Energy Converter
Convert between different energy units instantly. Supports joules, kilojoules, megajoules, calories, kilocalories, BTU, and more.
Result
0.239006 cal
1 J = 0.239006 cal
Quick Conversions
Conversion Table
| Input | From | To | Result |
|---|---|---|---|
| 1 | J | kJ | 0.001 |
| 1 | J | MJ | 1e-6 |
| 1 | J | cal | 0.239006 |
| 1 | J | kcal | 0.000239 |
| 1 | J | BTU | 0.000948 |
Energy Converter - Complete Guide
Convert between all energy units including joules, kilojoules, megajoules, calories, kilocalories, British Thermal Units (BTU), and more. Perfect for physics, chemistry, nutrition, and engineering calculations.
Conversion Formula: Value × (From Unit Factor / To Unit Factor)
Use this formula to convert any energy unit to another. Select your units above and get instant results!
Common Energy Conversions
Frequently Asked Questions
What energy units are supported?
Our energy converter supports 8 units including SI units (J, kJ, MJ, GJ, TJ) and thermal units (cal, kcal, BTU).
What is the difference between a calorie and a joule?
1 calorie (cal) = 4.184 joules (J). Calories are commonly used in nutrition, while joules are the SI unit of energy used in physics and engineering.
What is a British Thermal Unit (BTU)?
A BTU is the amount of energy needed to heat one pound of water by one degree Fahrenheit. 1 BTU = 1055.06 joules. It is commonly used in heating and cooling systems.
What is the difference between a calorie and a kilocalorie?
1 kilocalorie (kcal) = 1000 calories (cal). In nutrition, "calories" on food labels actually refer to kilocalories (kcal).
How many joules are in a kilojoule?
1 kilojoule (kJ) = 1000 joules (J). This is a common unit used in nutrition and physics.
What is the relationship between joules and BTUs?
1 BTU = 1055.06 joules. This conversion is important for comparing energy content in different systems, such as natural gas and electricity.
Quick Conversion Tips
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