A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto prefix.
Attojoules to Quectojoules
Convert Attojoule (aJ) to Quectojoule (qJ) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Energy calculator
Energy Converter
Convert attojoules (aJ) 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 = aJ × 1000000000000
Results update instantly for Attojoules to Quectojoules conversions.
Reserved above the conversion cards and below the converter.
Formula
qJ = aJ × 1000000000000
aJ = qJ × 1.000000000e-12
Conversion table
| 1 aJ | 1.000000e+12 qJ |
| 5 aJ | 5.000000e+12 qJ |
| 10 aJ | 1.000000e+13 qJ |
| 20 aJ | 2.000000e+13 qJ |
| 50 aJ | 5.000000e+13 qJ |
| 100 aJ | 1.000000e+14 qJ |
| 500 aJ | 5.000000e+14 qJ |
| 1000 aJ | 1.000000e+15 qJ |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both attojoule and quectojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attojoules by 1000000000000 to get quectojoules. To reverse the conversion, multiply a quectojoule value by 1.000000000e-12 to get back to attojoules.
Frequently asked questions
What is Attojoule (aJ)?
A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto 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 attojoules to quectojoules?
Multiply the attojoule value by 1000000000000 to get the equivalent in quectojoules. For example, 5 aJ × 1000000000000 = 5.000000e+12 qJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000000000000 is an exact, non-rounded value.
Can I convert quectojoules back to attojoules?
Yes. Divide the quectojoule value by 1000000000000, or multiply it by 1.000000000e-12, to get attojoules.
Reserved between the FAQ and the article so the page stays balanced.
About converting attojoules to quectojoules
A attojoule (aJ) is a metric-prefixed unit of energy equal to 10-18 joules, a fraction of a single joule, using the SI atto 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 attojoules 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.