Factores de Conversión. Sistemas Metricos

En un futuro próximo me van a hacer falta las unidades y factores de conversión del sistema métrico americano.
Así que, cogido directamente de
http://www.dripirrigation.com/drip_irrigation_help.php?pgv=Conversion_Chart

dejo aquí el rollazo siguiente (podeís hacer una visita a la web anterior si quereis ver la tabla en condiciones...)

Conversion Charts
This page contains Conversion Tables, Conversion Factors, Equivalents and Formulas. We thought these might be helpful and have included many that have nothing to do with irrigation. Use the links below to jump to the table or information you need without scrolling through the complete page. Have fun and enjoy!

AREA

This	Equals	This	.	To Convert	Into	Multiply By
6.452 Sq. Centimeters	=	1 Sq. Inch		Sq. Inch	Sq. Feet	0.00694
144 Sq. Inch	=	1 Square Foot		Sq. Inch	Sq. cm	6.4516
9 Sq. Feet	=	1 Sq. Yards		Sq. Feet	Sq. cm	929.03
43,560 Sq. Feet	=	1 Acre		Sq. Feet	Sq. Meter	0.0929
1 Acre	=	208.7' Square		Sq. Feet	Sq. Inch	144
1 Acre	=	4,840 Sq. Yards		Sq. Yard	Sq. Meter	0.836
1 Acre	=	160 Sq. Rods		Sq. Yard	Sq. Inch	1296
1 Sq. Rod	=	272.25 Sq. Feet		Sq. Yard	Sq. Feet	9
1 Sq. Rod	=	30.25 Sq. Yards		Sq. Mile	Sq. Km	2.59
640 Acres	=	1 Sq. Mile		Sq. Mile	Acre	640
640 Acres	=	1 Section		Acre	Sq. Feet	43560
Area of a Circle	=	Radius Squared x 3.1416		Acre	Sq. Yard	4840
Area of a Square	=	One Side Squared		Sq. cm	Sq. Inch	0.155
Area of a Triangle	=	1/2 Base x Altitude		Sq. Meter	Sq. Feet	10.7639
Area of a Rectangle	=	Length x Width		Sq. Meter	Sq. Yard	1.196
Area of a Parallelogram	=	Base x Altitude		Sq. Km	Sq. Mile	0.3861
.				Acre	Hectare	0.404686

Length / Lineal Measurements

This	Equals	This	.	To Convert	Into	Multiply By
1 Centimeter	=	.3937 Inches		Inch	Feet	0.08333
1 Cubit	=	18 Inches		Feet	cm	30.48
1 Meter	=	39.37 Inches		Feet	Yard	0.3333
1 Rod	=	16.5 Feet		Yard	Meter	0.9144
1 Rod	=	5.5 Yards		Mile	Meter	1,609.344
1 Chain	=	4 Rods		Mile	Yard	1,760
1 Chain	=	66 Feet		Inch	cm	2.54
320 Rods	=	1 Mile		mm	Inch	0.03937
5,280 Feet	=	1 Mile		Meter	Inch	39.3701
Circumference of a Circle	=	Diameter X 3.1416		.

Volume

This	Equals	This	.	To Convert	Into	Multiply By
1728 Cubic Inches	=	1 Cubic Foot		US Gallon	Cubic Inch	231
231 Cubic Inches	=	1 Gallon		US Gallon	Cubic Feet	0.13368
27 Cubic Feet	=	1 Cubic Yard		US Gallon	Liter	3.7854
1 Cubic Foot	=	7.48052 US Gal.		US Gallon	Cubic Meter	0.0037854
1 Cubic Yard	=	202 US Gals.		US GPM	M 3/h	0.22715
16 Drams	=	1 Ounce		Cubic Inch	Cubic cm	16.3871
32 Ounces	=	1 Quart		Cubic Inch	US Gallon	0.004329
4 Quarts	=	1 Gallon		Cubic Feet	Cubic Inch	1728
1 Gallon	=	3.785 Liters		Cubic Feet	Liter	28.32
1 Gallon	=	.00379 Cubic Meters		Cubic Meter	US Gallon	264.172
1 Gallon	=	.833 Imperial Gal.		.
27.154 Gallons	=	1 Acre Inch
325,851 Gallons	=	1 Acre Foot
1,000,000 Gals.	=	3.0689 Acre Feet
1 Acre Foot	=	43,560 Cubic Feet
Volume of a Cube	=	Area of Base x Height
Volume of a Pyramid	=	1/3 Area of Base x Height
Volume of a Sphere	=	Diameter Cubed x .5236

