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Energy Converter

Energy Conversion [?]
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User Guide

This energy units conversion tool allows you to convert energy values to the equivalent energy in other measurement units.

Conversion Factors

The following units and associated conversion factors in Joules (derived SI unit for energy) are used by this energy converter:

Food Energy Units

  • kilocalorie (kcal) = 4,184 J
  • kilojoule (kJ) = 1,000 J

Heat Energy Units

  • british thermal units ISO (Btu ISO) = 1055.06 J
  • calorie (cal) = 4.184 J
  • kilocalorie (kcal) = 4,184 J
  • joule (J) = 1 J
  • kilojoule (kJ) = 1,000 J

Nuclear Energy Units

  • electronvolt (eV) = 1.602176634 x 10-19 J
  • kiloton of TNT (kt TNT) = 4.184 x 10+12 J
  • megaton of TNT (Mt TNT) = 4.184 x 10+15 J
  • gigaton of TNT (Gt TNT) = 4.184 x 10+18 J
  • teraton of TNT (Tt TNT) = 4.184 x 10+21 J

Mechanical Energy Units

  • foot-pound (ft·lb) = 1.3558179483314004 J
  • newton-metre (N·m) = 1 J
  • kilogram-force metres/sec (kgf·m/s) – 9.80665 J
  • gram-force centimetres/sec (gf·cm/s) – 9.80665 x 10-5 J
  • erg (erg) = 1 x 10-7 J

SI Metric Prefix Energy Units

  • quectojoule (qJ) – 1 x 10-30 J
  • rontojoule (rJ) – 1 x 10-27 J
  • yoctojoule (yJ) – 1 x 10-24 J
  • zeptojoule (zJ) – 1 x 10-21 J
  • attojoule (aJ) – 1 x 10-18 J
  • femtojoule (fJ) – 1 x 10-15 J
  • picojoule (pJ) – 1 x 10-12 J
  • nanojoule (nJ) – 1 x 10-9 J
  • microjoule (µJ) – 0.000001 J
  • millijoule (mJ) – 0.001 J
  • centijoule (cJ) – 0.01 J
  • decijoule (dJ) – 0.1 J
  • joule (J) – 1 J
  • decajoule (daJ) – 10 J
  • hectojoule (hJ) – 100 J
  • kilojoule (kJ) – 1,000 J
  • megajoule (MJ) – 1,000,000 J
  • gigajoule (GJ) – 1 x 10+9 J
  • terajoule (TJ) – 1 x 10+12 J
  • petajoule (PJ) – 1 x 10+15 J
  • exajoule (EJ) – 1 x 10+18 J
  • zettajoule (ZJ) – 1 x 10+21 J
  • yottajoule (YJ) – 1 x 10+24 J
  • ronnajoule (RJ) – 1 x 10+27 J
  • quettajoule (QJ) – 1 x 10+30 J

Electricity Energy Units

  • quectowatt-hour (qW·h) – 3.6 x 10-30 J
  • rontowatt-hour (rW·h) – 3.6 x 10-27 J
  • yoctowatt-hour (yW·h) – 3.6 x 10-21 J
  • zeptowatt-hour (zW·h) – 3.6 x 10-18 J
  • attowatt-hour (aW·h) – 3.6 x 10-15 J
  • femtowatt-hour (fW·h) – 3.6 x 10-12 J
  • picowatt-hour (pW·h) – 3.6 x 10-9 J
  • nanowatt-hour (nW·h) – 3.6 x 10-6 J
  • microwatt-hour (µW·h) – 3.6 x 10-3 J
  • milliwatt-hour (mW·h) – 3.6 J
  • centiwatt-hour (cW·h) – 36 J
  • deciwatt-hour (dW·h) – 360 J
  • watt-hour (W·h) – 3,600 J
  • decawatt-hour (daW·h) – 36,000 J
  • hectowatt-hour (hW·h) – 360,000 J
  • kilowatt-hour (kW·h) – 3,600,000 J
  • megawatt-hour (MW·h) – 3.6 x 10+9 J
  • gigawatt-hour (GW·h) – 3.6 x 10+12 J
  • terawatt-hour (TW·h) – 3.6 x 10+15 J
  • petawatt-hour (PW·h) – 3.6 x 10+18 J
  • exawatt-hour (EW·h) – 3.6 x 10+21 J
  • zettawatt-hour (ZW·h) – 3.6 x 10+24 J
  • yottawatt-hour (YW·h) – 3.6 x 10+27 J
  • ronnawatt-hour (RW·h) – 3.6 x 10+27 J
  • quettawatt-hour (QW·h) – 3.6 x 10+30 J

