information about energy consumption

Energy consumption and body weight
How much energy does our body need?

Calculate the daily energy consumption of your body:

The human body has a basic energy consumption of about 4 kJ per kilogram of body weight and daily hour, regardless of whether you are at work or asleep. In order to calculate your basic energy consumption, you have to multiply your body weight by 4 and thereafter by 24 (for the hours of the day).

The amount of energy your body burns is largely determined by your professional activity, add therefore the value below which is relevant to you, in order to calculate your basic energy consumption.

Daily energy consumption according to professional activity *:

Activity Consumption
Seated work (office staff, pupil /student) 1000 - 2000 kJ
Light work (i.e. sales person, hairdresser) 2000 - 4000 kJ
Medium heavy work (i.e. carpenter, baker, housewife) 4000 - 6000 kJ
Heavy work (i.e. bricklayer, dancer) 6000 - 8000 kJ
Very heavy work (top athlete) over 8000 kJ

Even in your spear time you consume energy, you can calculate your average spare time energy consumption by adding the relevant value below to your basic and professional activity energy consumption.

Energy consumption (per hour) for various leisure activities *:

Jogging (9 km/h) 2400 kJ
Dancing 1500 kJ
Swimming (20 m/min) 1200 kJ
Cycling (15 km/h) 1200 kJ
Walking 600 kJ
Writing 120 kJ
Watching television 20 kJ

* Approximate value: 1 kcl = 4.18 kJ

The result represents your total energy consumption per day. The measure used hereby is the Kilo-Joule (kJ), in order to convert your result into the wider known kilo-calorie (kcal), you have to divide your result by 4 (exact conversion: 1 kcal = 4.18 kJ).