Traffic Analysis Toolbox Volume VIII:
Work Zone Modeling and Simulation - A Guide for Decision-Makers
SI* (MODERN METRIC) CONVERSION FACTORS
| 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 |
| APPROXIMATE CONVERSIONS FROM SI UNITS | ||||
|---|---|---|---|---|
| SYMBOL | WHEN YOU KNOW | MULTIPLY BY | TO FIND | SYMBOL |
|
LENGTH |
||||
|
mm
|
millimeters |
0.039 |
inches | in |
|
m
|
meters |
3.28 |
feet | ft |
|
m
|
meters |
1.09 |
yards | yd |
|
km
|
kilometers |
0.621 |
miles | mi |
|
AREA |
||||
|
mm2
|
square millimeters |
0.0016 |
square inches | in2 |
|
m2
|
square meters |
10.764 |
square feet | ft2 |
|
m2
|
square meters |
1.195 |
square yards | yd2 |
|
ha
|
hectares |
2.47 |
acres | ac |
|
km2
|
square kilometers |
0.386 |
square miles | mi2 |
|
VOLUME |
||||
|
mL
|
milliliters |
0.034 |
fluid ounces | fl oz |
|
L
|
liters |
0.264 |
gallons | gal |
|
m3
|
cubic meters |
35.314 |
cubic feet | ft3 |
|
m3
|
cubic meters |
1.307 |
cubic yards | yd3 |
|
MASS |
||||
|
g
|
grams |
0.035 |
ounces | oz |
|
kg
|
kilograms |
2.202 |
pounds | lb |
|
Mg (or "t")
|
megagrams (or "metric ton") |
1.103 |
short tons (2000 lb) | T |
|
TEMPERATURE (exact degrees) |
||||
|
oC
|
Celsius | 1.8C+32 | Fahrenheit | oF |
|
ILLUMINATION |
||||
|
lx
|
lux |
0.0929 |
foot-candles | fc |
|
cd/m2
|
candela/m2 |
0.2919 |
foot-Lamberts | fl |
|
FORCE and PRESSURE or STRESS |
||||
|
N
|
newtons | 0.225 | poundforce | lbf |
|
kPa
|
kilopascals |
0.145 |
poundforce per square inch | lbf/in2 |
