submultiples prefixes Multip Prefixes Sy femto deca 10-18 Conversion Factors -Metric to english Inches Meters Meters Miles 133 Ounces rams 3.527396195×10-2 Pounds Kilogram 2.204622622 Gallons(U.S. Liquid) Liters 0.2641720524 Fluid ounces Milliliters(cc) 3.381402270×10-2 Square inches Square centimeters Square meters Square meters Cubic c Milliliters(cc) 6.102374409×10-2 bic meters Cubic yards Cubic meters Conversion Factors-English to Metric Multiply By 254 Centimeters 2.54 1.609344 Grams 28.34952313 Liters allons (U.S. Liquid) 3.785411784 Millimeters(cc) 29.57352956 Square centimeters Square ine Cubic fee Cubic yards 0.764554858 Conversion Factors--General By Feet of water@4°C 950×10-2 Atmospheres Inches of mercury @ 0C 10-2 Atmospheres Pounds per square inc 6.804X10-2 BT Foot-pounds 285×10 9.480×104 Cubic feet Cords 128 57.2958 Ergs Boldface numbers are exact; others are given to ten significant figures where so indicated by the multiplier factor e 2000 by CRC Press LLC© 2000 by CRC Press LLC Conversion Factors—Metric to English Conversion Factors—English to Metric* Conversion Factors—General* 106 mega M 10–9 nano n 103 kilo k 10–12 pico p 102 hecto h 10–15 femto f 10 deca da 10–18 atto a To obtain Multiply By Inches Centimeters 0.3937007874 Feet Meters 3.280839895 Yards Meters 1.093613298 Miles Kilometers 0.6213711922 Ounces Grams 3.527396195 ¥ 10–2 Pounds Kilogram 2.204622622 Gallons (U.S. Liquid) Liters 0.2641720524 Fluid ounces Milliliters (cc) 3.381402270 ¥ 10–2 Square inches Square centimeters 0.155003100 Square feet Square meters 10.76391042 Square yards Square meters 1.195990046 Cubic inches Milliliters (cc) 6.102374409 ¥ 10–2 Cubic feet Cubic meters 35.31466672 Cubic yards Cubic meters 1.307950619 To obtain Multiply By Microns Mils 25.4 Centimeters Inches 2.54 Meters Feet 0.3048 Meters Yards 0.9144 Kilometers Miles 1.609344 Grams Ounces 28.34952313 Kilograms Pounds 0.45359237 Liters Gallons (U.S. Liquid) 3.785411784 Millimeters (cc) Fluid ounces 29.57352956 Square centimeters Square inches 6.4516 Square meters Square feet 0.09290304 Square meters Square yards 0.83612736 Milliliters (cc) Cubic inches 16.387064 Cubic meters Cubic feet 2.831684659 ¥ 10–2 Cubic meters Cubic yards 0.764554858 To obtain Multiply By Atmospheres Feet of water @ 4°C 2.950 ¥ 10–2 Atmospheres Inches of mercury @ 0°C 3.342 ¥ 10–2 Atmospheres Pounds per square inch 6.804 ¥ 10–2 BTU Foot-pounds 1.285 ¥ 10–3 BTU Joules 9.480 ¥ 10–4 Cubic feet Cords 128 Degree (angle) Radians 57.2958 Ergs Foot-pounds 1.356 ¥ 107 Multiples and Multiples and submultiples Prefixes Symbols submultiples Prefixes Symbols *Boldface numbers are exact; others are given to ten significant figures where so indicated by the multiplier factor