Joules to Megajoules Converter

Convert joules (J) to megajoules (MJ) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Result

Megajoules
1.000000e-6 MJ

How to use the joules to megajoules converter

  1. Enter the joules (J).
  2. The results update as you type, or press Calculate.
  3. Read the megajoules first, then the supporting figures below it.

Formula

Megajoules = joules × 1.000000e-06

Worked example

For example, with these inputs:

the calculator returns:

Joules to Megajoules table

JoulesMegajoules
1 J1.000000e-6 MJ
2 J2.000000e-6 MJ
5 J5.000000e-6 MJ
10 J1.000000e-5 MJ
20 J2.000000e-5 MJ
25 J2.500000e-5 MJ
50 J5.000000e-5 MJ
100 J1.000000e-4 MJ
250 J0.00025 MJ
500 J0.0005 MJ
1,000 J0.001 MJ

About this conversion

Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.

Frequently asked questions

How many megajoules are in one joule?

1 J = 1.000000e-6 MJ.

How do I convert J to MJ?

Megajoules = joules × 1.000000e-06.

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