Kilocalories Conversion

The kilocalorie is a unit used to measure energy. Use one of the conversion calculators below to convert to another unit of measure, or read on to learn more about kilocalories.

Kilocalorie Conversion Calculators

Choose a unit of energy to convert to.

Joules
Calories
Watts x Time
Thermal Units
Electronvolts

Kilocalorie Definition and Usage

One kilocalorie, is equal to the heat needed to raise the temperature of one kilogram of water from 14.5 to 15.5 degrees Celsius.

Kilocalories can be abbreviated as kcal, for example 1 kilocalorie can be written as 1 kcal.

When being used to measure nutrition or metabolic processes, the large calorie is used, which is equal to one kilocalorie.

Uses

The large calorie is most often used to measure the energy content in foods. This is used to measure the energy stored in foods that is used by the body to perform work.

Kilocalories Measurement Conversion Table

Common kilocalorie values and equivalent imperial and metric energy measurements
kilocalories joules kilojoules megajoules gigajoules calories megacalories watt-hours kilowatt-hours megawatt-hours watt-seconds british thermal units million BTU therms quads electronvolts kiloelectronvolts megaelectronvolts
1 kcal 4,184 J 4.184 kJ 0.004184 MJ 0.000004184 GJ 1,000 cal 0.001 Mcal 1.162222 Wh 0.001162 kWh 0.0000011622 MWh 4,184 Ws 3.965667 BTU 0.0000039657 MMBTU 0.000039657 0.0000000000000039657 26,113,999,999,999,999,475,712 eV 26,114,000,000,000,000,000 keV 26,114,000,000,000,000 MeV
2 kcal 8,368 J 8.368 kJ 0.008368 MJ 0.000008368 GJ 2,000 cal 0.002 Mcal 2.324444 Wh 0.002324 kWh 0.0000023244 MWh 8,368 Ws 7.931334 BTU 0.0000079313 MMBTU 0.000079313 0.0000000000000079313 52,229,000,000,000,000,786,432 eV 52,229,000,000,000,000,000 keV 52,229,000,000,000,000 MeV
3 kcal 12,552 J 12.552 kJ 0.012552 MJ 0.000012552 GJ 3,000 cal 0.003 Mcal 3.486667 Wh 0.003487 kWh 0.0000034867 MWh 12,552 Ws 11.897 BTU 0.000011897 MMBTU 0.000119 0.000000000000011897 78,343,000,000,000,004,456,448 eV 78,343,000,000,000,000,000 keV 78,343,000,000,000,000 MeV
4 kcal 16,736 J 16.736 kJ 0.016736 MJ 0.000016736 GJ 4,000 cal 0.004 Mcal 4.648889 Wh 0.004649 kWh 0.0000046489 MWh 16,736 Ws 15.862667 BTU 0.000015863 MMBTU 0.000159 0.000000000000015863 104,460,000,000,000,005,242,880 eV 104,460,000,000,000,000,000 keV 104,460,000,000,000,000 MeV
5 kcal 20,920 J 20.92 kJ 0.02092 MJ 0.00002092 GJ 5,000 cal 0.005 Mcal 5.811111 Wh 0.005811 kWh 0.0000058111 MWh 20,920 Ws 19.828334 BTU 0.000019828 MMBTU 0.000198 0.000000000000019828 130,570,000,000,000,001,572,864 eV 130,570,000,000,000,000,000 keV 130,570,000,000,000,000 MeV
6 kcal 25,104 J 25.104 kJ 0.025104 MJ 0.000025104 GJ 6,000 cal 0.006 Mcal 6.973333 Wh 0.006973 kWh 0.0000069733 MWh 25,104 Ws 23.794001 BTU 0.000023794 MMBTU 0.000238 0.000000000000023794 156,690,000,000,000,016,252,928 eV 156,690,000,000,000,000,000 keV 156,690,000,000,000,000 MeV
7 kcal 29,288 J 29.288 kJ 0.029288 MJ 0.000029288 GJ 7,000 cal 0.007 Mcal 8.135556 Wh 0.008136 kWh 0.0000081356 MWh 29,288 Ws 27.759668 BTU 0.00002776 MMBTU 0.000278 0.00000000000002776 182,799,999,999,999,995,805,696 eV 182,800,000,000,000,000,000 keV 182,800,000,000,000,000 MeV
8 kcal 33,472 J 33.472 kJ 0.033472 MJ 0.000033472 GJ 8,000 cal 0.008 Mcal 9.297778 Wh 0.009298 kWh 0.0000092978 MWh 33,472 Ws 31.725335 BTU 0.000031725 MMBTU 0.000317 0.000000000000031725 208,920,000,000,000,010,485,760 eV 208,920,000,000,000,000,000 keV 208,920,000,000,000,000 MeV
