Conversion Tables

 


Categories of Units

 

Baking
Time
length
length for kids
area
volume or capacity
mass or weight
temperature
density, volume
force
power
speed
common conversion Factors
S I prefixes
U K (Imperial) system
U S system of measures

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Baking

 

Teaspoon (t) x 3 = Tablespoon (T)
Tablespoon (T) x 16 = Cup
Fl Oz x 8 = Cup
Cup x 2 = Pint
Pint x 2 = Quart
Quart x 4 = Gallon

Cup Fl Oz Tbsp tsp
1/16 1/2 1 3
1/8 1 2 6
1/4 2 4 12
1/3 3 5 16
1/2 4 8 24
2/3 5 11 32
3/4 6 12 36
1 8 16 48

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Time

 

Jiffy x 1000 = Second
Second x 60 = Minutes
Minutes x 60 = Hours
Hours x 23.. = Day
Days x 365.. = Year
Year x 10 = Decade
Year x 100 = Century
Year x 1000 = Millennium

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Common Conversion Factors

 

acres x 0.4047 = hectares kilograms x 35.3 = ounces
acres / 247 = sq. kilometers kilograms x 2.2046 = pounds
acres x 4047 = sq. meters kilograms / 1000 = tonnes *
acres / 640  = sq. miles * kilograms / 1016 = tons (UK/long)
barrels (oil) / 6.29 = cu. meters kilograms / 907 = tons (US/short)
barrels (oil) x 34.97 = gallons (UK) kilometers x 1000 = meters *
barrels (oil) x 42  = gallons (US)* kilometers x 0.6214 = miles
barrels (oil) x 159 = liters liters x 61.02 = cu. inches
centimeters / 30.48  = feet * liters x 0.2200 = gallons (UK)
centimeters / 2.54  = inches * liters x 0.2642 = gallons (US)
centimeters / 100  = meters * liters x 1.760 = pints (UK)
centimeters x 10  = millimeters * liters x 2.113 = pints (US liquid)
cubic cm x 0.06102 = cubic inches meters / 0.9144 = yards *
cubic cm / 1000  = liters * meters x 100 = centimeters *
cubic cm x 1 # = milliliters miles x 1.609 = kilometers
cubic feet x 1728  = cubic inches * millimeters / 25.4 = inches *
cubic feet x 0.0283 = cubic meters ounces x 28.35 = grams
cubic feet / 27  = cubic yards * pints (UK) x 0.5683 = liters
cubic feet x 6.229 = gallons (UK) pints (UK) x 1.201 = pints (US liquid)
cubic feet x 7.481 = gallons (US) pints (US liquid) x 0.4732 = liters
cubic feet x 28.32 = liters pints (US liquid) x 0.8327 = pints (UK)
cubic inches x 16.39 = cubic cm pounds x 0.4536 = kilograms
cubic inches x 0.01639 = liters pounds x 16 = ounces *
cubic meters x 35.31 = cubic feet square cm x 0.1550 = sq. inches
feet x 30.48 = centimeters* square feet x 144 = sq. inches*
feet x 0.3048 = meters* square feet x 0.0929 = sq. meters
feet / 3 = yards* square inches x 6.4516 = square cm*
fl. ounces (UK) x 0.961 = fl. ounces (US) square inches / 144 = square feet*
fl. ounces (UK) x 28.41 = milliliters square km x 247 = acres
fl. ounces (US) x 1.041 = fl. ounces (UK) square km x 100 = hectares*
fl. ounces (US) x 29.57 = milliliters square km x 0.3861 = square miles
gallons x 8 = pints* square meters / 4047 = acres
gallons (UK) x 0.1605 = cubic feet square meters / 10 000 = hectares*
gallons (UK) x 1.2009 = gallons (US) square meters x 10.76 =
gallons (UK) x 4.54609 = liters* square meters x 1.196 = square yards
gallons (US) x 0.1337 = cubic feet square miles x 640 = acres*
gallons (US) x 0.8327 = gallons (UK) square miles x 259 = hectares
gallons (US) x 3.785 = liters square miles x 2.590 = square km
grams / 1000 = kilograms* square yards / 1.196 = square meters
grams / 28.35 = ounces tonnes x 1000 = kilograms*
hectares x 2.471 = acres tonnes x 0.9842 = tons (UK/long)
hectares / 100 = square km* tonnes x 1.1023 = tons (US/short)
hectares x 10000 = square meters* tons (UK/long) x 1016 = kilograms
hectares / 259 = square miles tons (UK/long) x 1.016 = tonnes
hectares x 11 960 = square yards tons (US/short) x 907.2 = kilograms
inches x 2.54 = centimeters* tons (US/short) x 0.9072 = tonnes
inches / 12 = feet* yards x 0.9144 = meters*

