UnitFlip
Saved
Energy

Convert joules to calories

1 joule equals 0.23900574 calories (thermochemical). Enter a value below to convert instantly.

1 J
0.23900574 cal

Multiply the number of joules by 0.239005736138 to get calories (thermochemical). How this is calculated

Copy link puts your number after the #, which browsers never send to a server — but the link itself carries it, so anyone you send it to sees the value. Save keeps the unit pair in this browser only; clear it any time from your saved list.

Need the other direction? Convert calorie (thermochemical) to joule →

Formula

Multiply the number of joules by 0.239005736138 to get calories (thermochemical).

Step by step

  1. Start with 1 J.
  2. Multiply by the conversion factor 0.239005736138.
  3. 1 × 0.239005736138 = 0.23900574 cal.

Joules to Calories (thermochemical) conversion table

Joules (J) Calories (thermochemical) (cal)
1 0.23900574
2 0.47801147
5 1.1950287
10 2.3900574
20 4.7801147
50 11.950287
100 23.900574
500 119.50287
1,000 239.00574

Convert Joule to other energy units

1 J expressed in every other energy unit on this site.

  • Kilojoule kJ 0.001
  • Megajoule MJ 0.000001
  • Gigajoule GJ 1e-9
  • Millijoule mJ 1,000
  • Microjoule µJ 1,000,000
  • Nanojoule nJ 1,000,000,000
  • Attojoule aJ 1e+18
  • Erg erg 10,000,000
  • Calorie (thermochemical) cal 0.23900574
  • Kilocalorie kcal 0.00023900574
  • Calorie (IT) cal(IT) 0.2388459
  • Kilocalorie (IT) kcal(IT) 0.0002388459
  • Megacalorie Mcal 2.3900574e-7
  • Watt-hour Wh 0.00027777778
  • Kilowatt-hour kWh 2.7777778e-7
  • Megawatt-hour MWh 2.7777778e-10
  • Gigawatt-hour GWh 2.7777778e-13
  • Watt-second W·s 1
  • Kilowatt-second kW·s 0.001
  • Horsepower-hour hp·h 3.7250614e-7
  • British Thermal Unit BTU 0.00094781712
  • BTU (thermochemical) BTU(th) 0.00094845141
  • MBTU (thousand BTU) MBTU 9.4781712e-7
  • MMBTU (million BTU) MMBTU 9.4781712e-10
  • Therm (US) thm (US) 9.4804343e-9
  • Therm (EC) thm (EC) 9.4781339e-9
  • Ton-hour (refrigeration) ton·h 7.8984761e-8
  • Foot-pound ft·lbf 0.73756215
  • Inch-pound in·lbf 8.8507458
  • Foot-poundal ft·pdl 23.73036
  • Kilogram-force Meter kgf·m 0.10197162
  • Gram-force Centimeter gf·cm 10,197.162
  • Gram-force Meter gf·m 101.97162
  • Kilogram-force Centimeter kgf·cm 10.197162
  • Ounce-force Inch ozf·in 141.61193
  • Horsepower-hour (metric) PS·h 3.7767267e-7
  • Electronvolt eV 6.2415091e+18
  • Kiloelectronvolt keV 6.2415091e+15
  • Megaelectronvolt MeV 6,241,509,100,000
  • Gigaelectronvolt GeV 6,241,509,100
  • Hartree Eh 2.2937123e+17
  • Rydberg Ry 4.5874246e+17
  • Ton of TNT tTNT 2.3900574e-10
  • Kiloton of TNT ktTNT 2.3900574e-13
  • Megaton of TNT MtTNT 2.3900574e-16
  • Tonne of Oil Equivalent toe 2.388459e-11
  • Barrel of Oil Equivalent bboe 1.6345576e-10
  • Gigaton of TNT GtTNT 2.3900574e-19
  • Fuel Oil Equivalent (kiloliter) FOE (kL) 2.487709e-11
  • Fuel Oil Equivalent (US barrel) FOE (bbl) 1.5666399e-10

About the joule

The joule (J) is a SI unit of energy.

About the calorie (thermochemical)

The calorie (thermochemical) (cal) is a Metric unit of energy.

Where this conversion is used

Converting joules to calories (thermochemical) comes up when nutrition labels, electricity bills, heating, and physics.

Related conversions

Frequently asked questions

How many calories (thermochemical) are in a joule?

One joule equals 0.23900574 calories (thermochemical).

How do you convert joules to calories (thermochemical)?

Multiply the number of joules by 0.239005736138 to get calories (thermochemical).

What is 1 calorie (thermochemical) in joules?

One calorie (thermochemical) equals 4.184 joules.

When would I convert joules to calories (thermochemical)?

This conversion is common when nutrition labels, electricity bills, heating, and physics.

Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.