Energy Units Converter



This is an online Converter of Energy units. It also includes conversion tables.

Energy Units

Joule units
J : joule
kJ : kilojoule
MJ : megajoule
GJ : gigajoule
TJ : terajoule
µJ : microjoule
nJ : nanojoule
pJ : picojoule

Calorie units
cal : calorie
kcal : kilocalorie
cal-th : calorie [thermochemical]
kcal-th : kilocalorie [thermochemical]

Watt Units
Wh : watt-hour
kWh : kilowatt hour
MWh : megawatt hour

US/UK Customary
ftlb : foot pound
BTU-IT : British Thermal Unit-IT
BTU-th : British Thermal Unit-th
thm : therm
quad : quadrillion

eV Units
eV : electron volt
meV : milli electron volt
keV : kilo electron volt
MeV : méga electron volt
GeV : giga electron volt
TeV : téra electron volt

Energy Unit Conversion Tables

Joule units / Joule units
# J kJ MJ GJ TJ µJ nJ pJ
1 J = 10.0011.0e-61.0e-91.0e-121.0e+61.0e+91.0e+12
1 kJ = 100010.0011.0e-61.0e-91.0e+91.0e+121.0e+15
1 MJ = 1.0e+6100010.0011.0e-61.0e+121.0e+151.0e+18
1 GJ = 1.0e+91.0e+6100010.0011.0e+151.0e+181.0e+21
1 TJ = 1.0e+121.0e+91.0e+6100011.0e+181.0e+211.0e+24
1 µJ = 1.0e-61.0e-91.0e-121.0e-151.0e-18110001.0e+6
1 nJ = 1.0e-91.0e-121.0e-151.0e-181.0e-210.00111000
1 pJ = 1.0e-121.0e-151.0e-181.0e-211.0e-241.0e-60.0011

Joule units / Calorie units
# cal kcal cal-th kcal-th
1 J = 0.23880.00020.2390.0002
1 kJ = 238.84590.2388239.00570.239
1 MJ = 2.3885e+5238.84592.3901e+5239.0057
1 GJ = 2.3885e+82.3885e+52.3901e+82.3901e+5
1 TJ = 2.3885e+112.3885e+82.3901e+112.3901e+8
1 µJ = 2.3885e-72.3885e-102.3901e-72.3901e-10
1 nJ = 2.3885e-102.3885e-132.3901e-102.3901e-13
1 pJ = 2.3885e-132.3885e-162.3901e-132.3901e-16

Joule units / Watt Units
# Wh kWh MWh
1 J = 0.00032.7778e-72.7778e-10
1 kJ = 0.27780.00032.7778e-7
1 MJ = 277.77780.27780.0003
1 GJ = 2.7778e+5277.77780.2778
1 TJ = 2.7778e+82.7778e+5277.7778
1 µJ = 2.7778e-102.7778e-132.7778e-16
1 nJ = 2.7778e-132.7778e-162.7778e-19
1 pJ = 2.7778e-162.7778e-192.7778e-22

Joule units / US/UK Customary
# ftlb BTU-IT BTU-th thm quad
1 J = 0.73760.00090.00099.4782e-99.4782e-19
1 kJ = 737.5610.94780.94859.4782e-69.4782e-16
1 MJ = 7.3756e+5947.8171948.45140.00959.4782e-13
1 GJ = 7.3756e+89.4782e+59.4845e+59.47829.4782e-10
1 TJ = 7.3756e+119.4782e+89.4845e+89478.17129.4782e-7
1 µJ = 7.3756e-79.4782e-109.4845e-109.4782e-159.4782e-25
1 nJ = 7.3756e-109.4782e-139.4845e-139.4782e-189.4782e-28
1 pJ = 7.3756e-139.4782e-169.4845e-169.4782e-219.4782e-31

Joule units / eV Units
# eV meV keV MeV GeV TeV
1 J = 6.2415e+186.2415e+216.2415e+156.2415e+126.2415e+96.2415e+6
1 kJ = 6.2415e+216.2415e+246.2415e+186.2415e+156.2415e+126.2415e+9
1 MJ = 6.2415e+246.2415e+276.2415e+216.2415e+186.2415e+156.2415e+12
1 GJ = 6.2415e+276.2415e+306.2415e+246.2415e+216.2415e+186.2415e+15
1 TJ = 6.2415e+306.2415e+336.2415e+276.2415e+246.2415e+216.2415e+18
1 µJ = 6.2415e+126.2415e+156.2415e+96.2415e+66241.50766.2415
1 nJ = 6.2415e+96.2415e+126.2415e+66241.50766.24150.0062
1 pJ = 6.2415e+66.2415e+96241.50766.24150.00626.2415e-6

