Convert Kilocalorie to Megajoule Online

About Kilocalorie to Megajoule Conversion

This converter converts Kilocalorie (kcal) to Megajoule (MJ). One Kilocalorie (kcal) equals 0.004184 Megajoule (MJ).

Formula:

1 Kilocalorie (kcal) = 0.004184 Megajoule (MJ)

Example:

1 kcal = 0.004184 MJ
2 kcal = 0.008368 MJ

Kilocalorie (kcal) to Megajoule (MJ) Conversion

Convert Kilocalorie to Megajoule using the exact conversion factor. This page provides the formula, worked examples, and real-world use cases for practical understanding.

Conversion Formula

Megajoule = Kilocalorie × 0.004184

To convert Kilocalorie (kcal) to Megajoule (MJ), multiply the value by 0.004184. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 kcal to MJ.

  • Step 1: Write the formula: MJ = kcal × 0.004184
  • Step 2: Substitute: 1 × 0.004184
  • Step 3: Result: 0.004184 MJ
So, 1 kcal = 0.004184 MJ.

About the Units

Kilocalorie (kcal)

One Kilocalorie (kcal) equals 0.004184 Megajoule (MJ)

A widely used unit across scientific, engineering, and measurement contexts.

Megajoule (MJ)

One Megajoule (MJ) equals 239.005736 Kilocalorie (kcal)

Used for extremely large distances such as astronomical or planetary scales.

Where This Conversion Is Used

  • Converting values from Kilocalorie to Megajoule for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Megajoule representation.
  • Applied when comparing different measurement systems across tools and documents.

Frequently Asked Questions

How many Megajoule (MJ) are in 1 Kilocalorie (kcal)?

1 kcal = 0.004184 MJ.

What is the formula for converting Kilocalorie (kcal) to Megajoule (MJ)?

Multiply the kcal value by 0.004184.

Can I reverse the conversion?

Yes. 1 MJ = 239.005736 kcal.

Conclusion

By applying the conversion factor shown above, you can reliably convert Kilocalorie (kcal) to Megajoule (MJ) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert Kilocalorie to Other Units

Kilocalorie to Joule

1 kcal = 4184 J

1 Kilocalorie (kcal) = 4184 Joules (J)

1 kcal equals 4184 Js.

Kilocalorie to Kilojoule

1 kcal = 4.184 kJ

1 Kilocalorie (kcal) = 4.184 Kilojoules (kJ)

1 kcal equals 4.184 kJs.

Kilocalorie to Megajoule

1 kcal = 0.004184 MJ

1 Kilocalorie (kcal) = 0.004184 Megajoule (MJ)

1 kcal equals 0.004184 MJ.

Kilocalorie to Gigajoule

1 kcal = 0.000004184 GJ

1 Kilocalorie (kcal) = 0.000004184 Gigajoule (GJ)

1 kcal equals 0.000004184 GJ.

Kilocalorie to Watt-hour

1 kcal = 1.1622222222222223 Wh

1 Kilocalorie (kcal) = 1.1622222222222223 Watt-hours (Wh)

1 kcal equals 1.1622222222222223 Whs.

Kilocalorie to Kilowatt-hour

1 kcal = 0.0011622222222222223 kWh

1 Kilocalorie (kcal) = 0.0011622222222222223 Kilowatt-hour (kWh)

1 kcal equals 0.0011622222222222223 kWh.

Kilocalorie to Megawatt-hour

1 kcal = 0.0000011622222222222223 MWh

1 Kilocalorie (kcal) = 0.0000011622222222222223 Megawatt-hour (MWh)

1 kcal equals 0.0000011622222222222223 MWh.

Kilocalorie to Erg

1 kcal = 41840000000 erg

1 Kilocalorie (kcal) = 41840000000 Ergs

1 kcal equals 41840000000 ergs.

Kilocalorie to Calorie

1 kcal = 1000 cal

1 Kilocalorie (kcal) = 1000 Calories (cal)

1 kcal equals 1000 cals.

Kilocalorie to British Thermal Unit

1 kcal = 3.9656512425833603 BTU

1 Kilocalorie (kcal) = 3.9656512425833603 British Thermal Units (BTU)

1 kcal equals 3.9656512425833603 BTUs.

Kilocalorie to Foot-pound force

1 kcal = 3085.9600333303742 ft_lbf

1 Kilocalorie (kcal) = 3085.9600333303742 Foot-pound forces (ft⋅lbf)

1 kcal equals 3085.9600333303742 ft_lbves.

Kilocalorie to Horsepower-hour

1 kcal = 0.0015585671463432713 hp_h

1 Kilocalorie (kcal) = 0.0015585671463432713 Horsepower-hour (hp⋅h)

1 kcal equals 0.0015585671463432713 hp_h.

Kilocalorie to Therm

1 kcal = 0.000039656512425833605 therm_us

1 Kilocalorie (kcal) = 0.000039656512425833605 Therm (US)

1 kcal equals 0.000039656512425833605 therm_us.

Kilocalorie to Electronvolt

1 kcal = 2.6114473967543833e+22 eV

1 Kilocalorie (kcal) = 2.6114473967543833e+22 Electronvolts (eV)

1 kcal equals 2.6114473967543833e+22 eVs.

Kilocalorie to Kiloelectronvolt

1 kcal = 26114473967543833000 keV

1 Kilocalorie (kcal) = 26114473967543833000 Kiloelectronvolts (keV)

1 kcal equals 26114473967543833000 keVs.

Kilocalorie to Megaelectronvolt

1 kcal = 26114473967543828 MeV

1 Kilocalorie (kcal) = 26114473967543828 Megaelectronvolts (MeV)

1 kcal equals 26114473967543828 MeVs.

