Joule to Millijoule

Joule to Millijoule Calculator

Convert energy from Joules (J) to Millijoules (mJ)

How to Convert Microjoules to Joules

A millijoule is a smaller unit of energy, where “milli-” indicates one-thousandth (10-3) of a joule, the standard SI unit of energy. 1 joule (J) = 1,000 millijoules (mJ), so multiply joules by 1,000 to convert to millijoules.

Conversion Formula

J = ยตJ ร— 0.001
J = Energy in joules
ยตJ = Energy in microjoules

Quick Trick: 1 Microjoule = 0.001 Joules!

Let’s Solve One Together

Imagine you have an energy measurement:

  • We measured: 5,000 microjoules

Here’s how we figure it out:

1. Take our formula: J = ยตJ ร— 0.001

2. Put in 5,000 microjoules

3. J = 5,000 ร— 0.001

Answer: 5 J

Definitions of Key Terms

Microjoule (ยตJ)

A microjoule (ยตJ) is a unit of energy that is one-millionth of a joule. It is commonly used to measure small amounts of energy in various applications, particularly in electronics and physics.

Joule (J)

The joule is the standard unit of energy in the International System of Units (SI). It represents the energy transferred when a force of one newton moves an object one meter. Joules are widely used in physics and engineering to measure energy, work, and heat.

Joules to Millijoules Conversion Table (J to mJ)

Joule [J] Millijoule [mJ]
1 J 1000 mJ
10 J 10000 mJ
100 J 100000 mJ
500 J 500000 mJ
1000 J 1000000 mJ
5000 J 5000000 mJ
10000 J 10000000 mJ
50000 J 50000000 mJ
100000 J 100000000 mJ

Author

  • Manish Kumar

    Manish holds a B.Tech in Electrical and Electronics Engineering (EEE) and an M.Tech in Power Systems, with over 10 years of experience in Metro Rail Systems, specializing in advanced rail infrastructure. He is also a NASM-certified fitness and nutrition coach with more than a decade of experience in weightlifting and fat loss coaching. With expertise in gym-based training, lifting techniques, and biomechanics, Manish combines his technical mindset with his passion for fitness.

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