DISTANCE

1mm = .03937 inch

1 inch = 2.54 cm

1 cm. = .3937 inch

1 yard = 3 ft

1 Fathom = 6 ft.

1 ft = 12 inches

1 ft = .3048 meters

1 meter = 3.281 feet

1 meter = 39.37 inches

1 meter = 1.094 yards

1 yard = .9144 meters

1 rod = 5.5 yards

1 kilometer = .6214 mile

1 mile = 1.609 kilometers

AREA

1 acre = 43560.0 square ft

1 acre = 4840 square yards

1 square ft = 144 square inches

1 square ft = .0929 square meters

1 square mile = 640 acres

1 square yd = .8361 square meter

1 circular mil = .7854 square mil

1 square cm = .155 square inch

VOLUME

1 cubic ft = .0283 cu meters

1 cubic ft = 7.481 gallons

1 cubic inch = .5541 ounces(liquid)

1 cubic meter = 35.31 cubic feet

1 cubic yard = 27 cubic feet

1 cubic meter =1.308 cubic yards

1 cubic yard = .7646 cubic meters

LIQUIDS

1 gallon = .1337 cubic feet

1 gallon = 3.785 liters

1 liter = .2642 gallon

1 liter = 1.057 quarts

1 quart= .9463 liter

1 ounce = 1.805 cubic inches

32 ounces = 1 quart

16 ounces = 1 pint

8 ounces = 1 cup

1 liter = 33.8 ounces

WEIGHTS

1 kilogram = 2.2046 lbs.

1 gram = .0353 ounce

1 newton = .2248 lbs(force)

1 pound= 4.448 newtons(force)

1 ounce = 28.35 grams

1 pound = 453.6 grams

4.448 lbs. (force) = 1 newton

1 ton = 2000 lbs.

1 ton = 907.2 kilograms

TORQUE

1 gram cm = .0139 ounce inches

1 ounce inch =72.0 gram cm

1 newton meter =.7376 lb foot

1 lb ft = 1.3558 newton meters

1 newton meter =8.851 lb inches

1 lb inches = .113 newton meters

ENERGY

1 BTU =778.2 foot lbs.

1 BTU = 252 gram calories

1 BTU per hour = .293 watt

1 HP = 33000 foot lbs. per minute

1 HP = 550.0 foot lbs. per second

1 HP = 746.0 watts

1 kilowatt = 1.341 HP

ANGLES

1 degree = .0175 radians

1 radian = 57.3 degrees

1 minute = .01667 degree

1 minute = 2.9*10(-4) radians

1 quadrant = 90 degrees

one quadrant = 1.5708 radians

ELECTRICAL ENGINEERING

3 phase AMPs = KVA * 1000/Volts*1.732

Single phase AMPS = kva*1000/volts

TEMPERATURE

degrees celsius *1.8+32 = fahrenheit

degrees fahrenheit -32 / 1.8 = celsius

This is only a preliminary list. It will be improved to include much more and should come in handy for techies, engineers, students, and anyone looking for that elusive formula. (I used to HATE this stuff in HS but now I have to work with it daily!) If there is a formula that you need that is missing E-mail me and I will add it or get back to you. And if anything here is wrong (typos, etc) I apologize in advance but I cannot be held responsible for failed Mars missions and the like. If you have any doubts cross check the formula before launching that satellite and by all means let me know about the error!!!