || <math>3.048 \times 10^{-1*}</math>
|-
| in/sec^2 || m/s^2 || <math>2.54 \times 10^{-2*}</math>
|-
| ft^2 || m^2 || <math>9.2903 \times 10^{-2}</math>
|-
| in^2 || m^2 || <math>6.4516 \times 10^{-4*}</math>
|-
| lbm/in^3 || kg/m^3 || <math>2.7680 \times 10^{4}</math>
|-
| lbm/ft^3 || kg/m^3 || <math>1.6018 \times 10</math>
|-
| kip (1000&nbsp;lb) || N || <math>4.4482 \times 10^{3}</math>
|-
| lb || N || <math>4.4482</math>
|-
| ft || m || <math>3.048 \times 10^{-1*}</math>
|-
| in || m || <math>2.54 \times 10^{-2*}</math>
|-
| mi (U.S. statute) || m || <math>1.6093 \times 10^{3}</math>
|-
| mi (international nautical) || m || <math>1.852 \times 10^{3*}</math>
|-
| lbm || kg || <math>4.5359 \times 10^{-1}</math>
|-
| slug (lb-sec^2/ft) || kg || <math>1.4594 \times 10</math>
|-
| ton (2000 lbm) || kg || <math>9.0718 \times 10^{2}</math>
|-
| lb-ft || N-m || <math>1.3558</math>
|-
| lb-in || N-m || <math>0.11298</math>
|-
| in^4 || m^4 || <math>41.623 \times 10^{-8}</math>
|-
| lb-ft-sec^2 || kg-m^2 || <math>1.3558</math>
|-
| lb-sec || kg-m/s || <math>4.4482</math>
|-
| lb-ft-sec || kg-m^2/s || <math>1.3558</math>
|-
| ft-lb/min || W || <math>2.2597 \times 10^{-2}</math>
|-
| hp (550&nbsp;ft-lb/sec) || W || <math>7.4570 \times 10^{2}</math>
|-
| atm (14.7&nbsp;lb/in^2) || N/m^2 or Pa || <math>1.0133 \times 10^{5}</math>
|-
| lb/ft^2 || N/m^2 or Pa || <math>4.7880 \times 10</math>
|-
| lb/in^2 or psi || N/m^2 or Pa || <math>6.8948 \times 10^{3}</math>
|-
| lb/in || N/m || <math>1.7513 \times 10^{2}</math>
|-
| ft/sec || m/s || <math>3.048 \times 10^{-1*}</math>
|-
| knot (nautical mi/hr) || m/s || <math>5.1444 \times 10^{-1}</math>
|-
| mi/hr || m/s || <math>4.4704 \times 10^{-1*}</math>
|-
| mi/hr || km/h || <math>1.6093</math>
|-
| ft^3 || m^3 || <math>2.8317 \times 10^{-2}</math>
|-
| in^3 || m^3 || <math>1.6387 \times 10^{-5}</math>
|-
| BTU || J || <math>1.0551 \times 10^{3}</math>
|-
| ft-lb || J || <math>1.3558</math>
|-
| kw-h || J || <math>3.60 \times 10^{6*}</math>
|-
| * Exact value
|}
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