Convert Calories (thermochemical) (cal) to Joules (J)
1 calorie (thermochemical) equals 4.184 Joules.
Calorie (thermochemical) to Joule Converter
How to Convert Calorie (thermochemical) to Joule
1 calorie (thermochemical) = 4.184 Joules exact
Joule = Calorie (thermochemical) × 4.184
Example: 1 cal × 4.184 = 4.184 J
Reverse Conversion
To convert Joules back to calories (thermochemical):
- Remember, 1 joule equals 0.239006 calories (thermochemical).
- To convert 4.184 J to cal, multiply
4.184 x 0.239006, resulting in1 cal.
exact This conversion factor is exact by international definition.
Common Calorie (thermochemical) to Joule Conversions
| Calorie (thermochemical) | Joule | Actions |
|---|---|---|
| 1 calorie (thermochemical) | 4.184 Joules | |
| 10 calories (thermochemical) | 41.84 Joules | |
| 100 calories (thermochemical) | 418.4 Joules |
| Calorie (thermochemical) | Joule | Actions |
|---|---|---|
| 500 calories (thermochemical) | 2092 Joules | |
| 1000 calories (thermochemical) | 4184 Joules | |
| 4.184 calories (thermochemical) | 17.5059 Joules |
Calories (thermochemical) to Joules Conversion Table
Reference table with common calories (thermochemical) to joules conversions. All values calculated with high precision.
Calories (thermochemical) to Joules Table
0.0001 to 12
Calories (thermochemical) to Joules Table
1 to 100000
Joules to Calories (thermochemical) Table
0.001 to 5
Joules to Calories (thermochemical) Table
10 to 1000000
Definition of Joule
- Definition
- SI unit of energy: 1 J = 1 N·m = 1 kg·m²·s⁻².
- Notes
- Used universally in physics, chemistry, and engineering.
- Sources
- BIPM — SI Brochure
About the Calorie (thermochemical)
Facts & Uses
- Exact convention: 1 calth = 4.184 J; 1 kcalth = 4184 J; common in thermochemistry and legacy calorimetry data.
- Older literature reports heat capacity and enthalpy changes in cal, kcal, or cal/mol·K; modern practice favors J, kJ, or J/mol·K.
- Closely related to the International Table calorie (calIT = 4.1868 J); conversions may matter in precise heat balances.
- Still appears in steam tables, reaction enthalpies, and process engineering archives that predate SI transitions.
Curiosities
- Origin concept: energy to raise 1 g of water by 1 °C under specified conditions (reference temperature matters).
- Multiple historical variants exist (e.g., mean calorie, 15 °C calorie), creating small but non-trivial differences.
- In SI, joule is preferred; calories persist mainly for historical continuity and nutrition contexts.
- Unit names can confuse: nutritional “Calorie” is actually kilocalorie (thermochemical), not calIT.
Sources
About the Joule
Facts & Uses
- SI unit of energy: 1 J = 1 N·m = 1 W·s = 1 C·V = 1 Pa·m³; ubiquitous in mechanics, thermodynamics, electromagnetism, and chemistry.
- Common engineering scales: kJ, MJ, GJ for fuels, heating/cooling loads, and process energy.
- Everyday intuition: lifting ~1 N through 1 m ≈ 1 J; a 10 Wh battery stores ≈ 36,000 J for devices/IoT.
- Key links: 1 kWh = 3.6 × 10⁶ J; 1 eV = 1.602176634×10⁻¹⁹ J (exact) via the fixed elementary charge.
Curiosities
- Joule heating (I²R) connects electrical losses to thermal energy in conductors and electronics.
- Although both use N·m, torque (vector, moment) and energy (scalar, work) are physically distinct.
- Compression/expansion work in gases is often expressed as Pa·m³ (= J), linking pressure–volume integrals to energy.
- Named for James P. Joule, who quantified the mechanical equivalent of heat, bridging thermal and mechanical domains.
Sources
Frequently Asked Questions
How many Joules are in one calorie (thermochemical)?
One calorie (thermochemical) equals 4.184 Joules. To convert, multiply the calorie (thermochemical) value by 4.184. For the reverse, divide the joule value by 4.184 (or multiply by 0.239006).
What is 10 calories (thermochemical) in Joules?
10 calories (thermochemical) = 41.84 Joules. This is one of the most commonly searched conversions for this pair.
How precise is the calorie (thermochemical)-to-joule conversion?
The factor 4.184 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.
Looking for the reverse? Convert Joule to Calorie (thermochemical)
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