Convert 1 Kilocalories to Attojoule (1 kcal to aJ)
Looking to convert 1 kilocalories (kcal) to attojoule (aJ)? This page provides the accurate result and a detailed explanation of how the conversion is done. Use this information to understand the relationship between Kilocalories and Attojoule and how to calculate conversions manually or using online tools.

Looking to convert 1 kilocalories (kcal) to attojoule (aJ)? This page provides the accurate result and a detailed explanation of how the conversion is done. Use this information to understand the relationship between Kilocalories and Attojoule and how to calculate conversions manually or using online tools.
What is Kilocalories to Attojoule Conversion?
Kilocalories (kcal) and attojoule (aJ) 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 kilocalories to attojoule, knowing the exact conversion formula is essential.
Kcal to aj Conversion Formula:
One Kilocalories is equal to 4.184e+21 Attojoule.
Formula: 1 kcal = 4.184e+21 aJ
By using this conversion factor, you can easily convert any energy from kilocalories to attojoule with precision.
Convert 1 Kilocalories to Attojoule
To convert 1 kilocalories to attojoule, multiply the value by 4.184e+21 since:
1 kilocalories = 4.184e+21 attojoule
So:
1 × 4.184e+21 = 4.184e+21
Result: 1 kilocalories = 4.184e+21 attojoule
Reverse Conversion
Need the reverse result? You can also convert attojoule back to kilocalories by dividing 4.184e+21:
4.184e+21 attojoule ÷ 4.184e+21 = 1 kilocalories
For more, visit: Attojoule to Kilocalories
Explore Related Conversion Tool
This page focuses specifically on converting 1 Kilocalories to Attojoule. If you're looking to convert a different value, you can use our general conversion tool:
Frequently Asked Questions
What is 1 kilocalories in attojoule?
1 kilocalories is equal to 4.184e+21 attojoule.
How do I convert kilocalories to attojoule?
Multiply the value in kilocalories by 4.184e+21 to get the equivalent in attojoule.