A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
Picojoules to Millijoules
Convert Picojoule (pJ) to Millijoule (mJ) instantly with an exact formula, conversion table, and FAQ.
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Convert picojoules (pJ) to millijoules (mJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A millijoule (mJ) is a metric-prefixed unit of energy equal to 10-3 joules, a fraction of a single joule, using the SI milli prefix.
mJ = pJ × 1.000000000e-09
Results update instantly for Picojoules to Millijoules conversions.
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Formula
mJ = pJ × 1.000000000e-09
pJ = mJ × 1000000000
Conversion table
| 1 pJ | 1.000000e-09 mJ |
| 5 pJ | 5.000000e-09 mJ |
| 10 pJ | 1.000000e-08 mJ |
| 20 pJ | 2.000000e-08 mJ |
| 50 pJ | 5.000000e-08 mJ |
| 100 pJ | 1.000000e-07 mJ |
| 500 pJ | 5.000000e-07 mJ |
| 1000 pJ | 0.000001 mJ |
Related conversions
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How the formula works
Both picojoule and millijoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in picojoules by 1.000000000e-09 to get millijoules. To reverse the conversion, multiply a millijoule value by 1000000000 to get back to picojoules.
Frequently asked questions
What is Picojoule (pJ)?
A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix.
What is Millijoule (mJ)?
A millijoule (mJ) is a metric-prefixed unit of energy equal to 10-3 joules, a fraction of a single joule, using the SI milli prefix.
How do I convert picojoules to millijoules?
Multiply the picojoule value by 1.000000000e-09 to get the equivalent in millijoules. For example, 5 pJ × 1.000000000e-09 = 5.000000e-09 mJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-09 is an exact, non-rounded value.
Can I convert millijoules back to picojoules?
Yes. Divide the millijoule value by 1.000000000e-09, or multiply it by 1000000000, to get picojoules.
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About converting picojoules to millijoules
A picojoule (pJ) is a metric-prefixed unit of energy equal to 10-12 joules, a fraction of a single joule, using the SI pico prefix. A millijoule (mJ) is a metric-prefixed unit of energy equal to 10-3 joules, a fraction of a single joule, using the SI milli prefix.
Use this calculator to move between picojoules and millijoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.