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FHWA Operations Support - Port Peak Pricing Program EvaluationForewordNoticeThis document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document. This report does not constitute a standard, specification, or regulation. The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers’ names may appear in this report only because they are considered essential to the objective of the document. Quality Assurance StatementThe Federal Highway Administration (FHWA) provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement. Technical Report Documentation Page
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 |
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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 |
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