| APPROXIMATE CONVERSIONS TO SI UNITS | ||||
|---|---|---|---|---|
| SYMBOL | WHEN YOU KNOW | MULTIPLY BY | TO FIND | SYMBOL |
| LENGTH |
||||
| in
|
inches | 25.4 | millimeters | mm |
| ft
|
feet | 0.305 | meters | m |
| yd
|
yards | 0.914 | meters | m |
| mi
|
miles | 1.61 | kilometers | km |
| AREA |
||||
| in2
|
square inches | 645.2 | square millimeters | mm2 |
| ft2
|
square feet | 0.093 | square meters | m2 |
| yd2
|
square yard | 0.836 | square meters | m2 |
| ac
|
acres | 0.405 | hectares | ha |
| mi2
|
square miles | 2.59 | square kilometers | km2 |
| VOLUME |
||||
| fl oz
|
fluid ounces | 29.57 | milliliters | mL |
| gal
|
gallons | 3.785 | liters | L |
| ft3
|
cubic feet | 0.028 | cubic meters | m3 |
| yd3
|
cubic yards | 0.765 | cubic meters | m3 |
NOTE: volumes greater than 1000 L shall be shown in m3 |
||||
| MASS |
||||
| oz
|
ounces | 28.35 | grams | g |
| lb
|
pounds | 0.454 | kilograms | kg |
| T
|
short tons (2000 lb) | 0.907 | megagrams (or "metric ton") | Mg (or "t") |
| TEMPERATURE (exact degrees) | ||||
| oF
|
Fahrenheit | 5 (F-32)/9 |
Celsius | oC |
| ILLUMINATION |
||||
| fc
|
foot-candles | 10.76 | lux | lx |
| fl
|
foot-Lamberts | 3.426 | candela/m2 | cd/m2 |
| FORCE and PRESSURE or STRESS |
||||
| lbf
|
poundforce | 4.45 | newtons | N |
| lbf/in2
|
poundforce per square inch | 6.89 | kilopascals | kPa |
