Joules to kilocalories conversion

Joules (J) to kilocalories (kcal) energy conversion calculator and how to convert.

Joules to kcal conversion calculator
How to convert joules to kcal

Joules to kilocalories conversion calculator

Enter the energy in joules and press the Convert button:

kcal to joules conversion ►

How to convert from joules to kcal

Joules to thermochemical / food kilocalories

1 kcal_th = 4184 J

The energy in joules E_(J) is equal to the energy in kilocalories E_(kcal-th)divided by 4184:

E_(kcal) = E_(J) / 4184

Example

Convert 5000 joules to kilocalories.

E₍_kcal₎ = 5000 J / 4184 = 1.195 kcal

Joules to international kilocalories

1 kcal_IT = 4186.8 J

The energy in joules E_(J) is equal to the energy in international kilocalories E_(kcal-IT) divided by 4186.8:

E_(kcal-IT) = E_(J) / 4186.8

Example

Convert 5000 joules to kilocalories.

E_(kcal-IT) = 5000 J / 4186.8 = 1.194 kcal_IT

Joules to 15°C kilocalories

1 kcal₁₅ = 4185.5 J

The energy in joules E_(J) is equal to the energy in 15°C kilocalories E_(kcal15) divided by 4185.5:

E₍_kcal15₎ = E_(J) / 4185.5

Example

Convert 5000 joules to kilocalories.

E_(kcal15) = 5000 J / 4185.5 = 1.195 kcal₁₅

Joules to 20°C kilocalories

1 kcal₂₀ = 4182 J

The energy in joules E_(J) is equal to the energy in 20°C kilocalories E_(kcal20) divided by 4182:

E₍_kcal20₎ = E_(J) / 4182

Example

Convert 5000 joules to kilocalories.

E₍_kcal20₎ = 5000 J / 4182 = 1.196 kcal₂₀

kcal to joules conversion ►

Joules to kilocalories conversion