100 Calories (thermochemical) to Joules

100 cal = 418.4 J

Calculation: J = 100 cal × 4.184 = 418.4 J

Calorie (thermochemical) to Joule Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How much energy is 100 cal?

100 cal (418.4 J) is comparable to the kinetic energy of a baseball pitch.

What does 100 cal look like?

Comparable to the kinetic energy of a baseball pitch
100 cal (418.4 J) is comparable to the kinetic energy of a baseball pitch.

How to Convert Calorie (thermochemical) to Joule

1 calorie (thermochemical) = 4.184 Joules exact

Joule = Calorie (thermochemical) × 4.184

Example: 100 cal × 4.184 = 418.4 J

Reverse Conversion

To convert Joules back to calories (thermochemical):

  • Remember, 1 joule equals 0.239006 calories (thermochemical).
  • To convert 418.4 J to cal, multiply 418.4 x 0.239006, resulting in 100 cal.

exact This conversion factor is exact by international definition.

100 cal is also equal to:

  • 0.4184 kilojoule
  • 0.00011622 kilowatt hour
  • 0.1 calorie (nutritional)
  • 0.39657 Btu
  • 0.11622 watt hour

Frequently Asked Questions

How much is 100 calories (thermochemical) in Joules?

100 calories (thermochemical) equals 418.4 Joules. This is calculated by multiplying 100 by the conversion factor 4.184.

What does 100 calories (thermochemical) look like in Joules?

100 calories (thermochemical) equals 418.4 Joules, a conversion used in nutrition calculations, electrical energy billing, and thermal engineering.

How do you calculate 100 calories (thermochemical) to Joules?

Multiply 100 by the conversion factor 4.184. The calculation is 100 × 4.184 = 418.4 Joules. This factor is defined by international measurement standards.

Share This Calculation

100 calories (thermochemical) = 418.4 Joules
100 calories (thermochemical) = 418.4 Joules — conversion chart

For general conversions between calories (thermochemical) and Joules, see the calories (thermochemical) to Joules converter.

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 cal_IT = 4.1868 J by definition (BIPM/ITS-90). Last reviewed: April 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.