Convert electronvolts to kilocalories
1 eV = 0.0000000000000000000000382929405832 kcal — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
Show this value in all 39 energy & work units
- Petajoules PJ 1.602176634e-34
- Terajoules TJ 1.602176634e-31
- Gigajoules GJ 1.602176634e-28
- Megajoules MJ 1.602176634e-25
- Kilojoules kJ 1.602176634e-22
- Joules J 1.602176634e-19
- Millijoules mJ 1.602176634e-16
- Microjoules µJ 1.602176634e-13
- Nanojoules nJ 1.602176634e-10
- Watt-hours Wh 4.45049065e-23
- Kilowatt-hours kWh 4.45049065e-26
- Megawatt-hours MWh 4.45049065e-29
- Gigawatt-hours GWh 4.45049065e-32
- Terawatt-hours TWh 4.45049065e-35
- Calorie (thermochemical)s cal 3.82929405832e-20
- Kilocalories kcal 3.82929405832e-23
- Calorie (IT)s cal (IT) 3.82673314703e-20
- Kilocalorie (IT)s kcal (IT) 3.82673314703e-23
- British thermal units BTU 1.51857044347e-22
- BTU (thermochemical)s BTU (th) 1.5195870764e-22
- Million BTUs MMBTU 1.51857044347e-28
- Therm (US)s thm 1.51893302832e-27
- Therm (EC)s thm (EC) 1.51857023134e-27
- Electronvolts eV 1
- Kiloelectronvolts keV 0.001
- Megaelectronvolts MeV 0.000 001
- Gigaelectronvolts GeV 1e-9
- Teraelectronvolts TeV 1e-12
- Ergs erg 1.602176634e-12
- Foot-pounds ft·lbf 1.18170484169e-19
- Inch-pounds in·lbf 1.41804581003e-18
- Foot-poundals ft·pdl 3.80202289561e-18
- Horsepower-hours hp·h 5.96820627119e-26
- Tonne of TNTs t TNT 3.82929405832e-29
- Kiloton of TNTs kt TNT 3.82929405832e-32
- Megaton of TNTs Mt TNT 3.82929405832e-35
- Hartrees Eₕ 0.036 749 322 175 7
- Rydbergs Ry 0.073 498 644 351 3
- Quads quad 1.51857044347e-37
Every row is Electronvolt (eV) converted through the joule, in exact rational arithmetic.
How to convert electronvolts to kilocalories
Multiply the number of electronvolts by 0.0000000000000000000000382929405832 to get kilocalories.
Electronvolt: Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.
Kilocalorie: The Calorie on food labels — 1000 small calories.
Electronvolt to Kilocalorie conversion table
| Electronvolts (eV) | Kilocalories (kcal) |
|---|---|
| 1 eV | 3.8292941e-23 |
| 2 eV | 7.6585881e-23 |
| 3 eV | 1.1487882e-22 |
| 5 eV | 1.914647e-22 |
| 10 eV | 3.8292941e-22 |
| 20 eV | 7.6585881e-22 |
| 25 eV | 9.5732351e-22 |
| 50 eV | 1.914647e-21 |
| 100 eV | 3.8292941e-21 |
| 250 eV | 9.5732351e-21 |
| 500 eV | 1.914647e-20 |
| 1000 eV | 3.8292941e-20 |
Kilocalorie to Electronvolt conversion table
| Kilocalories (kcal) | Electronvolts (eV) |
|---|---|
| 1 kcal | 2.6114474e+22 |
| 2 kcal | 5.2228948e+22 |
| 3 kcal | 7.8343422e+22 |
| 5 kcal | 1.3057237e+23 |
| 10 kcal | 2.6114474e+23 |
| 20 kcal | 5.2228948e+23 |
| 25 kcal | 6.5286185e+23 |
| 50 kcal | 1.3057237e+24 |
| 100 kcal | 2.6114474e+24 |
| 250 kcal | 6.5286185e+24 |
| 500 kcal | 1.3057237e+25 |
| 1000 kcal | 2.6114474e+25 |
Frequently asked
How many kilocalories are in a electronvolt?
One electronvolt equals 3.829294058e-23 kilocalories (eV → kcal). That figure is exact, not rounded.
How do you convert electronvolts to kilocalories?
Multiply the number of electronvolts by 0.0000000000000000000000382929405832 to get kilocalories.
What is 1 kcal in electronvolts?
One kilocalorie is 2.611447397e+22 electronvolts.
What is 10 eV in kcal?
10 eV = 3.8292941e-22 kcal.
What exactly is a electronvolt?
Exactly 1.602 176 634 × 10⁻¹⁹ J since the 2019 SI redefinition.
What exactly is a kilocalorie?
The Calorie on food labels — 1000 small calories.