Energy
Browse Energy conversions1 kilocalorie = 4.184 kilojoule
This result has a permanent link you can bookmark or share. Report a problem with this conversion.
Formula Summary
Result: 1 kilocalorie = 4.184 kilojoule
Formula: (1 x 4184) / 1000
Rounding: Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
Real World Context
4.184 kilojoule is approximately:
- about 1.16 watt-hours
Unit Story
Kilocalorie
A kilocalorie is the food-label Calorie. That capital-C Calorie is why food energy numbers look familiar on nutrition labels.
How This Conversion Works
Kilocalorie and kilojoule are both used for energy conversions. This page converts 1 kilocalorie into 4.184 kilojoule using the formula shown below.
Use this result for quick checks, comparisons, and everyday reference. For work that depends on exact precision, review the rounding setting and the assumption note before using the number.
The precision controls let you switch between a shorter result, the standard readable result, and scientific notation when the value is very large or very small.
Unit Notes
- 1 kilocalorie (kcal) equals 4184 joule.
- 1 kilojoule (kJ) equals 1000 joule.
Questions
How do you convert kilocalorie to kilojoule?
This page converts kilocalorie to kilojoule using this formula: (1 x 4184) / 1000.
What is 1 kilocalorie in kilojoule?
1 kilocalorie equals 4.184 kilojoule.
How many decimals does this converter show?
Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision. The precision buttons can also show a shorter result or scientific notation.
Equivalent Values
Nearby Values
Full Details
- Formula
- (1 x 4184) / 1000
- Rounding
- Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
- Assumption
- Energy units use SI definitions. Calorie is the thermochemical calorie at 4.184 joules. BTU is the International Table BTU.
