How to use
New Tools: Illumination of Earth by the Sun at the March equinox
Sunrise, Sunset, Day Length, Local Time around the World - over 200,000 cities around the World, e.g. Sunrise in NYC today, Local Time in Tokyo, Japan
Accuracy - number of significant decimal digits:
Displays link url to your conversion.
*International Steam Table Calorie (1956) (calIT) equals exactly 4.1868J
**Most widely used BTU definition based on International Steam Table Calorie (1956)
Joule - Energy Unit
Unit of energy in the International System Of Units (SI) is Joule. Joule is the derived unit. Joule formula: 1 J = 1 N · m = 1 kg · m2 / s2
One joule is the amount of energy required to perform the following actions (source:wikipedia.org)
1 cal = 4.1868J => N calories = N*4.1868 J
1 J = 0.238846 cal => N joules = N*0.238846 calories.
All our online converters are free to use. We try to keep our software free of bugs and errors but we do not take any responsibility for any problems caused through the use of these calculators and converters.