⚡ Calorie to Joule Converter
Free online tool to convert Calorie (cal) to Joule (J). Enter a value and get instant, accurate results.
Enter a value above to see the result
Calorie to Joule Conversion Table
| Calorie (cal) | Joule (J) |
|---|---|
| 1 cal | 4.184 J |
| 100 cal | 418.4 J |
| 500 cal | 2092 J |
| 1000 cal | 4184 J |
| 2000 cal | 8368 J |
| 3500 cal | 14644 J |
Conversion Formula
Key relationships: 1 kWh = 3,600,000 J = 3,600 kJ ≈ 3,412 BTU 1 kcal = 4,184 J = 4.184 kJ (food Calories use kcal) 1 BTU ≈ 1,055 J • 1 cal = 4.184 J
About Calorie to Joule Conversions
Need to convert Calorie to Joule? This free online tool delivers the exact result instantly. Enter your cal value and read the answer in J.
The conversion factor is: 1 cal = 4.184 J. To convert manually, multiply your value by 4.184. As a quick example: 10 cal = 41.84 J.
For reference: this page provides a cal-to-J conversion table covering common values, the exact mathematical formula, and frequently asked questions.
Frequently Asked Questions
How do I convert Calorie to Joule?
Multiply your Calorie value by 4.184 to get Joule. For example: 10 cal × 4.184 = 41.84 J. You can also use the converter above for instant results.
How many Joule are in 1 Calorie?
There are 4.184 J in exactly 1 cal. This is the direct conversion factor between these two units.
Is Calorie larger or smaller than Joule?
One Calorie is larger than one Joule. Specifically, 1 cal = 4.184 J, so your number increases when converting from cal to J.
When would I use Joule instead of Calorie?
Use J in the context that requires it. Joules and kJ for science, kWh for electricity bills, kcal for nutrition, BTU for US heating and cooling equipment.
Related Energy Conversions
Reference Charts
Joules to Calories Conversion Chart
Quick-reference chart converting joules (J) to calories (cal). Covers 1–100,000 joules — for chemistry, nutrition science, physics experiments, and food energy calculations.
Calories to Joules Conversion Chart
Quick-reference chart converting calories (cal) and kilocalories (kcal) to joules (J). Covers 1 cal to 5,000 kcal — for nutrition, chemistry, and physics applications.
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All conversion results are provided for general informational purposes only. Our formulas use internationally recognized conversion factors; however, rounding may affect precision. Do not rely on these results for professional, medical, legal, or engineering decisions without independent verification. Read our full disclaimer.