Millijoule to Joule Conversion

Convert between Millijoule and Joule quickly and accurately.

mJ
J

How to Convert Millijoule to Joule

Conversion Formula

1 mJ = 0.001 J
1 J = 1000 mJ

Example

Convert 15 mJ to J:

15 mJ = 15 × 0.001 J = 0.015 J

Unit Information

Learn about the energy units you're converting between

Millijoule

mJ

Definition

A Millijoule is a unit of Energy in the metric system, equal to one thousandth of the base unit. It is used for precision measurements and small quantities and provides precise measurements for applications requiring small scales accuracy.

History/Origin

The Millijoule was introduced as part of the metric system with the prefix "milli-" derived from Greek or Latin roots. It became important for measurements requiring precision measurements and small quantities and provides a standardized unit for small scales applications.

Current Use

The Millijoule is used in scientific research, industry, and technology for precision measurements and small quantities. It provides precise measurements for applications requiring thousandth-scale accuracy and is essential for small scales measurements in various fields.

Multiplier

0.001

Offset

0

Joule

J

Definition

The joule (symbol: J) is the SI base unit of energy, work, and heat. It is defined as the work done when a force of one newton moves an object one meter in the direction of the force. One joule equals one newton-meter or one watt-second.

History/Origin

The joule was named after James Prescott Joule (1818-1889), an English physicist who established the mechanical equivalent of heat. It was officially adopted as the SI unit of energy in 1948, replacing the calorie in scientific contexts.

Current Use

Joules are used universally in physics, engineering, and chemistry for measuring energy, work, and heat. Applications include electrical energy calculations, mechanical work, thermal energy, and energy efficiency measurements in all scientific and industrial fields.

Multiplier

1

Offset

0

Millijoule to Joule Conversion Table

Millijoule [mJ] Joule [J]
1 mJ 0.001 J
10 mJ 0.01 J
25 mJ 0.025 J
50 mJ 0.05 J
100 mJ 0.1 J
0 mJ 0E+0 J
-10 mJ -0.01 J
-40 mJ -0.04 J

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