* are exact conversions

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Length

 

angstroms
astronomical units
barleycorns
centimeters
chains (surveyors')
cubits
ells (UK)
ems (pica)
fathoms
feet (UK and US)
feet (US survey)
furlongs
hands
inches
kilometers
leagues
light years
links (surveyors')
meters [m]
microns (= micrometers)
miles (UK and US)
miles (nautical)
parsecs
perch (=rods or poles)
picas (computer)
picas (printers')
points (computer)
points (printers')
yards
/ 10 000 000 000 *
x 149 598 550 000
x 0.008 467
x 0.01 *
x 20.1168 *
x (0.45 to 0.5)
x 0.875 (but many variations)
x 0.004 233 3
x 1.8288 *
x 0.3048 *
x 0.304 800 609 6
x 201.168 *
x 0.1016 *
x 0.0254 *
x 1000 *
x (4000 to 5000)
x 9 460 500 000 000 000
x 0.201 168 *
1
x 0.000 001 *
x 1609.344 *
x 1852 *
x 30 856 770 000 000 000
x 5.0292 *
x 0.004 233 333
x 0.004 217 518
x 0.000 352 777 8
x 0.000 351 459 8
x 0.9144 *

* are exact conversions

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Length for Kids

 

kilometer
Hectometer
decameter
meter
decimeter
centimeter
millimeter
1000 meter
100 meter
10 meter
1 meter
.1 meter
.01 meter
.001 meter

 

10 millimeters
10 centimeter
10 decimeters
100 centimeters
1000 meters
1 centimeter
1 decimeter
1 meter
1 meter
1 kilometer

 

Inch x .0254
Inch x .254
Inch x 2.54
Inch x 25.4

Feet x .3048
Feet x 3.048
Feet x 30.48
Feet x 304.8
= meter
= decimeter
= centimeter
= millimeter

= meter
= decimeter
= centimeter
= millimeter

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Area

 

acres
ares
circular inches
hectares
hides
roods
square centimeters
square feet (UK and US)
square feet (US survey)
square inches
square kilometers
square meters
square miles
square millimeters
squares (of timber)
square rods (or poles)
square yards
townships
x 4046.856 422 4 *
x 100 *
x 0.000 506 707 479
x 10 000 *
x 485 000 (with wide variations)
x 1011.714 105 6 *
x 0.000 1 *
x 0.092 903 04 *
x 0.092 903 411 613
x 0.000 645 16 *
x 1 000 000 *
1
x 2 589 988.110 336 *
x 0.000 001 *
x 9.290 304 *
x 25.292 852 64 *
x 0.836 127 36 *
x 93 239 571.972

* are exact conversions

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Volume

 

barrels (oil)
bushels (UK)
bushels (US)
centiliters
cubic centimeters
cubic decimeters
cubic decameters
cubic feet
cubic inches
cubic meters
cubic millimeters
cubic yards
deciliters
fluid ounces (UK)
fluid ounces (US)
gallons, dry (US)
gallons, liquid (US)
liters [l or L]
liters (1901 - 1964)
milliliters
pints (UK)
pints, dry (US)
pints, liquid (US)
quarts (UK)
quarts, dry (US)
quarts, liquid (US)
x 158.987 294 928 *
x 36.368 72 *
x 35.239 070 166 88 *
x 0.01 *
x 0.001 *
1
x 1 000 000 *
x 28.316 846 592 *
x 0.016 387 064 *
x 1000 *
x 0.000 001 *
x 764.554 857 984 *
x 0.1 *
x 0.028 413 062 5 *
x 0.029 573 529 562 5 *
x 4.404 883 770 86 *
x 3.785 411 784 *
1
x 1.000 028
x 0.001 *
x 0.568 261 25 *
x 0.550 610 471 357 5 *
x 0.473 176 473 *
x 1.136 522 5 *
x 1.101 220 942 715 *
x 0.946 352 946 *

* are exact conversions

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Mass (or Weight)

