Here is a chart of handy conversion factors. The FAQ team are currently working on a JavaScript version of this chart
and it will be made available at the earliest possible convenience.

Conversion Factors

		units		conversion factor		metric units

 Length:		inches		2.54			centimeters 

		feet		0.305			meters	

		yard		.915			meters

		centimeters	0.394			inches

		meters		3.28			feet

		meters		1.094			yards



   Area:		square inches	6.5			sq. centimeters

		square feet	0.093			sq. meters

		acres		0.405			hectares

		sq. centimeters	0.155			sq. inches

		sq. meters	10.76			sq. feet

		

   Volume:      	cubic inches	16.4			cubic centimeters

		cubic feet	0.03			cubic meters

                	cubic yards	0.765			cubic meters

		cubic cm		0.061			cubic inches

		cubic meters	35.31			cubic feet

		cubic meters	1.31			cubic yards

		u.s. gallons	3.785			liters

		Imp. gallons	4.545			liters

		liters		0.2642			U.S. gallons

		liters		0.220			Imp. gallons

		

    Weight:	ounces (Av)	28.35			grams

		pounds (Av)	0.4536			Kilograms

		grams		0.0353			ounces (Av)

                  Kilograms 	0.205	 		pounds (Av)



		

    Temp:		Fahrenheit	0.56			deg. Celcius (F-32)								

		Celcius		1.8	      		Fahrenheit (F+32)



    Examples:

		Convert: 8" to centimeters (cm): 8" x 2.54 = 20.32cm

		Convert: 40 F to Celcius: (40-32) x 0.56 = 8 x 0.56 = 4.48 C

		Convert: 10 C to Fahrenheit: (10 x 1.8) + 32 = 50 F