Calorie units / Joule units
# J kJ MJ GJ TJ µJ nJ pJ
1 cal = 4.18680.00424.1868e-64.1868e-94.1868e-124.1868e+64.1868e+94.1868e+12
1 kcal = 4186.84.18680.00424.1868e-64.1868e-94.1868e+94.1868e+124.1868e+15
1 cal-th = 4.1840.00424.184e-64.184e-94.184e-124.184e+64.184e+94.184e+12
1 kcal-th = 41844.1840.00424.184e-64.184e-94.184e+94.184e+124.184e+15

Calorie units / Calorie units
# cal kcal cal-th kcal-th
1 cal = 10.0011.00070.001
1 kcal = 100011000.66921.0007
1 cal-th = 0.99930.00110.001
1 kcal-th = 999.33120.999310001

Calorie units / Watt Units
# Wh kWh MWh
1 cal = 0.00121.163e-61.163e-9
1 kcal = 1.1630.00121.163e-6
1 cal-th = 0.00121.1622e-61.1622e-9
1 kcal-th = 1.16220.00121.1622e-6

Calorie units / US/UK Customary
# ftlb BTU-IT BTU-th thm quad
1 cal = 3.0880.0040.0043.9683e-83.9683e-18
1 kcal = 3088.02053.96833.9713.9683e-53.9683e-15
1 cal-th = 3.0860.0040.0043.9657e-83.9657e-18
1 kcal-th = 3085.95543.96573.96833.9657e-53.9657e-15

Calorie units / eV Units
# eV meV keV MeV GeV TeV
1 cal = 2.6132e+192.6132e+222.6132e+162.6132e+132.6132e+102.6132e+7
1 kcal = 2.6132e+222.6132e+252.6132e+192.6132e+162.6132e+132.6132e+10
1 cal-th = 2.6114e+192.6114e+222.6114e+162.6114e+132.6114e+102.6114e+7
1 kcal-th = 2.6114e+222.6114e+252.6114e+192.6114e+162.6114e+132.6114e+10

Watt Units / Joule units
# J kJ MJ GJ TJ µJ nJ pJ
1 Wh = 36003.60.00363.6e-63.6e-93.6e+93.6e+123.6e+15
1 kWh = 3.6e+636003.60.00363.6e-63.6e+123.6e+153.6e+18
1 MWh = 3.6e+93.6e+636003.60.00363.6e+153.6e+183.6e+21

Watt Units / Calorie units
# cal kcal cal-th kcal-th
1 Wh = 859.84520.8598860.42070.8604
1 kWh = 8.5985e+5859.84528.6042e+5860.4207
1 MWh = 8.5985e+88.5985e+58.6042e+88.6042e+5

Watt Units / Watt Units
# Wh kWh MWh
1 Wh = 10.0011.0e-6
1 kWh = 100010.001
1 MWh = 1.0e+610001

Watt Units / US/UK Customary
# ftlb BTU-IT BTU-th thm quad
1 Wh = 2655.21973.41213.41443.4121e-53.4121e-15
1 kWh = 2.6552e+63412.14163414.42510.03413.4121e-12
1 MWh = 2.6552e+93.4121e+63.4144e+634.12143.4121e-9

Watt Units / eV Units
# eV meV keV MeV GeV TeV
1 Wh = 2.2469e+222.2469e+252.2469e+192.2469e+162.2469e+132.2469e+10
1 kWh = 2.2469e+252.2469e+282.2469e+222.2469e+192.2469e+162.2469e+13
1 MWh = 2.2469e+282.2469e+312.2469e+252.2469e+222.2469e+192.2469e+16

US/UK Customary / Joule units
# J kJ MJ GJ TJ µJ nJ pJ
1 ftlb = 1.35580.00141.3558e-61.3558e-91.3558e-121.3558e+61.3558e+91.3558e+12
1 BTU-IT = 1055.05591.05510.00111.0551e-61.0551e-91.0551e+91.0551e+121.0551e+15
1 BTU-th = 1054.35031.05440.00111.0544e-61.0544e-91.0544e+91.0544e+121.0544e+15
1 thm = 1.0551e+81.0551e+5105.50560.10550.00011.0551e+141.0551e+171.0551e+20
1 quad = 1.0551e+181.0551e+151.0551e+121.0551e+91.0551e+61.0551e+241.0551e+271.0551e+30

US/UK Customary / Calorie units
# cal kcal cal-th kcal-th
1 ftlb = 0.32380.00030.3240.0003
1 BTU-IT = 251.99580.252252.16440.2522
1 BTU-th = 251.82720.2518251.99580.252
1 thm = 2.52e+725199.57612.5216e+725216.4401
1 quad = 2.52e+172.52e+142.5216e+172.5216e+14

