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Megacalories to Watt-hours Converter

Convert megacalories (Mcal) to watt-hours (Wh), 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
1,162.22222222 Wh
joules (watt-seconds)
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
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 = 1,162.22222222 Wh

Show the working
  1. 1 Mcal = 1162.22222222 Wh
  2. 1 × 1162.22222222 = 1162.22222222 Wh

How to convert megacalories to watt-hours

1 Mcal = 1,162.22222222 Wh, so multiply by 1,162.22222222 to go from megacalories to watt-hours. Going the other way, 1 Wh = 0.000860420650096 Mcal.

Wh = Mcal × 1,162.22222222
Mcal = Wh × 0.000860420650096

Worked example:

1 Mcal = 1162.22222222 Wh
5 × 1162.22222222 = 5811.11111111 Wh

Megacalories to watt-hours table

MegacaloriesWatt-hours
1 Mcal1,162.22222222 Wh
2 Mcal2,324.44444444 Wh
3 Mcal3,486.66666667 Wh
4 Mcal4,648.88888889 Wh
5 Mcal5,811.11111111 Wh
6 Mcal6,973.33333333 Wh
7 Mcal8,135.55555556 Wh
8 Mcal9,297.77777778 Wh
9 Mcal10,460 Wh
10 Mcal11,622.2222222 Wh
15 Mcal17,433.3333333 Wh
20 Mcal23,244.4444444 Wh
25 Mcal29,055.5555556 Wh
30 Mcal34,866.6666667 Wh
40 Mcal46,488.8888889 Wh
50 Mcal58,111.1111111 Wh
75 Mcal87,166.6666667 Wh
100 Mcal116,222.222222 Wh
250 Mcal290,555.555556 Wh
500 Mcal581,111.111111 Wh
1000 Mcal1,162,222.22222 Wh

About the units

Megacalories (Mcal)
Megacalories, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed