| Did you mean to convert | joule | to | calorie [15 °C] calorie [I.T.] calorie [nutritional] calorie [thermochemical] |
How many joule in 1 Cal? The answer is 4.1858. We assume you are converting between joule and calorie [15 °C]. You can view more details on each measurement unit: joule or Cal The SI derived unit for energy is the joule. 1 joule is equal to 0.23890295761862 Cal. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between joules and calories. Type in your own numbers in the form to convert the units!
1 joule to Cal = 0.2389 Cal
5 joule to Cal = 1.19451 Cal
10 joule to Cal = 2.38903 Cal
20 joule to Cal = 4.77806 Cal
30 joule to Cal = 7.16709 Cal
40 joule to Cal = 9.55612 Cal
50 joule to Cal = 11.94515 Cal
75 joule to Cal = 17.91772 Cal
100 joule to Cal = 23.8903 Cal
You can do the reverse unit conversion from Cal to joule, or enter any two units below:
The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).
15 °C calorie: the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.
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