UnitFlip
Saved
Energy

Convert calories to kcal

1 calorie (thermochemical) equals 0.001 kilocalories. Enter a value below to convert instantly.

1 cal
0.001 kcal

Multiply the number of calories (thermochemical) by 0.001 to get kilocalories. 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 kilocalorie to calorie (thermochemical) →

Formula

Multiply the number of calories (thermochemical) by 0.001 to get kilocalories.

Step by step

  1. Start with 1 cal.
  2. Multiply by the conversion factor 0.001.
  3. 1 × 0.001 = 0.001 kcal.

Calories (thermochemical) to Kilocalories conversion table

Calories (thermochemical) (cal) Kilocalories (kcal)
1 0.001
2 0.002
5 0.005
10 0.01
20 0.02
50 0.05
100 0.1
500 0.5
1,000 1

Convert Calorie (thermochemical) to other energy units

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

  • Joule J 4.184
  • Kilojoule kJ 0.004184
  • Megajoule MJ 0.000004184
  • Gigajoule GJ 4.184e-9
  • Millijoule mJ 4,184
  • Microjoule µJ 4,184,000
  • Nanojoule nJ 4,184,000,000
  • Attojoule aJ 4.184e+18
  • Erg erg 41,840,000
  • Kilocalorie kcal 0.001
  • Calorie (IT) cal(IT) 0.99933123
  • Kilocalorie (IT) kcal(IT) 0.00099933123
  • Megacalorie Mcal 0.000001
  • Watt-hour Wh 0.0011622222
  • Kilowatt-hour kWh 0.0000011622222
  • Megawatt-hour MWh 1.1622222e-9
  • Gigawatt-hour GWh 1.1622222e-12
  • Watt-second W·s 4.184
  • Kilowatt-second kW·s 0.004184
  • Horsepower-hour hp·h 0.0000015585657
  • British Thermal Unit BTU 0.0039656668
  • BTU (thermochemical) BTU(th) 0.0039683207
  • MBTU (thousand BTU) MBTU 0.0000039656668
  • MMBTU (million BTU) MMBTU 3.9656668e-9
  • Therm (US) thm (US) 3.9666137e-8
  • Therm (EC) thm (EC) 3.9656512e-8
  • Ton-hour (refrigeration) ton·h 3.3047224e-7
  • Foot-pound ft·lbf 3.08596
  • Inch-pound in·lbf 37.03152
  • Foot-poundal ft·pdl 99.287828
  • Kilogram-force Meter kgf·m 0.42664926
  • Gram-force Centimeter gf·cm 42,664.926
  • Gram-force Meter gf·m 426.64926
  • Kilogram-force Centimeter kgf·cm 42.664926
  • Ounce-force Inch ozf·in 592.50433
  • Horsepower-hour (metric) PS·h 0.0000015801825
  • Electronvolt eV 2.6114474e+19
  • Kiloelectronvolt keV 2.6114474e+16
  • Megaelectronvolt MeV 26,114,474,000,000
  • Gigaelectronvolt GeV 26,114,474,000
  • Hartree Eh 9.5968922e+17
  • Rydberg Ry 1.9193784e+18
  • Ton of TNT tTNT 1e-9
  • Kiloton of TNT ktTNT 1e-12
  • Megaton of TNT MtTNT 1e-15
  • Tonne of Oil Equivalent toe 9.9933123e-11
  • Barrel of Oil Equivalent bboe 6.8389891e-10
  • Gigaton of TNT GtTNT 1e-18
  • Fuel Oil Equivalent (kiloliter) FOE (kL) 1.0408574e-10
  • Fuel Oil Equivalent (US barrel) FOE (bbl) 6.5548212e-10

About the calorie (thermochemical)

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

About the kilocalorie

The kilocalorie (kcal) is a Metric unit of energy. The 'Calorie' printed on nutrition labels — 1,000 thermochemical calories.

Where this conversion is used

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

Related conversions

Frequently asked questions

How many kilocalories are in a calorie (thermochemical)?

One calorie (thermochemical) equals 0.001 kilocalories.

How do you convert calories (thermochemical) to kilocalories?

Multiply the number of calories (thermochemical) by 0.001 to get kilocalories.

What is 1 kilocalorie in calories (thermochemical)?

One kilocalorie equals 1,000 calories (thermochemical).

When would I convert calories (thermochemical) to kilocalories?

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.