 

carats, metric
grains
grams
hundredweights, long
hundredweights, short
kilograms [kg]
ounces, avoirdupois
ounces, troy
pounds
slugs (or g-pounds)
stones
tons (UK or long)
tons (US or short)
tonnes
x 0.000 2 *
x 0.000 064 798 91 *
x 0.001 *
x 50.802 345 44 *
x 45.359 237 *
1
x 0.028 349 523 125 *
x 0.031 103 476 8 *
x 0.453 592 37 *
x 14.593 903
x 6.350 293 18 *
x 1016.046 908 8 *
x 907.184 74 *
x 1000 *

* are exact conversions

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Temperature

 

Fahrenheit (F) to Celsius (C)
Celsius (C) to Fahrenheit (F)
Celsius (C) to Kelvin (K)
F - (32 * (5 / 9))
C * (9 / (5 + 32))
C + 273.15

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Density

 

grains/gallon (UK)
grains/gallon (US)
grams/cubic centimeter
grams/liter
grams/milliliter
kilograms/cubic meter
mega grams/cubic meter
milligrams/milliliter
milligrams/liter
kilograms/liter
ounces/cubic inch
ounces/gallon (UK)
ounces/gallon (US)
pounds/cubic inch
pounds/cubic foot
pounds/gallon (UK)
pounds/gallon (US)
tonnes/cubic meter
tons (UK)/cubic yard
tons (US)/cubic yard
/  70 157
/  58 418
1
/ 1000 *
1
/ 1000 *
1
/ 1000 *
/ 1 000 000 *
1
x 1.729 994 044
x 0.006 236 023
x 0.007 489 152
x 27.679 905
x 0.016 018 463
x 0.099 776 373
x 0.119 826 427
1
x 1.328 939 184
x 1.186 552 843

* are exact conversions

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Force

 

dynes
kilograms force
kilonewtons [kN]
kips
meganewtons [MN]
newtons [N]
pounds force
poundals
sthenes (=kN)
tonnes force
tons (UK) force
tons (US) force
/ 100 000 *
x 9.806 65 *
x 1000 *
x 4448.222
x 1 000 000 *
1
x 4.448 222
x 0.138 255
x 1000
x 9806.65 *
x 9964.016
x 8896.443

* are exact conversions

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Power

 

Btu/hour
Btu/minute
Btu/second
calories/hour
calories/minute
calories/second
ft lb-force/minute
ft lb-force/second
gigawatts [GW]
horsepower (electric)
horsepower (metric)
watts [W]
joules/hour
joules/minute
joules/second
kilocalories/hour
kilocalories/minute
kg-force metres/hour
kg-force metres/minute
kilowatts [kW]
megawatts [MW]
x 0.293 071
x 17.584 267
x 1055.056
x 0.001 163 *
x 0.069 78 *
x 4.1868 *
x 0.022 597
x 1.355 82
x 1 000 000 000
x 746 *
x 735.499
1
/ 3600 *
/ 60 *
1
x 1.163
x 69.78
x 0.002 724
x 0.163 444
x 1000 *
x 1 000 000 *

* are exact conversions

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Speed

 

centimeters/minute
centimeters/second
feet/hour
feet/minute
feet/second
inches/minute
inches/second
kilometers/hour
kilometers/second
knots
Mach number
meters/hour
meters/minute
meters/second [m/s]
miles/hour
miles/minute
miles/second
yards/hour
yards/minute
yards/second
/ 6000 *
/ 100 *
/ 11 811
x 0.005 08 *
x 0.3048 *
/ 2362.2
x 0.0254 *
/ 3.6 *
x 1000 *
x 0.514 444
x 331.5
/ 3600 *
/ 60 *
1
x 0.447 04 *
x 26.8224 *
x 1609.344 *
/ 3937
x 0.015 24 *
x 0.9144 *

* are exact conversions

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The Prefixes of the S I Thank you Brandon

 

Metric












yotta [Y]
zetta [Z]
exa [E]
peta [P]
tera [T]
giga [G]
mega [M]
kilo [k]
hecto [h]
deca [da]

deci [d]
centi [c]
milli [m]
micro []
nano [n]
pico [p]
femto [f]
atto [a]
zepto [z]
yocto [y]
Actual












1 000 000 000 000 000 000 000 000
1 000 000 000 000 000 000 000
1 000 000 000 000 000 000
1 000 000 000 000 000
1 000 000 000 000
1 000 000 000
1 000 000
1 000
100
10
1
0.1
0.01
0.001
0.000 001
0.000 000 001
0.000 000 000 001
0.000 000 000 000 001
0.000 000 000 000 000 001
0.000 000 000 000 000 000 001
0.000 000 000 000 000 000 000 001
Scientific

