# Watthours to Megajoules calculator

To use the calculator, place your cursor in the desired unit field and write a number. If needed use the dot "." as the decimal separator.

Rounding:
Wh
MJ

## Watthours to Megajoules Conversion Table

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Selected rounding: none (You can change it above in the dropdown)

Wh MJ Wh MJ Wh MJ Wh MJ
1 0.0036 26 0.0936 51 0.1836 76 0.2736
2 0.0072 27 0.0972 52 0.1872 77 0.2772
3 0.0108 28 0.1008 53 0.1908 78 0.2808
4 0.0144 29 0.1044 54 0.1944 79 0.2844
5 0.018 30 0.108 55 0.198 80 0.288
6 0.0216 31 0.1116 56 0.2016 81 0.2916
7 0.0252 32 0.1152 57 0.2052 82 0.2952
8 0.0288 33 0.1188 58 0.2088 83 0.2988
9 0.0324 34 0.1224 59 0.2124 84 0.3024
10 0.036 35 0.126 60 0.216 85 0.306
11 0.0396 36 0.1296 61 0.2196 86 0.3096
12 0.0432 37 0.1332 62 0.2232 87 0.3132
13 0.0468 38 0.1368 63 0.2268 88 0.3168
14 0.0504 39 0.1404 64 0.2304 89 0.3204
15 0.054 40 0.144 65 0.234 90 0.324
16 0.0576 41 0.1476 66 0.2376 91 0.3276
17 0.0612 42 0.1512 67 0.2412 92 0.3312
18 0.0648 43 0.1548 68 0.2448 93 0.3348
19 0.0684 44 0.1584 69 0.2484 94 0.3384
20 0.072 45 0.162 70 0.252 95 0.342
21 0.0756 46 0.1656 71 0.2556 96 0.3456
22 0.0792 47 0.1692 72 0.2592 97 0.3492
23 0.0828 48 0.1728 73 0.2628 98 0.3528
24 0.0864 49 0.1764 74 0.2664 99 0.3564
25 0.09 50 0.18 75 0.27 100 0.36

• ##### Megajoule (1,000,000 J)
The megajoule (MJ) is equal to one million (106) joules, or approximately the kinetic energy of a one megagram (tonne) vehicle moving at 161 km/h. The energy required to heat 10 liters of liquid water at constant pressure from 0 °C (32 °F) to 100 °C (212 °F) is approximately 4.2 MJ. One kilowatt hour of electricity is 3.6 megajoules.
• ##### Watthour (3,600 J)
The watt hour (symbol Wh) is a unit of energy equal to 3.6 kilojoules. If energy is transmitted or used at a constant rate (power) over a period of time, the total energy in watt hours is equal to the power in watts multiplied by the time in hours. The kilowatt hour is commonly used as a billing unit for energy delivered to consumers by electric utilities.
Tags Watthours to Megajoules Wh to MJ Watthours Wh Megajoules MJ converter calculator conversion table