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Megacalories to Joules Converter

Convert megacalories (Mcal) to joules (watt-seconds) (J), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
4,184,000 J
kilojoules
4,184 kJ
megajoules
4.184 MJ
gigajoules
0.004184 GJ
calories (thermochemical)
1,000,000 cal
kilocalories (food Calories)
1,000 kcal
watt-hours
1,162.22222222 Wh
kilowatt-hours
1.16222222222 kWh
megawatt-hours
0.00116222222222 MWh
British thermal units (IT)
3,965.66683139 Btu
million Btu
0.00396566683139 MMBtu
therms (100,000 Btu)
0.0396566683139 thm
quads (10¹⁵ Btu)
3.96566683139 × 10⁻¹² quad
electronvolts
2.61144739675 × 10²⁵ eV
kiloelectronvolts
2.61144739675 × 10²² keV
megaelectronvolts
2.61144739675 × 10¹⁹ MeV

1 Mcal = 4,184,000 J

Show the working
  1. 1 Mcal = 4184000 J
  2. 1 × 4184000 = 4184000 J

How to convert megacalories to joules

1 Mcal = 4,184,000 J, so multiply by 4,184,000 to go from megacalories to joules (watt-seconds). Going the other way, 1 J = 2.39005736138 × 10⁻⁷ Mcal.

J = Mcal × 4,184,000
Mcal = J × 2.39005736138

Worked example:

1 Mcal = 4184000 J
5 × 4184000 = 20920000 J

Megacalories to joules table

MegacaloriesJoules
1 Mcal4,184,000 J
2 Mcal8,368,000 J
3 Mcal12,552,000 J
4 Mcal16,736,000 J
5 Mcal20,920,000 J
6 Mcal25,104,000 J
7 Mcal29,288,000 J
8 Mcal33,472,000 J
9 Mcal37,656,000 J
10 Mcal41,840,000 J
15 Mcal62,760,000 J
20 Mcal83,680,000 J
25 Mcal104,600,000 J
30 Mcal125,520,000 J
40 Mcal167,360,000 J
50 Mcal209,200,000 J
75 Mcal313,800,000 J
100 Mcal418,400,000 J
250 Mcal1,046,000,000 J
500 Mcal2,092,000,000 J
1000 Mcal4,184,000,000 J

About the units

Megacalories (Mcal)
Megacalories, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
Joules (J)
Joules (watt-seconds), a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).

Formula version 0.1.0Reviewed