= 10^342
= 10^100
= 10^88
= 10^48
= 10^45
= 10^42
= 10^39
= 10^36
= 10^33
= 10^30
= 10^27
= 10^24
= 10^21
= 10^18
= 10^15
= 10^12
= 10^9
= 10^6
= 10^3
= 10^2
= 10^1

= 10^-1
= 10^-2
= 10^-3
= 10^-6
= 10^-9
= 10^-12
= 10^-15
= 10^-18
= 10^-21
= 10^-24
Imperial

Septquinquagintillion
Google
Muryoutaisuu
Quindecillion
Quattuordecillion
Tredecillion
Duodecillion
Undecillion
Quintilliard
Noh Nillion




quadrillion's
trillion's
billion's
million's
thousand's
hundred's
ten's
one's
tenth
hundredth
thousandth
millionth
billionth





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The U K (Imperial) System of Measurements

 

Length Area
12 inches = 1 foot 144 sq. inches = 1 square foot
3 feet = 1 yard 9 sq. feet = 1 square yard
22 yards = 1 chain 4840 sq. yards = 1 acre
10 chains = 1 furlong 640 acres = 1 square mile
8 furlongs = 1 mile
5280 feet = 1 mile
1760 yards = 1 mile Capacity
20 fl ounces = 1 pint
Volume 4 gills = 1 pint
1728 cu. inches = 1 cubic foot 2 pints = 1 quart
27 cu. feet = 1 cubic yard 4 quarts = 1 gallon (8 pints)
   
Mass (Avoirdupois)
437.5 grains = 1 ounce Troy Weights
16 ounces = 1 pound (7000 grains) 24 grains = 1 pennyweight
14 pounds = 1 stone 20 pennyweights = 1 ounce (480 grains)
8 stones = 1 hundredweight [cwt] 12 ounces = 1 pound (5760 grains)
20 cwt = 1 ton (2240 pounds)
   
Apothecaries' Measures Apothecaries' Weights
20 minims = 1 fl. scruple 20 grains = 1 scruple
3 fl. scruples = 1 fl. drachm 3 scruples = 1 drachm
8 fl. drachms = 1 fl. ounce 8 drachms = 1 ounce (480 grains)
20 fl. ounces = 1 pint 12 ounces = 1 pound (5760 grains)
 
1 yard = 0.9144 meters - same in US
1 pound = 0.453 592 37 kilograms - same in US
1 gallon = 4.546 09 liters - different in US

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The U S System of Measurements

 

Length Area
12 inches = 1 foot 144 sq. inches = 1 square foot
3 feet = 1 yard 9 sq. feet = 1 square yard
220 yards = 1 furlong 4840 sq. yards = 1 acre
8 furlongs = 1 mile 640 acres = 1 square mile
5280 feet = 1 mile 1 sq. mile = 1 section
1760 yards = 1 mile 36 sections = 1 township
   
Volume
1728 cu. inches = 1 cubic foot
27 cu. feet = 1 cubic yard
Capacity (Liquid)
Capacity (Dry) 16 fl ounces = 1 pint
2 pints = 1 quart 4 gills = 1 pint
8 quarts = 1 peck 2 pints = 1 quart
4 pecks = 1 bushel 4 quarts = 1 gallon (8 pints)
   
Mass
437.5 grains = 1 ounce Troy Weights
16 ounces = 1 pound (7000 grains) 24 grains = 1 pennyweight
14 pounds = 1 stone 20 pennyweights = 1 ounce (480 grains)
100 pounds = 1 hundredweight [cwt] 12 ounces = 1 pound (5760 grains)
20 cwt = 1 ton (2000 pounds)
   
Apothecaries' Measures Apothecaries' Weights
60 minims = 1 fl. dram 20 grains = 1 scruple
8 fl. drams = 1 fl. ounce 3 scruples = 1 dram
16 fl. ounces = 1 pint 8 drams = 1 ounce (480 grains)
12 ounces = 1 pound (5760 grains)
 
1 yard = 0.9144 meters - same as UK
1 pound = 0.453 592 37 kilograms - same as UK
1 gallon (liquid) = 3.785 411 784 liters
1 bushel = 35.239 070 166 88 liters

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thanks to Frank Tapson for the use of your tables as a reference