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 Quectojoules
Convert Picojoule (pJ) to Quectojoule (qJ) instantly with an exact formula, conversion table, and FAQ.
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Convert picojoules (pJ) to quectojoules (qJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A quectojoule (qJ) is a metric-prefixed unit of energy equal to 10-30 joules, a fraction of a single joule, using the SI quecto prefix.
qJ = pJ × 1.000000000e+18
Results update instantly for Picojoules to Quectojoules conversions.
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Formula
qJ = pJ × 1.000000000e+18
pJ = qJ × 1.000000000e-18
Conversion table
| 1 pJ | 1.000000e+18 qJ |
| 5 pJ | 5.000000e+18 qJ |
| 10 pJ | 1.000000e+19 qJ |
| 20 pJ | 2.000000e+19 qJ |
| 50 pJ | 5.000000e+19 qJ |
| 100 pJ | 1.000000e+20 qJ |
| 500 pJ | 5.000000e+20 qJ |
| 1000 pJ | 1.000000e+21 qJ |
Related conversions
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How the formula works
Both picojoule and quectojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in picojoules by 1.000000000e+18 to get quectojoules. To reverse the conversion, multiply a quectojoule value by 1.000000000e-18 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 Quectojoule (qJ)?
A quectojoule (qJ) is a metric-prefixed unit of energy equal to 10-30 joules, a fraction of a single joule, using the SI quecto prefix.
How do I convert picojoules to quectojoules?
Multiply the picojoule value by 1.000000000e+18 to get the equivalent in quectojoules. For example, 5 pJ × 1.000000000e+18 = 5.000000e+18 qJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+18 is an exact, non-rounded value.
Can I convert quectojoules back to picojoules?
Yes. Divide the quectojoule value by 1.000000000e+18, or multiply it by 1.000000000e-18, to get picojoules.
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About converting picojoules to quectojoules
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 quectojoule (qJ) is a metric-prefixed unit of energy equal to 10-30 joules, a fraction of a single joule, using the SI quecto prefix.
Use this calculator to move between picojoules and quectojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.