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