Convert 1 Zeptojoule to Joule (1 zJ to J)
Looking to convert 1 zeptojoule (zJ) to joule (J)? This page provides the accurate result and a detailed explanation of how the conversion is done. Use this information to understand the relationship between Zeptojoule and Joule and how to calculate conversions manually or using online tools.

Looking to convert 1 zeptojoule (zJ) to joule (J)? This page provides the accurate result and a detailed explanation of how the conversion is done. Use this information to understand the relationship between Zeptojoule and Joule and how to calculate conversions manually or using online tools.
What is Zeptojoule to Joule Conversion?
Zeptojoule (zJ) and joule (J) are both units used to measure energy, but they serve different purposes depending on the scale of the measurement. If you ever need to convert zeptojoule to joule, knowing the exact conversion formula is essential.
ZJ to j Conversion Formula:
One Zeptojoule is equal to 1e-21 Joule.
Formula: 1 zJ = 1e-21 J
By using this conversion factor, you can easily convert any energy from zeptojoule to joule with precision.
Convert 1 Zeptojoule to Joule
To convert 1 zeptojoule to joule, multiply the value by 1e-21 since:
1 zeptojoule = 1e-21 joule
So:
1 × 1e-21 = 1e-21
Result: 1 zeptojoule = 1e-21 joule
Reverse Conversion
Need the reverse result? You can also convert joule back to zeptojoule by dividing 1e-21:
1e-21 joule ÷ 1e-21 = 1 zeptojoule
For more, visit: Joule to Zeptojoule
Explore Related Conversion Tool
This page focuses specifically on converting 1 Zeptojoule to Joule. If you're looking to convert a different value, you can use our general conversion tool:
Frequently Asked Questions
What is 1 zeptojoule in joule?
1 zeptojoule is equal to 1e-21 joule.
How do I convert zeptojoule to joule?
Multiply the value in zeptojoule by 1e-21 to get the equivalent in joule.