Weights & Temperature

This	Equals	This	.	To Convert	Into	Multiply By
1 US Gal. (Water)	=	8.3357 Lbs.		Ounce	Gram	28.36
1 Cu. Ft. (Water)	=	62.3554 Lbs.		Pounds	Ounces	16
1 Imperial Gal.	=	10.0 Lbs.		Kg	Lbs.	2.20464
1 Liter	=	2.2 Lbs.		Temperature
Earth, in Place Undisturbed	=	100 Lbs. / Cu. Ft.		Celsius	Fahrenheit	(1.8)+32
Earth, Dry and Loose	=	82-90 Lbs. / Cu. Ft.		Fahrenheit	Celsius	(F-32):1.8
Earth, Moist	=	75-100 Lbs. / Cu. Ft.		.
Sand, Dry	=	90-106 Lbs. / Cu. Ft.
Shale or Red Rock	=	162 Lbs. / Cu. Ft.
Limestone	=	160-163 Lbs. / Cu. Ft.
Base Gravel	=	12.0 Lbs. / Sq. Ft. Per Inch thick in Place
Asphalt	=	12.5 Lbs. / Sq. Ft. Per Inch Thick in Place
Sack Cement	=	94 Lbs.
Concrete (Plain)	=	140 Lbs. / Cu. Ft.
Concrete (Reinforced)	=	150 Lbs. / Cu. Ft.

Pressures / Head

This	Equals	This	.	To Convert	Into	Multiply By
1 Atmosphere	=	29.921 Inches of Hg@32°F		PSI	kg/cm²	0.07031
1 Atmosphere	=	33.94 Ft. of Water @ 62°F		PSI	Meter	0.7031
1 Atmosphere	=	14.6963 Lbs. / Sq. Inch		PSI	Feet	2.307
1 Pound per Square Inch	=	2.31 Feet of Head		Feet	atm	0.02919
1 Foot of Head	=	.433 Pounds / Sq. Inch		Feet	PSI	0.4335
1 kg / Sq. Centimeter	=	14.22 Lbs. / Sq. Inch		Feet	kg/cm²	0.03048
1 Foot of Water	=	62.3554 Lbs. / Sq. Foot		Meter	PSI	1.422
Abbreviations kg/cm² = Kilogram Per Sq. Centimeter PSI = Pounds Per Sq. Inch M³/h = Cubic Meter Per Hour GPM = Gallons Per Minute				Meter	atm	0.0967
				atm	kg/cm²	1.0336
				atm	Meter	10.336
				atm	Bar	1.01365
				atm	PSI	14.7
				Bar	PSI	14.504
				Bar	atm	0.9865
				Bar	kg/cm²	1.0197
				kg/cm²	PSI	14.223
				kg/cm²	Feet	32.81

Flows

This	Equals	This	.	To Convert	Into	Multiply By
1 GPM (US)	=	.002228 Cu. Ft. / Second		US GPH	Liter / Hour	3.785
1 GPM (US)	=	.13368 Cu. Ft. / Minute		US GPM	Liter / Hour	227.1
1 GPM (US)	=	8.0208 Cu. Ft. / Hour		US GPM	Cubic Ft. / Second	0.002228
1 GPM (US)	=	.06309 Liters / Second		US GPM	M³/h	.2273
1 GPM (US)	=	3.78533 Liters / Minute		Liter / Second	US GPM	15.85
1 GPM (US)	=	.0044192 Acre Ft. / 24 Hrs.		Liter / Second	US GPH	951.002
1 Cu. Ft. Per Second	=	448.83 GPM		Liter / Second	M³ / Hour	3.6
1 Liter per Second	=	15.85		Liter / Hour	US GPH	0.26417
1 Cu. Meter per Minute	=	664.2 GPM		Liter / Hour	US GPM	0.004403
1 Acre Inch per Hour	=	452.57 GPM		M³ / Hour	US GPM	4.40288
1 Acre Ft. per Day	=	226.3 GPM		Cu. Ft. / Second	M³ / Hour	101.9
1 Mil. Gal. per Day	=	694.4 GPM		M³ / Hour	Cubic Feet / Second	0.00981
1 Cu. Ft. per Second	=	.992 Acre Inches / Hour		.

Power

This	Equals	This	.	To Convert	Into	Multiply By
1 Horse Power	=	33,000 Ft. Pounds / Minute		HP / US	HP / Metric	1.014
1 Horse Power	=	746 Watts		HP / Metric	HP / US	0.986
1 Horse Power	=	.746 Kilowatts		HP / US	Kilowatt	0.7457
Horse Power	=	GPM x Total Head (ft.) ------------------------------ 3960 x Pump Efficiency		.
Pump Efficiency	=	GPM x Total Head (ft.) ------------------------------ 3960 x BHP to Pump