Joule to Calorie (Thermochemical)

Convert joule to calorie (thermochemical) instantly. Type in either field — results update live.

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Energy Joule Calorie (Thermochemical)

1 joule = 0.2390057361 calories (thermochemical)

From

Format

Conversion table

Selected J values converted to cal (th) using the exact factor from this tool.

J	cal (th)
0.01	0.0023900574
0.1	0.0239005736
1	0.2390057361
2	0.4780114723
3	0.7170172084
5	1.1950286807
10	2.3900573614
20	4.7801147228
50	11.9502868069
100	23.9005736138
1,000	239.0057361377

How to convert

Exact conversion factors in both directions, plus a worked example.

1 J = 0.2390057361 cal (th)

1 cal (th) = 4.184 J

To convert joule to calorie (thermochemical), multiply by 0.2390057361.

To convert calorie (thermochemical) to joule, multiply by 4.184.

Example: convert 10 J to cal (th)

10 × 0.2390057361 = 2.3900573614 cal (th)

About these units

Short background on the units used in this conversion.

Joule (J)

The joule is the SI unit of energy — the work done when one newton moves an object one meter.

Joules quantify electricity bills (as kWh), food energy (as kcal), and scientific energy transfers.

Calorie (Thermochemical) (cal (th))

The thermochemical calorie is exactly 4.184 joules — the heat needed to raise 1 g of water by 1°C (thermochemical definition).

Thermochemical calories appear in chemistry and physics; do not confuse with food Calories (kilocalories).

Frequently asked questions

How many calories (thermochemical) are in one joule?

One joule equals 0.2390057361 calories (thermochemical). Multiply your joules value by 0.2390057361 to convert to calories (thermochemical).

What is the conversion formula?

cal (th) = J × 0.2390057361

The reverse is J = cal (th) × 4.184, using the same exact factors as this converter.

Is this Joule to Calorie (Thermochemical) converter private?

Yes. All calculations run locally in your browser. Nothing you type is sent to a server.

All joule conversions

Jump to any energy conversion starting from joule — including the reverse direction and every other unit in our dataset.

calorie (thermochemical) (cal (th)) → joule (J)

joule (J) → kilojoule (kJ)joule (J) → megajoule (MJ)joule (J) → gigajoule (GJ)joule (J) → kilowatt-hour (kW·h)joule (J) → watt-hour (W·h)joule (J) → calorie (nutritional / food calorie) (Cal)joule (J) → kilocalorie (it) (kcal (IT))joule (J) → kilocalorie (thermochemical) (kcal (th))joule (J) → calorie (it) (cal (IT))joule (J) → british thermal unit (it) (Btu (IT))joule (J) → british thermal unit (thermochemical) (Btu (th))joule (J) → foot-pound (ft·lbf)joule (J) → newton meter (N·m)joule (J) → horsepower hour (mechanical) (hp·h)joule (J) → horsepower (metric) hour (metric hp·h)joule (J) → millijoule (mJ)joule (J) → microjoule (µJ)joule (J) → nanojoule (nJ)joule (J) → attojoule (aJ)joule (J) → megaelectron-volt (MeV)joule (J) → kiloelectron-volt (keV)joule (J) → electron-volt (eV)joule (J) → erg joule (J) → gigawatt-hour (GW·h)joule (J) → megawatt-hour (MW·h)joule (J) → kilowatt-second (kW·s)joule (J) → watt-second (W·s)joule (J) → mega british thermal unit (it) (MBtu (IT))joule (J) → ton-hour (refrigeration) (ton·h)joule (J) → fuel oil equivalent @ kiloliter (kL oil eq)joule (J) → fuel oil equivalent @ barrel (us) (bbl oil eq)joule (J) → gigaton (tnt) (Gton)joule (J) → megaton (tnt) (Mton)joule (J) → kiloton (tnt) (kton)joule (J) → ton (explosives / tnt) (ton TNT)joule (J) → dyne centimeter (dyn·cm)joule (J) → gram-force meter (gf·m)joule (J) → gram-force centimeter (gf·cm)joule (J) → kilogram-force centimeter (kgf·cm)joule (J) → kilogram-force meter (kgf·m)joule (J) → kilopond meter (kp·m)joule (J) → pound-force foot (lbf·ft)joule (J) → pound-force inch (lbf·in)joule (J) → ounce-force inch (ozf·in)joule (J) → inch-pound (in·lbf)joule (J) → inch-ounce (in·ozf)joule (J) → poundal foot (pdl·ft)joule (J) → therm joule (J) → therm (ec)joule (J) → therm (us)joule (J) → hartree energy (Eh)joule (J) → rydberg constant (Ry)