Picojoule is 1e-12 joule units.
Picojoules to Microjoules Converter — pJ to uJ
Convert Picojoule (pJ) to Microjoule (uJ) using the exact conversion factor (1 picojoule = 0.000001 microjoule). See the formula, worked examples, and conversion table.
Picojoules to Microjoules 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.
Microjoule is 0.000001 joule units.
Result = input x 1e-12 / 1e-6.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picojoules to Microjoules
Picojoule and Microjoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Picojoule is 1e-12 joule units, and microjoule is 0.000001 joule units.
Formula
microjoules = picojoules × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 picojoule equals 1e-12 base units, and 1 microjoule equals 0.000001 base units, so dividing one by the other gives the direct picojoule-to-microjoule factor of 0.000001.
Simple example
1 pJ × 0.000001 = 0.000001 uJ
1 picojoule = 0.000001 microjoules.
Real-world example
100 pJ × 0.000001 = 0.0001 uJ
100 picojoules = 0.0001 microjoules.
Conversion table
| Picojoule (pJ) | Microjoule (uJ) |
|---|---|
| 1 pJ | 0.000001 uJ |
| 10 pJ | 0.00001 uJ |
| 100 pJ | 0.0001 uJ |
| 500 pJ | 0.0005 uJ |
| 1,000 pJ | 0.001 uJ |
| 2,000 pJ | 0.002 uJ |
Reverse conversion: Microjoule to Picojoule
0.000001 uJ × 1000000 = 1 pJ
0.000001 microjoules = 1 picojoule.
picojoules = microjoules × 1000000
For a page dedicated to this direction, see Microjoule to Picojoule.
Understanding the Picojoule (pJ)
Picojoule is 1e-12 joule units.
Understanding the Microjoule (uJ)
Microjoule is 0.000001 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many microjoules are in 1 picojoule?
1 picojoule equals 0.000001 microjoules, using the exact defined conversion factor rather than an estimate.
How do I convert picojoule to microjoule?
Multiply the picojoule value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert microjoule back to picojoule?
Use the reverse factor: 1 microjoule equals 1,000,000 picojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a picojoule?
Picojoule (pJ) is a unit of energy.
What is a microjoule?
Microjoule (uJ) is a unit of energy.
Is the picojoule to microjoule conversion exact?
Yes. Both picojoule and microjoule 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.