Converting between calories and kilocalories is essential in physics, nutrition, electrical engineering, and heating calculations. Energy units bridge different domains: joules in physics, calories in nutrition, kilowatt-hours in electricity, and BTUs in heating.
40.99941 cal = 0.040999 kcal
40.99941 (forty) calorie(s) is equal to 0.040999 (zero) kilocalorie(s)
What is calorie?
The calorie (cal) equals 4.184 joules. It was originally defined as the energy needed to raise one gram of water by one degree Celsius. Small calories are used in chemistry and physics.
What is kilocalorie?
The kilocalorie (kcal), often called a food Calorie (with capital C), equals 1,000 calories or 4,184 joules. It is the standard unit for measuring the energy content of food and beverages in nutrition.
How to convert cal to kcal
To convert Calorie to Kilocalorie, multiply the value by 0.001.
40.99941 cal × 0.001 = 0.040999 kcal
Common Conversions
| cal | kcal (Kilocalorie) | Description |
|---|---|---|
| 1 cal | 0.001 kcal | 1 Calorie(s) = 0.001 Kilocalorie(s) |
| 2 cal | 0.002 kcal | 2 Calorie(s) = 0.002 Kilocalorie(s) |
| 5 cal | 0.005 kcal | 5 Calorie(s) = 0.005 Kilocalorie(s) |
| 10 cal | 0.01 kcal | 10 Calorie(s) = 0.01 Kilocalorie(s) |
| 25 cal | 0.025 kcal | 25 Calorie(s) = 0.025 Kilocalorie(s) |
| 50 cal | 0.05 kcal | 50 Calorie(s) = 0.05 Kilocalorie(s) |
| 100 cal | 0.1 kcal | 100 Calorie(s) = 0.1 Kilocalorie(s) |
| 250 cal | 0.25 kcal | 250 Calorie(s) = 0.25 Kilocalorie(s) |
| 500 cal | 0.5 kcal | 500 Calorie(s) = 0.5 Kilocalorie(s) |
| 1000 cal | 1 kcal | 1000 Calorie(s) = 1 Kilocalorie(s) |
| 2500 cal | 2.5 kcal | 2500 Calorie(s) = 2.5 Kilocalorie(s) |
| 5000 cal | 5 kcal | 5000 Calorie(s) = 5 Kilocalorie(s) |
| 10000 cal | 10 kcal | 10000 Calorie(s) = 10 Kilocalorie(s) |
Convert Calorie to other units
| cal | Unit | Description |
|---|---|---|
| 40.99941 cal | 171.541531 J | Joule |
| 40.99941 cal | 0.171542 kJ | Kilojoule |
| 40.99941 cal | 0.000172 MJ | Megajoule |
| 40.99941 cal | 0.040999 kcal | Kilocalorie |
| 40.99941 cal | 0.04765 Wh | Watt-hour |
| 40.99941 cal | 0.000048 kWh | Kilowatt-hour |
| 40.99941 cal | 0.16259 BTU | British thermal unit |