Quectojoule is 1e-30 joule units.
Quectojoules to Yoctojoules Converter — qJ to yJ
Convert Quectojoule (qJ) to Yoctojoule (yJ) using the exact conversion factor (1 quectojoule = 0.000001 yoctojoule). See the formula, worked examples, and conversion table.
Quectojoules to Yoctojoules converter
Converter
Energy Converter
Convert joules, calories, kilowatt-hours, BTU, electronvolts, therms, and mechanical work units.
Context values
Some unit families need one extra value for a physically accurate result.
Yoctojoule is 1e-24 joule units.
Result = input x 1e-30 / 1e-24.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Quectojoules to Yoctojoules
Quectojoule and Yoctojoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Quectojoule is 1e-30 joule units, and yoctojoule is 1e-24 joule units.
Formula
yoctojoules = quectojoules × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 quectojoule equals 1e-30 base units, and 1 yoctojoule equals 1e-24 base units, so dividing one by the other gives the direct quectojoule-to-yoctojoule factor of 0.000001.
Simple example
1 qJ × 0.000001 = 0.000001 yJ
1 quectojoule = 0.000001 yoctojoules.
Real-world example
100 qJ × 0.000001 = 0.0001 yJ
100 quectojoules = 0.0001 yoctojoules.
Conversion table
| Quectojoule (qJ) | Yoctojoule (yJ) |
|---|---|
| 1 qJ | 0.000001 yJ |
| 10 qJ | 0.00001 yJ |
| 100 qJ | 0.0001 yJ |
| 500 qJ | 0.0005 yJ |
| 1,000 qJ | 0.001 yJ |
| 2,000 qJ | 0.002 yJ |
Reverse conversion: Yoctojoule to Quectojoule
0.000001 yJ × 1000000 = 1 qJ
0.000001 yoctojoules = 1 quectojoules.
quectojoules = yoctojoules × 1000000
For a page dedicated to this direction, see Yoctojoule to Quectojoule.
Understanding the Quectojoule (qJ)
Quectojoule is 1e-30 joule units.
Understanding the Yoctojoule (yJ)
Yoctojoule is 1e-24 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many yoctojoules are in 1 quectojoule?
1 quectojoule equals 0.000001 yoctojoules, using the exact defined conversion factor rather than an estimate.
How do I convert quectojoule to yoctojoule?
Multiply the quectojoule value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert yoctojoule back to quectojoule?
Use the reverse factor: 1 yoctojoule equals 1,000,000 quectojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a quectojoule?
Quectojoule (qJ) is a unit of energy.
What is a yoctojoule?
Yoctojoule (yJ) is a unit of energy.
Is the quectojoule to yoctojoule conversion exact?
Yes. Both quectojoule and yoctojoule are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 used above is exact to as many digits as you choose to display.