News:
2008.07.15
Very small thing: the multiplication table added to site.

2008.07.10
The units of temperature converter is online now. Converts easily Kelvin, Celsius, Fahrenheit and some more.

2008.07.07

2008.06.09
We got GCD, so the twin time: Least Common Multiple - solve it, divide it, factorize it !
Energy
Energy units converter. Converts joules, calories, many physical, british, american and time related units.

How to convert? (fast intro)
  • Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
    Examples:
    • 1000000
    • 123,23
    • 999.99999
  • Find and select your starting unit in field "unit".
  • And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you need.
value: unit: decimals:



common use

joule [J]
calorie [cal]
kilo-calorie [kcal]
kilowatt-hour [kW·h]

metric (SI)

yottajoule [YJ]
zettajoule [ZJ]
exajoule [EJ]
petajoule [PJ]
terajoule [TJ]
gigajoule [GJ]
megajoule [MJ]
kilojoule [kJ]
hectojoule [hJ]
decajoule [daJ]
joule [J]
decijoule [dJ]
centijoule [cJ]
millijoule [mJ]
microjoule [µJ]
nanojoule [nJ]
picojoule [pJ]
femtojoule [fJ]
attojoule [aJ]
zeptojoule [zJ]
yoctojoule [yJ]

british-american

British thermal unit (thermochemical) [BTUth]
British thermal unit (ISO) [BTUISO]
British thermal unit (63 °F) [BTU63 °F]
British thermal unit (60 °F) [BTU60 °F]
British thermal unit (59 °F) [BTU59 °F]
British thermal unit (International Table) [BTUIT]
British thermal unit (mean) [BTUmean]
British thermal unit (39 °F) [BTU39]
cubic foot of atmosphere [cu ft atm; scf]
cubic yard of atmosphere [cu yd atm; scy]
cubic foot of natural gas
foot-poundal [ft pdl]
foot-pound force [ft lbf]
gallon-atmosphere (US) [US gal atm]
gallon-atmosphere (imperial) [imp gal atm]
inch-pound force [in lbf]
quad
therm (U.S.)
therm (E.C.)

calories related

calorie (20 °C) [cal20 °C]
calorie (thermochemical) [calth]
calorie (15 °C) [cal15 °C]
calorie (International Table) [calIT]
calorie (mean) [calmean]
calorie (3.98 °C) [cal3.98 °C]
kilocalorie; large calorie [kcal; Cal]

physical

atomic unit of energy [au]
Celsius heat unit (International Table) [CHUIT]
cubic centimetre of atmosphere; standard cubic centimetre [cc atm; scc]
electronvolt [eV]
erg (cgs unit) [erg]
litre-atmosphere [l atm]
hartree [Eh]
rydberg [Ry]
thermie [th]

time related

horsepower-hour [hp·h]
watt-second [W·s]
watt-hour [W·h]
kilowatt-second [kW·s]
kilowatt-hour [kW·h]

materials related

barrel of oil equivalent [bboe]
ton of TNT [tTNT]
ton of coal equivalent [TCE]
ton of oil equivalent [TOE]
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