Convert calorie (thermochemical)s to kilojoules
1 cal = 0.004184 kJ — 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 4.184e-15
- Terajoules TJ 4.184e-12
- Gigajoules GJ 4.184e-9
- Megajoules MJ 0.000 004 184
- Kilojoules kJ 0.004 184
- Joules J 4.184
- Millijoules mJ 4184
- Microjoules µJ 4 184 000
- Nanojoules nJ 4 184 000 000
- Watt-hours Wh 0.001 162 222 222 22
- Kilowatt-hours kWh 0.000 001 162 222 222 22
- Megawatt-hours MWh 1.16222222222e-9
- Gigawatt-hours GWh 1.16222222222e-12
- Terawatt-hours TWh 1.16222222222e-15
- Calorie (thermochemical)s cal 1
- Kilocalories kcal 0.001
- Calorie (IT)s cal (IT) 0.999 331 231 489
- Kilocalorie (IT)s kcal (IT) 0.000 999 331 231 489
- British thermal units BTU 0.003 965 666 831 39
- BTU (thermochemical)s BTU (th) 0.003 968 321 714 8
- Million BTUs MMBTU 3.96566683139e-9
- Therm (US)s thm 3.96661370264e-8
- Therm (EC)s thm (EC) 3.96566627743e-8
- Electronvolts eV 2.61144739675e+19
- Kiloelectronvolts keV 2.61144739675e+16
- Megaelectronvolts MeV 26 114 473 967 500
- Gigaelectronvolts GeV 26 114 473 967.5
- Teraelectronvolts TeV 26 114 473.9675
- Ergs erg 41 840 000
- Foot-pounds ft·lbf 3.085 960 032 58
- Inch-pounds in·lbf 37.031 520 390 9
- Foot-poundals ft·pdl 99.287 827 931 3
- Horsepower-hours hp·h 0.000 001 558 565 673 02
- Tonne of TNTs t TNT 1e-9
- Kiloton of TNTs kt TNT 1e-12
- Megaton of TNTs Mt TNT 1e-15
- Hartrees Eₕ 9.59689217281e+17
- Rydbergs Ry 1.91937843456e+18
- Quads quad 3.96566683139e-18
Every row is Calorie (thermochemical) (cal) converted through the joule, in exact rational arithmetic.
How to convert calorie (thermochemical)s to kilojoules
Multiply the number of calorie (thermochemical)s by 0.004184 to get kilojoules.
The exact factor is 0.004184 — as a fraction, 523/125000.
Calorie (thermochemical): Exactly 4.184 J. The "small" calorie.
Calorie (thermochemical) to Kilojoule conversion table
| Calorie (thermochemical)s (cal) | Kilojoules (kJ) |
|---|---|
| 1 cal | 0.004 184 |
| 2 cal | 0.008 368 |
| 3 cal | 0.012 552 |
| 5 cal | 0.020 92 |
| 10 cal | 0.041 84 |
| 20 cal | 0.083 68 |
| 25 cal | 0.1046 |
| 50 cal | 0.2092 |
| 100 cal | 0.4184 |
| 250 cal | 1.046 |
| 500 cal | 2.092 |
| 1000 cal | 4.184 |
Kilojoule to Calorie (thermochemical) conversion table
| Kilojoules (kJ) | Calorie (thermochemical)s (cal) |
|---|---|
| 1 kJ | 239.005 74 |
| 2 kJ | 478.011 47 |
| 3 kJ | 717.017 21 |
| 5 kJ | 1195.0287 |
| 10 kJ | 2390.0574 |
| 20 kJ | 4780.1147 |
| 25 kJ | 5975.1434 |
| 50 kJ | 11 950.287 |
| 100 kJ | 23 900.574 |
| 250 kJ | 59 751.434 |
| 500 kJ | 119 502.87 |
| 1000 kJ | 239 005.74 |
Frequently asked
How many kilojoules are in a calorie (thermochemical)?
One calorie (thermochemical) equals 0.004184 kilojoules (cal → kJ). That figure is exact, not rounded.
How do you convert calorie (thermochemical)s to kilojoules?
Multiply the number of calorie (thermochemical)s by 0.004184 to get kilojoules.
What is 1 kJ in calorie (thermochemical)s?
One kilojoule is 239.0057361 calorie (thermochemical)s.
What is 10 cal in kJ?
10 cal = 0.041 84 kJ.
What exactly is a calorie (thermochemical)?
Exactly 4.184 J. The "small" calorie.