TM 9-254 5-4. Conversion Factors - Continued Table 5-5.  Conversion Factors - Continued Conversely, To convert Into Multiply by multiply by Cubic inches Cubic feet 5.787 X 10^-4 1728 Cubic inches Cubic meters 1.639 X 10^-5 6.102 X 10⁴ Cubic inches Gallons (liq. U.S.) 4.329 X 10^-3 231 Cubic meters Cubic feet 35.31 2.832 X 10^-2 Cubic meters Cubic yards 1.308 0.7646 Cycles per second Hertz 1 1 Degrees (angle) Mils 17.78 0.0562 Degrees (angle) Radians 1.745 X 10^-2 57.3 Dynes Pounds 2.248 X 10^-6 4.448 X 10⁵ Ergs Foot-pounds 7.376 x 10^-8 1.356 X 10⁷ Fahrenheit Rankine °F + 459.58 = °R °R - 459.58= °F Faradays Ampere-hours 26.8 3.731 X 10^-2 Farads Microfarads 10⁶ 10^-6 Farads Picofarads 10¹² 10^-12 Farads Millifarads 10³ 10^-3 Fathoms Feet 6 0.16667 Feet Centimeters 30.48 3.281 X 10^-2 Feet Meters 0.3048 3.281 Feet Mils 1.2 X 10⁴ 8.333 X 10^-5 Foot-pounds Gram-centimeters 1.383 X 10⁴ 1.235 X 10^-5 Foot-pounds Horsepower-hours 5.05 X 10^-7 1.98 X 10⁶ Foot-pounds Kilogram-meters 0.1383 7.233 Foot-pounds Kilowatt-hours 3.766 X 10^-7 2.655 X 10⁶ 5-6