US/UK Customary / Watt Units
# Wh kWh MWh
1 ftlb = 0.00043.7662e-73.7662e-10
1 BTU-IT = 0.29310.00032.9307e-7
1 BTU-th = 0.29290.00032.9288e-7
1 thm = 29307.10729.30710.0293
1 quad = 2.9307e+142.9307e+112.9307e+8

US/UK Customary / US/UK Customary
# ftlb BTU-IT BTU-th thm quad
1 ftlb = 10.00130.00131.2851e-81.2851e-18
1 BTU-IT = 778.168111.00071.0e-51.0e-15
1 BTU-th = 777.64770.999319.9933e-69.9933e-16
1 thm = 7.7817e+71000001.0007e+511.0e-10
1 quad = 7.7817e+171.0e+151.0007e+151.0e+101

US/UK Customary / eV Units
# eV meV keV MeV GeV TeV
1 ftlb = 8.4624e+188.4624e+218.4624e+158.4624e+128.4624e+98.4624e+6
1 BTU-IT = 6.5851e+216.5851e+246.5851e+186.5851e+156.5851e+126.5851e+9
1 BTU-th = 6.5807e+216.5807e+246.5807e+186.5807e+156.5807e+126.5807e+9
1 thm = 6.5851e+266.5851e+296.5851e+236.5851e+206.5851e+176.5851e+14
1 quad = 6.5851e+366.5851e+396.5851e+336.5851e+306.5851e+276.5851e+24

eV Units / Joule units
# J kJ MJ GJ TJ µJ nJ pJ
1 eV = 1.6022e-191.6022e-221.6022e-251.6022e-281.6022e-311.6022e-131.6022e-101.6022e-7
1 meV = 1.6022e-221.6022e-251.6022e-281.6022e-311.6022e-341.6022e-161.6022e-131.6022e-10
1 keV = 1.6022e-161.6022e-191.6022e-221.6022e-251.6022e-281.6022e-101.6022e-70.0002
1 MeV = 1.6022e-131.6022e-161.6022e-191.6022e-221.6022e-251.6022e-70.00020.1602
1 GeV = 1.6022e-101.6022e-131.6022e-161.6022e-191.6022e-220.00020.1602160.2177
1 TeV = 1.6022e-71.6022e-101.6022e-131.6022e-161.6022e-190.1602160.21771.6022e+5

eV Units / Calorie units
# cal kcal cal-th kcal-th
1 eV = 3.8267e-203.8267e-233.8293e-203.8293e-23
1 meV = 3.8267e-233.8267e-263.8293e-233.8293e-26
1 keV = 3.8267e-173.8267e-203.8293e-173.8293e-20
1 MeV = 3.8267e-143.8267e-173.8293e-143.8293e-17
1 GeV = 3.8267e-113.8267e-143.8293e-113.8293e-14
1 TeV = 3.8267e-83.8267e-113.8293e-83.8293e-11

eV Units / Watt Units
# Wh kWh MWh
1 eV = 4.4505e-234.4505e-264.4505e-29
1 meV = 4.4505e-264.4505e-294.4505e-32
1 keV = 4.4505e-204.4505e-234.4505e-26
1 MeV = 4.4505e-174.4505e-204.4505e-23
1 GeV = 4.4505e-144.4505e-174.4505e-20
1 TeV = 4.4505e-114.4505e-144.4505e-17

eV Units / US/UK Customary
# ftlb BTU-IT BTU-th thm quad
1 eV = 1.1817e-191.5186e-221.5196e-221.5186e-271.5186e-37
1 meV = 1.1817e-221.5186e-251.5196e-251.5186e-301.5186e-40
1 keV = 1.1817e-161.5186e-191.5196e-191.5186e-241.5186e-34
1 MeV = 1.1817e-131.5186e-161.5196e-161.5186e-211.5186e-31
1 GeV = 1.1817e-101.5186e-131.5196e-131.5186e-181.5186e-28
1 TeV = 1.1817e-71.5186e-101.5196e-101.5186e-151.5186e-25

eV Units / eV Units
# eV meV keV MeV GeV TeV
1 eV = 110000.0011.0e-61.0e-91.0e-12
1 meV = 0.00111.0e-61.0e-91.0e-121.0e-15
1 keV = 10001.0e+610.0011.0e-61.0e-9
1 MeV = 1.0e+61.0e+9100010.0011.0e-6
1 GeV = 1.0e+91.0e+121.0e+6100010.001
1 TeV = 1.0e+121.0e+151.0e+91.0e+610001

See also

Unit conversion