B

B. Tables of Units and Constants

 

Units

Unit (Full Name)

 

Value in SI Units

 

 

 

a (are)

 

100 m2

A (ampere)

 

1 A

acre (acre)

 

4046.87260987 m2

arcmin (minute of arc)

 

2.90888208666 x 10-4r

arcs (second of arc)

 

4.8481368111 x 10-6r

atm (atmosphere)

 

101325 kg / m•s2

au (astronomical unit)

 

1.495979 x 1011 m

Å (Angstrom)

 

1 x 10-10m

b (barn)

 

1 x 10-28m2

bar (bar)

 

100000 kg / m•s2

bbl (barrel)

 

.158987294928 m3

Bq (becquerel)

 

1 1 / s

Btu (international table Btu)

 

1055.05585262 kg•m2 / s2

bu (bushel)

 

.03523907 m3

oC (degree Celsius)

 

1K or 274.15 K

c (speed of light)

 

299792458 m / s

C (coulomb)

 

1 A•s

cal (calorie)

 

4.1868 kg•m2 / s2

cd (candela)

 

1 cd

chain (chain)

 

20.1168402337 m

Ci (curie)

 

3.7 x 1010 1 / s

ct (carat)

 

.0002 kg

cu (US cup)

 

2.365882365 x 10-4m3

o (degree)

 

1.74532925199 x 10-2r

d (day)

 

86400 s

dB (decibel)

 

1 (dimensionless value)

dyn (dyne)

 

.00001 kg / m•s2

erg (erg)

 

.0000001 kg•m2 / s2

eV (electron volt)

 

1.60217733 x 10-19kg•m2/s2

F (farad)

 

1 A2•s4 / kg•m2

 

 

 

Tables of Units and Constants B-1