Convert kilocalorie to kilojoule

1 kcal = 4.184 kJ

1 kcal = 4.18 kJ
1 kcal in every energy unit
joule4,180 J
kilojoule4.18 kJ
megajoule0.00418 MJ
calorie1,000 cal
kilocalorie1 kcal
watt-hour1.16 Wh
kilowatt-hour0.00116 kWh
British thermal unit3.97 BTU
foot-pound3,090 ft⋅lb
electron volt2.61e+22 eV
kiloelectron volt2.61e+19 keV
megaelectron volt2.61e+16 MeV
How the conversion works

Multiply by 4.184 to go from kilocalorie to kilojoule, or divide by it to go back. Every conversion on this site routes through the SI value (J) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? kilojoule to kilocalorie — 1 kJ = 0.2390057361 kcal.

kilocalorie to kilojoule — common values
1 kcal4.184 kJ
2 kcal8.368 kJ
3 kcal12.552 kJ
5 kcal20.92 kJ
10 kcal41.84 kJ
15 kcal62.76 kJ
20 kcal83.68 kJ
25 kcal104.6 kJ
50 kcal209.2 kJ
75 kcal313.8 kJ
100 kcal418.4 kJ
250 kcal1,046 kJ
500 kcal2,092 kJ
1000 kcal4,184 kJ