Convert kilocalories to watt-hours
1 kcal = 1.16222222222 Wh — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1.162 222 222 22Wh
As a fraction: 523/450
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1 kcal = 1.16222222222 Wh
Show this value in all 39 energy & work units
- Petajoules PJ 4.184e-12
- Terajoules TJ 4.184e-9
- Gigajoules GJ 0.000 004 184
- Megajoules MJ 0.004 184
- Kilojoules kJ 4.184
- Joules J 4184
- Millijoules mJ 4 184 000
- Microjoules µJ 4 184 000 000
- Nanojoules nJ 4 184 000 000 000
- Watt-hours Wh 1.162 222 222 22
- Kilowatt-hours kWh 0.001 162 222 222 22
- Megawatt-hours MWh 0.000 001 162 222 222 22
- Gigawatt-hours GWh 1.16222222222e-9
- Terawatt-hours TWh 1.16222222222e-12
- Calorie (thermochemical)s cal 1000
- Kilocalories kcal 1
- Calorie (IT)s cal (IT) 999.331 231 489
- Kilocalorie (IT)s kcal (IT) 0.999 331 231 489
- British thermal units BTU 3.965 666 831 39
- BTU (thermochemical)s BTU (th) 3.968 321 714 8
- Million BTUs MMBTU 0.000 003 965 666 831 39
- Therm (US)s thm 0.000 039 666 137 026 4
- Therm (EC)s thm (EC) 0.000 039 656 662 774 3
- Electronvolts eV 2.61144739675e+22
- Kiloelectronvolts keV 2.61144739675e+19
- Megaelectronvolts MeV 2.61144739675e+16
- Gigaelectronvolts GeV 26 114 473 967 500
- Teraelectronvolts TeV 26 114 473 967.5
- Ergs erg 41 840 000 000
- Foot-pounds ft·lbf 3085.960 032 58
- Inch-pounds in·lbf 37 031.520 390 9
- Foot-poundals ft·pdl 99 287.827 931 3
- Horsepower-hours hp·h 0.001 558 565 673 02
- Tonne of TNTs t TNT 0.000 001
- Kiloton of TNTs kt TNT 1e-9
- Megaton of TNTs Mt TNT 1e-12
- Hartrees Eₕ 9.59689217281e+20
- Rydbergs Ry 1.91937843456e+21
- Quads quad 3.96566683139e-15
Every row is Kilocalorie (kcal) converted through the joule, in exact rational arithmetic.
How to convert kilocalories to watt-hours
Multiply the number of kilocalories by 1.16222222222 to get watt-hours.
Kilocalorie: The Calorie on food labels — 1000 small calories.
Kilocalorie to Watt-hour conversion table
| Kilocalories (kcal) | Watt-hours (Wh) |
|---|---|
| 1 kcal | 1.162 222 2 |
| 2 kcal | 2.324 444 4 |
| 3 kcal | 3.486 666 7 |
| 5 kcal | 5.811 111 1 |
| 10 kcal | 11.622 222 |
| 20 kcal | 23.244 444 |
| 25 kcal | 29.055 556 |
| 50 kcal | 58.111 111 |
| 100 kcal | 116.222 22 |
| 250 kcal | 290.555 56 |
| 500 kcal | 581.111 11 |
| 1000 kcal | 1162.2222 |
Watt-hour to Kilocalorie conversion table
| Watt-hours (Wh) | Kilocalories (kcal) |
|---|---|
| 1 Wh | 0.860 420 65 |
| 2 Wh | 1.720 841 3 |
| 3 Wh | 2.581 262 |
| 5 Wh | 4.302 103 3 |
| 10 Wh | 8.604 206 5 |
| 20 Wh | 17.208 413 |
| 25 Wh | 21.510 516 |
| 50 Wh | 43.021 033 |
| 100 Wh | 86.042 065 |
| 250 Wh | 215.105 16 |
| 500 Wh | 430.210 33 |
| 1000 Wh | 860.420 65 |
Frequently asked
How many watt-hours are in a kilocalorie?
One kilocalorie equals 1.162222222 watt-hours (kcal → Wh). That figure is exact, not rounded.
How do you convert kilocalories to watt-hours?
Multiply the number of kilocalories by 1.16222222222 to get watt-hours.
What is 1 Wh in kilocalories?
One watt-hour is 0.8604206501 kilocalories.
What is 10 kcal in Wh?
10 kcal = 11.622 222 Wh.
What exactly is a kilocalorie?
The Calorie on food labels — 1000 small calories.