Calorie (International) (cal)
Convert Calorie (International) to Other Units
Interactive converter will be available when JavaScript loads
About the Calorie (International)
Unit Details
Quick Conversions
Reference Chart
Calorie (International) Reference Chart - Energy Conversions
Interactive conversion chart showing energy unit relationships. Compare 8 common units with precise calculations.
| Unit | Symbol | Equivalent to 1 aJ |
|---|---|---|
| AttojouleBase Unit | aJ | 1 |
| Btu (International) | Btu | 1.055E21 |
| Btu (Thermochemical) | Btu | 1.054E21 |
| Calorie (International) | cal | 4.187E18 |
| Calorie (Nutritional) | cal | 4.187E21 |
| Calorie (Thermochemical) | cal | 4.184E18 |
| Dyne-Centimeter | dyn cm | 1E11 |
| Electron Volt | eV | 0.16021 |
Quick Reference
About Energy
Convert between different units of energy
Conversion Accuracy
All conversions use official conversion factors and are calculated with maximum precision to ensure professional-grade accuracy.
Comparison Table
Calorie (International) Comparison Table
Compare Calorie (International) values with 6 other energy units. Quick reference for common conversion values.
| Calorie (International) (cal) | Attojoule (aJ) | Btu (International) (Btu) | Btu (Thermochemical) (Btu) | Calorie (Nutritional) (cal) | Calorie (Thermochemical) (cal) | Dyne-Centimeter (dyn cm) |
|---|---|---|---|---|---|---|
| 1 | 4.187E18 | 0.003968 | 0.003971 | 0.001 | 1.000669 | 4.187E7 |
| 5 | 2.093E19 | 0.019842 | 0.019855 | 0.005 | 5.003346 | 2.093E8 |
| 10 | 4.187E19 | 0.039683 | 0.03971 | 0.01 | 10.006692 | 4.187E8 |
| 25 | 1.047E20 | 0.099208 | 0.099274 | 0.025 | 25.01673 | 1.047E9 |
| 50 | 2.093E20 | 0.198416 | 0.198549 | 0.05 | 50.033461 | 2.093E9 |
| 100 | 4.187E20 | 0.396832 | 0.397098 | 0.1 | 100.066922 | 4.187E9 |
How to Use This Table
Find the value in Calorie (International) in the first column, then read across to see the equivalent values in other energy units.
Precision Note
All conversions are calculated using precise conversion factors with locale-appropriate number formatting for optimal readability.
About the Calorie (International)
The Calorie (International) (cal) is a unit of energy measurement. Use our converter above to convert Calorie (International) to any other energy unit instantly