Kilocalorie to Gigaelectronvolt

1 kcal = 26114473967543.83 GeV

1 Kilocalorie (kcal) = 26114473967543.83 Gigaelectronvolts (GeV)

1 kcal equals 26114473967543.83 GeVs.

Kilocalorie to Tonne of Oil Equivalent

1 kcal = 9.993312314894431e-8 toe

1 Kilocalorie (kcal) = 9.993312314894431e-8 Tonne of Oil Equivalent (toe)

1 kcal equals 9.993312314894431e-8 toe.

Kilocalorie to Tonne of Coal Equivalent

1 kcal = 1.4276160449849187e-7 tce

1 Kilocalorie (kcal) = 1.4276160449849187e-7 Tonne of Coal Equivalent (tce)

1 kcal equals 1.4276160449849187e-7 tce.

Kilocalorie to Hartree

1 kcal = 959689217281022400000 hartree

1 Kilocalorie (kcal) = 959689217281022400000 Hartrees

1 kcal equals 959689217281022400000 hartrees.

Convert Megajoule to Other Units

Megajoule to Joule

1 MJ = 1000000 J

1 Megajoule (MJ) = 1000000 Joules (J)

1 MJ equals 1000000 Js.

Megajoule to Kilojoule

1 MJ = 1000 kJ

1 Megajoule (MJ) = 1000 Kilojoules (kJ)

1 MJ equals 1000 kJs.

Megajoule to Gigajoule

1 MJ = 0.001 GJ

1 Megajoule (MJ) = 0.001 Gigajoule (GJ)

1 MJ equals 0.001 GJ.

Megajoule to Watt-hour

1 MJ = 277.77777777777777 Wh

1 Megajoule (MJ) = 277.77777777777777 Watt-hours (Wh)

1 MJ equals 277.77777777777777 Whs.

Megajoule to Kilowatt-hour

1 MJ = 0.2777777777777778 kWh

1 Megajoule (MJ) = 0.2777777777777778 Kilowatt-hour (kWh)

1 MJ equals 0.2777777777777778 kWh.

Megajoule to Megawatt-hour

1 MJ = 0.0002777777777777778 MWh

1 Megajoule (MJ) = 0.0002777777777777778 Megawatt-hour (MWh)

1 MJ equals 0.0002777777777777778 MWh.

Megajoule to Erg

1 MJ = 10000000000000 erg

1 Megajoule (MJ) = 10000000000000 Ergs

1 MJ equals 10000000000000 ergs.

Megajoule to Calorie

1 MJ = 239005.7361376673 cal

1 Megajoule (MJ) = 239005.7361376673 Calories (cal)

1 MJ equals 239005.7361376673 cals.

Megajoule to Kilocalorie

1 MJ = 239.0057361376673 kcal

1 Megajoule (MJ) = 239.0057361376673 Kilocalories (kcal)

1 MJ equals 239.0057361376673 kcals.

Megajoule to British Thermal Unit

1 MJ = 947.8133944988911 BTU

1 Megajoule (MJ) = 947.8133944988911 British Thermal Units (BTU)

1 MJ equals 947.8133944988911 BTUs.

Megajoule to Foot-pound force

1 MJ = 737562.1494575464 ft_lbf

1 Megajoule (MJ) = 737562.1494575464 Foot-pound forces (ft⋅lbf)

1 MJ equals 737562.1494575464 ft_lbves.

Megajoule to Horsepower-hour

1 MJ = 0.372506488131757 hp_h

1 Megajoule (MJ) = 0.372506488131757 Horsepower-hour (hp⋅h)

1 MJ equals 0.372506488131757 hp_h.

Megajoule to Therm

1 MJ = 0.00947813394498891 therm_us

1 Megajoule (MJ) = 0.00947813394498891 Therm (US)

1 MJ equals 0.00947813394498891 therm_us.

Megajoule to Electronvolt

1 MJ = 6.241509074460763e+24 eV

1 Megajoule (MJ) = 6.241509074460763e+24 Electronvolts (eV)

1 MJ equals 6.241509074460763e+24 eVs.

Megajoule to Kiloelectronvolt

1 MJ = 6.241509074460763e+21 keV

1 Megajoule (MJ) = 6.241509074460763e+21 Kiloelectronvolts (keV)

1 MJ equals 6.241509074460763e+21 keVs.

Megajoule to Megaelectronvolt

1 MJ = 6241509074460762000 MeV

1 Megajoule (MJ) = 6241509074460762000 Megaelectronvolts (MeV)

1 MJ equals 6241509074460762000 MeVs.

Megajoule to Gigaelectronvolt

1 MJ = 6241509074460762 GeV

1 Megajoule (MJ) = 6241509074460762 Gigaelectronvolts (GeV)

1 MJ equals 6241509074460762 GeVs.

Megajoule to Tonne of Oil Equivalent

1 MJ = 0.000023884589662749594 toe

1 Megajoule (MJ) = 0.000023884589662749594 Tonne of Oil Equivalent (toe)

1 MJ equals 0.000023884589662749594 toe.

Megajoule to Tonne of Coal Equivalent

1 MJ = 0.00003412084237535656 tce

1 Megajoule (MJ) = 0.00003412084237535656 Tonne of Coal Equivalent (tce)

1 MJ equals 0.00003412084237535656 tce.

Megajoule to Hartree

1 MJ = 2.293712278396325e+23 hartree

1 Megajoule (MJ) = 2.293712278396325e+23 Hartrees

1 MJ equals 2.293712278396325e+23 hartrees.