Calorie Metric Prefix Energy Units

  • quectocalorie (qcal) – 4.184 x 10-30 J
  • rontocalorie (rcal) – 4.184 x 10-27 J
  • yoctocalorie (ycal) – 4.184 x 10-24 J
  • zeptocalorie (zcal) – 4.184 x 10-21 J
  • attocalorie (acal) – 4.184 x 10-18 J
  • femtocalorie (fcal) – 4.184 x 10-15 J
  • picocalorie (pcal) – 4.184 x 10-12 J
  • nanocalorie (ncal) – 4.184 x 10-9 J
  • microcalorie (µcal) – 0.000004184 J
  • millicalorie (mcal) – 0.004184 J
  • centicalorie (ccal) – 0.04184 J
  • decicalorie (dcal) – 0.4184 J
  • calorie (cal) – 4.184 J
  • decacalorie (dacal) – 10 J
  • hectocalorie (hcal) – 100 J
  • kilocalorie (kcal) – 1,000 J
  • megacalorie (Mcal) – 1,000,000 J
  • gigacalorie (Gcal) – 4.184 x 10+9 J
  • teracalorie (Tcal) – 4.184 x 10+12 J
  • petacalorie (Pcal) – 4.184 x 10+15 J
  • exacalorie (Ecal) – 4.184 x 10+18 J
  • zettacalorie (Zcal) – 4.184 x 10+21 J
  • yottacalorie (Ycal) – 4.184 x 10+24 J
  • ronnacalorie (Rcal) – 4.184 x 10+27 J
  • quettacalorie (Qcal) – 4.184 x 10+30 J

Electronvolt Metric Prefix Energy Units

  • quectoelectronvolt (qeV) – 1.602176634 x 10-30 J
  • rontoelectronvolt (reV) – 1.602176634 x 10-27 J
  • yoctoelectronvolt (yeV) – 1.602176634 x 10-43 J
  • zeptoelectronvolt (zeV) – 1.602176634 x 10-40 J
  • attoelectronvolt (aeV) – 1.602176634 x 10-37 J
  • femtoelectronvolt (feV) – 1.602176634 x 10-34 J
  • picoelectronvolt (peV) – 1.602176634 x 10-31 J
  • nanoelectronvolt (neV) – 1.602176634 x 10-28 J
  • microelectronvolt (µeV) – 1.602176634 x 10-25 J
  • millielectronvolt (meV) – 1.602176634 x 10-22 J
  • centielectronvolt (ceV) – 1.602176634 x 10-21 J
  • decielectronvolt (deV) – 1.602176634 x 10-20 J
  • electronvolt (eV) – 1.602176634 x 10-19 J
  • decaelectronvolt (daeV) – 1.602176634 x 10-18 J
  • hectoelectronvolt (heV) – 1.602176634 x 10-17 J
  • kiloelectronvolt (keV) – 1.602176634 x 10-16 J
  • megaelectronvolt (MeV) – 1.602176634 x 10-13 J
  • gigaelectronvolt (GeV) – 1.602176634 x 10-10 J
  • teraelectronvolt (TeV) – 1.602176634 x 10-7 J
  • petaelectronvolt (PeV) – 1.602176634 x 10-4 J
  • exaelectronvolt (EeV) – 1.602176634 x 10-1 J
  • zettaelectronvolt (ZeV) – 1.602176634 x 10+2 J
  • yottaelectronvolt (YeV) – 1.602176634 x 10+5 J
  • ronnaelectronvolt (ReV) – 1.602176634 x 10+27 J
  • quettaelectronvolt (QeV) – 1.602176634 x 10+30 J