Convert Kiloelectronvolts to Calories

Enter the energy in kiloelectronvolts below to get the value converted to calories.

Results in Calories:
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1 keV = 3.8293E-17 cal

How to Convert Kiloelectronvolts to Calories

To convert a kiloelectronvolt measurement to a calorie measurement, multiply the energy by the conversion ratio. One kiloelectronvolt is equal to 3.8293E-17 calories, so use this simple formula to convert:

calories = kiloelectronvolts × 3.8293E-17

The energy in calories is equal to the kiloelectronvolts multiplied by 3.8293E-17.

For example, here's how to convert 5 kiloelectronvolts to calories using the formula above.
5 keV = (5 × 3.8293E-17) = 1.9146E-16 cal

Kiloelectronvolts and calories are both units used to measure energy. Keep reading to learn more about each unit of measure.


Kiloelectronvolts can be abbreviated as keV, for example 1 kiloelectronvolt can be written as 1 keV.


One calorie is equal to the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius.

When measuring the energy content in foods, the large calorie, or kilocalorie is used, but it's often still just called a "calorie." When both the calorie and large calorie are used in the same context it is common to refer to the calorie as a "small calorie."

Calories can be abbreviated as cal, for example 1 calorie can be written as 1 cal.

Kiloelectronvolt Measurements and Equivalent Calorie Conversions

Common kiloelectronvolt values converted to the equivalent calorie value
Kiloelectronvolts Calories
1 keV 0.000000000000000038293 cal
2 keV 0.000000000000000076586 cal
3 keV 0.00000000000000011488 cal
4 keV 0.00000000000000015317 cal
5 keV 0.00000000000000019146 cal
6 keV 0.00000000000000022976 cal
7 keV 0.00000000000000026805 cal
8 keV 0.00000000000000030634 cal
9 keV 0.00000000000000034464 cal
10 keV 0.00000000000000038293 cal
11 keV 0.00000000000000042122 cal
12 keV 0.00000000000000045952 cal
13 keV 0.00000000000000049781 cal
14 keV 0.0000000000000005361 cal
15 keV 0.00000000000000057439 cal
16 keV 0.00000000000000061269 cal
17 keV 0.00000000000000065098 cal
18 keV 0.00000000000000068927 cal
19 keV 0.00000000000000072757 cal
20 keV 0.00000000000000076586 cal
21 keV 0.00000000000000080415 cal
22 keV 0.00000000000000084244 cal
23 keV 0.00000000000000088074 cal
24 keV 0.00000000000000091903 cal
25 keV 0.00000000000000095732 cal
26 keV 0.00000000000000099562 cal
27 keV 0.0000000000000010339 cal
28 keV 0.0000000000000010722 cal
29 keV 0.0000000000000011105 cal
30 keV 0.0000000000000011488 cal
31 keV 0.0000000000000011871 cal
32 keV 0.0000000000000012254 cal
33 keV 0.0000000000000012637 cal
34 keV 0.000000000000001302 cal
35 keV 0.0000000000000013403 cal
36 keV 0.0000000000000013785 cal
37 keV 0.0000000000000014168 cal
38 keV 0.0000000000000014551 cal
39 keV 0.0000000000000014934 cal
40 keV 0.0000000000000015317 cal

More Kiloelectronvolt Energy Conversions

Convert to Joules
1 keV is equal to 1.6022E-16 joules
Convert to Kilojoules
1 keV is equal to 1.6022E-19 kilojoules
Convert to Megajoules
1 keV is equal to 1.6022E-22 megajoules
Convert to Gigajoules
1 keV is equal to 1.6022E-25 gigajoules
Convert to Kilocalories
1 keV is equal to 3.8293E-20 kilocalories
Convert to Megacalories
1 keV is equal to 3.8293E-23 megacalories
Watts x Time
Convert to Watt-hours
1 keV is equal to 4.4505E-20 watt-hours
Convert to Kilowatt-hours
1 keV is equal to 4.4505E-23 kilowatt-hours
Convert to Megawatt-hours
1 keV is equal to 4.4505E-26 megawatt-hours
Convert to Watt-seconds
1 keV is equal to 1.6022E-16 watt-seconds
Thermal Units
Convert to British Thermal Units
1 keV is equal to 1.5186E-19 british thermal units
Convert to Million BTU
1 keV is equal to 1.5186E-25 million BTU
Convert to Therms
1 keV is equal to 1.5186E-24 therms
Convert to Quads
1 keV is equal to 1.5186E-34 quads
Convert to Electronvolts
1 keV is equal to 1,000 electronvolts
Convert to Megaelectronvolts
1 keV is equal to 0.001 megaelectronvolts