Joule to Millijoule converter

1 joule = 1,000 millijoule1 millijoule = 0.001 joule


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The result of your conversion between joule and millijoule appears here

How to convert Joule to Millijoule

Multiply the value in joule by 1,000 to get the result in millijoule.

Example: 5 J × 1,000 = 5,000 mJ

Joule to Millijoule conversion table

JouleMillijoule
0.1 J100 mJ
0.5 J500 mJ
1 J1,000 mJ
2 J2,000 mJ
3 J3,000 mJ
4 J4,000 mJ
5 J5,000 mJ
10 J10,000 mJ
15 J15,000 mJ
20 J20,000 mJ
25 J25,000 mJ
50 J50,000 mJ
100 J100,000 mJ
500 J500,000 mJ
1,000 J1,000,000 mJ
MillijouleJoule
0.1 mJ0.0001 J
0.5 mJ0.0005 J
1 mJ0.001 J
2 mJ0.002 J
3 mJ0.003 J
4 mJ0.004 J
5 mJ0.005 J
10 mJ0.01 J
15 mJ0.015 J
20 mJ0.02 J
25 mJ0.025 J
50 mJ0.05 J
100 mJ0.1 J
500 mJ0.5 J
1,000 mJ1 J

Frequently asked questions

How much is 1 joule in millijoule?

1 joule = 1,000 millijoule.

How much is 1 millijoule in joule?

1 millijoule = 0.001 joule.

How do I convert joule to millijoule?

Multiply the value in joule by 1,000 to get the result in millijoule. Example: 5 J × 1,000 = 5,000 mJ.

About Joule

Joule (J) is a unit of energy.

1 joule = 0.2388459 calorie [I.T.] (cal)
1 calorie [I.T.] = 4.1868 joule

Use the converter above to convert joule into any other unit of energy.

About Millijoule

Millijoule (mJ) is a unit of energy.

1 millijoule = 0.001 joule (J)
1 millijoule = 0.0002388459 calorie [I.T.] (cal)
1 joule = 1,000 millijoule

The SI prefix milli- stands for 0.001, so 1 millijoule = 0.001 joule.

Use the converter above to convert millijoule into any other unit of energy.

Convert joule to other units

attojoule Board of Trade unit Btu Btu [thermochemical] calorie [I.T.] calorie [15° C] Calorie [nutritional] calorie [thermochemical] celsius heat unit centijoule cheval vapeur heure decijoule dekajoule dekawatt hour dekatherm electronvolt erg exajoule exawatt hour femtojoule foot pound foot poundal gallon [UK] of automotive gasoline gallon [U.S.] of automotive gasoline gallon [UK] of aviation gasoline gallon [U.S.] of aviation gasoline gallon [UK] of diesel oil gallon [U.S.] of diesel oil gallon [UK] of distilate #2 fuel oil gallon [U.S.] of distilate #2 fuel oil gallon [UK] of kerosene type jet fuel gallon [U.S.] of kerosene type jet fuel gallon [UK] of LPG gallon [U.S.] of LPG gallon [UK] of naphtha type jet fuel gallon [U.S.] of naphtha type jet fuel gallon [UK] of kerosene gallon [U.S.] of kerosene gallon [UK] of residual fuel oil gallon [U.S.] of residual fuel oil gigaelectronvolt gigacalorie [I.T.] gigacalorie [15° C] gigajoule gigawatt hour gram calorie hartree hectojoule hectowatt hour horsepower hour hundred cubic foot of natural gas inch ounce inch pound kilocalorie [15° C] kilocalorie [I.T.] kilocalorie [thermochemical] kiloelectronvolt kilogram calorie kilogram-force meter kilojoule kilopond meter kiloton [explosive] kilowatt hour liter atmosphere megaelectronvolt megacalorie [I.T.] megacalorie [15° C] megajoule megalerg megaton [explosive] megawatthour meter kilogram-force microjoule myriawatt hour nanojoule newton meter petajoule petawatthour pferdestärkenstunde picojoule Q unit quad teraelectronvolt terajoule terawatthour therm [Europe] therm [U.S. (uncommon)] thermie ton [explosive] tonne of coal equivalent tonne of oil equivalent watthour wattsecond yoctojoule yottajoule yottawatthour zeptojoule zettajoule zettawatthour