Convert megajoules to Wh

Megajoules to watt hours. Enter a value to convert, or use the megajoules to Wh chart further down the page.

1 MJ = 277.7777778 Wh

1 megajoule equals 277.7777778 watt hours. Going the other way, 1 watt hour = 0.0036 megajoules.

How to convert megajoules to Wh

To convert megajoules to watt hours, multiply the megajoule value by 277.7777778. You can also divide by 0.0036 to get the same answer.

Wh = MJ × 277.7777778

Convert 15 MJ to watt hours:

15 MJ = 4,166.666667 Wh

Use this megajoules to Wh table for quick reference without typing anything.

The megajoule (MJ) is a unit of energy equal to 1000000 joules.

A watt hour is exactly 3,600 joules — the energy used by a one-watt device in one hour. Battery capacity is rated in watt hours.

How many Wh are in a megajoule?

1 megajoules equals 277.7777778 Wh. Going the other way, 1 Wh is 0.0036 megajoules.

How do you convert megajoules to Wh?

To convert megajoules to watt hours, multiply the megajoule value by 277.7777778. You can also divide by 0.0036 to get the same answer.

What is 10 megajoules in Wh?

10 megajoules equals 2,777.777778 Wh. The conversion chart on this page lists the other values people look up most often.