9 kcal 37,656 J 37.656 kJ 0.037656 MJ 0.000037656 GJ 9,000 cal 0.009 Mcal 10.46 Wh 0.01046 kWh 0.00001046 MWh 37,656 Ws 35.691001 BTU 0.000035691 MMBTU 0.000357 0.000000000000035691 235,029,999,999,999,990,038,528 eV 235,030,000,000,000,000,000 keV 235,030,000,000,000,000 MeV
10 kcal 41,840 J 41.84 kJ 0.04184 MJ 0.00004184 GJ 10,000 cal 0.01 Mcal 11.622222 Wh 0.011622 kWh 0.000011622 MWh 41,840 Ws 39.656668 BTU 0.000039657 MMBTU 0.000397 0.000000000000039657 261,140,000,000,000,003,145,728 eV 261,140,000,000,000,000,000 keV 261,140,000,000,000,000 MeV
11 kcal 46,024 J 46.024 kJ 0.046024 MJ 0.000046024 GJ 11,000 cal 0.011 Mcal 12.784444 Wh 0.012784 kWh 0.000012784 MWh 46,024 Ws 43.622335 BTU 0.000043622 MMBTU 0.000436 0.000000000000043622 287,259,999,999,999,984,271,360 eV 287,260,000,000,000,000,000 keV 287,260,000,000,000,000 MeV
12 kcal 50,208 J 50.208 kJ 0.050208 MJ 0.000050208 GJ 12,000 cal 0.012 Mcal 13.946667 Wh 0.013947 kWh 0.000013947 MWh 50,208 Ws 47.588002 BTU 0.000047588 MMBTU 0.000476 0.000000000000047588 313,369,999,999,999,997,378,560 eV 313,370,000,000,000,000,000 keV 313,370,000,000,000,000 MeV
13 kcal 54,392 J 54.392 kJ 0.054392 MJ 0.000054392 GJ 13,000 cal 0.013 Mcal 15.108889 Wh 0.015109 kWh 0.000015109 MWh 54,392 Ws 51.553669 BTU 0.000051554 MMBTU 0.000516 0.000000000000051554 339,490,000,000,000,012,058,624 eV 339,490,000,000,000,000,000 keV 339,490,000,000,000,000 MeV
14 kcal 58,576 J 58.576 kJ 0.058576 MJ 0.000058576 GJ 14,000 cal 0.014 Mcal 16.271111 Wh 0.016271 kWh 0.000016271 MWh 58,576 Ws 55.519336 BTU 0.000055519 MMBTU 0.000555 0.000000000000055519 365,599,999,999,999,991,611,392 eV 365,600,000,000,000,000,000 keV 365,600,000,000,000,000 MeV
15 kcal 62,760 J 62.76 kJ 0.06276 MJ 0.00006276 GJ 15,000 cal 0.015 Mcal 17.433333 Wh 0.017433 kWh 0.000017433 MWh 62,760 Ws 59.485002 BTU 0.000059485 MMBTU 0.000595 0.000000000000059485 391,720,000,000,000,006,291,456 eV 391,720,000,000,000,000,000 keV 391,720,000,000,000,000 MeV
16 kcal 66,944 J 66.944 kJ 0.066944 MJ 0.000066944 GJ 16,000 cal 0.016 Mcal 18.595556 Wh 0.018596 kWh 0.000018596 MWh 66,944 Ws 63.450669 BTU 0.000063451 MMBTU 0.000635 0.000000000000063451 417,829,999,999,999,985,844,224 eV 417,830,000,000,000,000,000 keV 417,830,000,000,000,000 MeV
17 kcal 71,128 J 71.128 kJ 0.071128 MJ 0.000071128 GJ 17,000 cal 0.017 Mcal 19.757778 Wh 0.019758 kWh 0.000019758 MWh 71,128 Ws 67.416336 BTU 0.000067416 MMBTU 0.000674 0.000000000000067416 443,950,000,000,000,000,524,288 eV 443,950,000,000,000,000,000 keV 443,950,000,000,000,000 MeV
18 kcal 75,312 J 75.312 kJ 0.075312 MJ 0.000075312 GJ 18,000 cal 0.018 Mcal 20.92 Wh 0.02092 kWh 0.00002092 MWh 75,312 Ws 71.382003 BTU 0.000071382 MMBTU 0.000714 0.000000000000071382 470,059,999,999,999,980,077,056 eV 470,060,000,000,000,000,000 keV 470,060,000,000,000,000 MeV
19 kcal 79,496 J 79.496 kJ 0.079496 MJ 0.000079496 GJ 19,000 cal 0.019 Mcal 22.082222 Wh 0.022082 kWh 0.000022082 MWh 79,496 Ws 75.34767 BTU 0.000075348 MMBTU 0.000753 0.000000000000075348 496,179,999,999,999,994,757,120 eV 496,180,000,000,000,000,000 keV 496,180,000,000,000,000 MeV
20 kcal 83,680 J 83.68 kJ 0.08368 MJ 0.00008368 GJ 20,000 cal 0.02 Mcal 23.244444 Wh 0.023244 kWh 0.000023244 MWh 83,680 Ws 79.313337 BTU 0.000079313 MMBTU 0.000793 0.000000000000079313 522,289,999,999,999,974,309,888 eV 522,290,000,000,000,000,000 keV 522,290,000,000,000,000 MeV

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