Chemistry Conversion Factors and Constants
A comprehensive reference sheet of chemistry conversion factors, metric prefixes, constants, and unit conversions for mass, volume, length, temperature, pressure, time, and energy—ideal for quick access during calculations and lab work.
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Chemistry Conversion Factors and Constants
METRIC CONVERSION FACTORS
Prefix Abbreviation Conversion Factor For Example... For Example...
Filega- M 1000000 10“ 1 Megabyte = 1 x 1 0 = bytes 1 byte = 10"= Megabytes
kilo- k 1DOO 101 1 kilometer = 1DCO meters 1 meter = D.C01 kilometers
deci- d 0.1 1D-' 1 deciliter = 0.1 liters 1 liter = 1 0 deciliters
centi- c o.di 10-1 1 centimeter = 0.01 meters 1 meter =100' centimeters
irdli- m 0.001 1DJ 1 milliliter = 0.001 liters 1 liter = IDO'S milliliters
micro- u 0.000001 10-= 1 microgram = 10"= grams 1 gram = 10F micrograms
nano n 0.000000001 IO-3 1 nanometer = 1 0s meters 1 meter = 1 0 ’ nanometers
pics P 0.000000030001 I D ’13 1 picomeler = 10"3 meters 1 meter = 101 3 picometers
OTHER CONVERSION FACTORS AND CONSTANTS
cB
? n tMsa- 1 round 1. 0567 quartsTo ounces - T pound _ =
1 kilogram = 2.2 pounds m l r “ ™
454 grams = 1 pound 0 = o n - p i l M
1 ton = 2000 pounds ’ Sa l l ° " = 4 quarts = 12B fluid ounces
1 quart = 2 pints = 3 2 fluid ounces
1 pint = 2 cups = 1fl- fluid ounces
L e ngthi'Distance
1 inch = 2.54 centi meters
1 mile = 5280 feet = 1.605 kilometers
1 yard = 3 feel = 3 6 inches = 0.9144 meters
1 meter = 39.37 inches =3.281 feel = 1.094 yards
1 kilometer = 1094 yards = D.6215 miles
Density o f Water: 1.00 gfrnL Energy : 1 cal = 4.18 4 J
Time
1 year = 365 days = 12 months = 52 weeks
1 day = 2 4 hours
1 hour = 6 0 minutes
1 minute = 6 0 seconds
Temperature
n C = | p F - 3 2 ) and DF = | " C j + 3 2
Kelvins = ° C + 2 7 3 . 1 5
Pressure Units: 1 alm = 760 mmHg = 101.325 kPa = 101325 Pa = 1.01325 bar = 14.7 psi = 29.92 inches Hg
Useful Constants:
Avogadro's Number ( N*) = 6.02 x 1D32 items >' mole Speed of Light (c) = 3.00 x 1D5 nVs
I . T r r Planck's Constant (hi = 6.63 x I O- 3* J » s
Ideal Gas Constant (R) = 0.0821 ™
METRIC CONVERSION FACTORS
Prefix Abbreviation Conversion Factor For Example... For Example...
Filega- M 1000000 10“ 1 Megabyte = 1 x 1 0 = bytes 1 byte = 10"= Megabytes
kilo- k 1DOO 101 1 kilometer = 1DCO meters 1 meter = D.C01 kilometers
deci- d 0.1 1D-' 1 deciliter = 0.1 liters 1 liter = 1 0 deciliters
centi- c o.di 10-1 1 centimeter = 0.01 meters 1 meter =100' centimeters
irdli- m 0.001 1DJ 1 milliliter = 0.001 liters 1 liter = IDO'S milliliters
micro- u 0.000001 10-= 1 microgram = 10"= grams 1 gram = 10F micrograms
nano n 0.000000001 IO-3 1 nanometer = 1 0s meters 1 meter = 1 0 ’ nanometers
pics P 0.000000030001 I D ’13 1 picomeler = 10"3 meters 1 meter = 101 3 picometers
OTHER CONVERSION FACTORS AND CONSTANTS
cB
? n tMsa- 1 round 1. 0567 quartsTo ounces - T pound _ =
1 kilogram = 2.2 pounds m l r “ ™
454 grams = 1 pound 0 = o n - p i l M
1 ton = 2000 pounds ’ Sa l l ° " = 4 quarts = 12B fluid ounces
1 quart = 2 pints = 3 2 fluid ounces
1 pint = 2 cups = 1fl- fluid ounces
L e ngthi'Distance
1 inch = 2.54 centi meters
1 mile = 5280 feet = 1.605 kilometers
1 yard = 3 feel = 3 6 inches = 0.9144 meters
1 meter = 39.37 inches =3.281 feel = 1.094 yards
1 kilometer = 1094 yards = D.6215 miles
Density o f Water: 1.00 gfrnL Energy : 1 cal = 4.18 4 J
Time
1 year = 365 days = 12 months = 52 weeks
1 day = 2 4 hours
1 hour = 6 0 minutes
1 minute = 6 0 seconds
Temperature
n C = | p F - 3 2 ) and DF = | " C j + 3 2
Kelvins = ° C + 2 7 3 . 1 5
Pressure Units: 1 alm = 760 mmHg = 101.325 kPa = 101325 Pa = 1.01325 bar = 14.7 psi = 29.92 inches Hg
Useful Constants:
Avogadro's Number ( N*) = 6.02 x 1D32 items >' mole Speed of Light (c) = 3.00 x 1D5 nVs
I . T r r Planck's Constant (hi = 6.63 x I O- 3* J » s
Ideal Gas Constant (R) = 0.0821 ™
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