Is 2000 Kilocalories the Average Human Need per Day?

[Piotrovskiy Yury]

Human power 97 watts?

2000 kilocalories is the average human need per day.

2000 kilocalories is 8373.6 kilojoules divided by 86,400 seconds in days = 97 watts.

 

[berkeman]

You calling me a light bulb!?

 

[phyzguy]

Summary:: 2000 kilocalories is the average human need per day.2000 kilocalories is 8373.6 kilojoules divided by 86,400 seconds in days = 97 watts.

Human power 97 watts?

2000 kilocalories is the average human need per day.

2000 kilocalories is 8373.6 kilojoules divided by 86,400 seconds in days = 97 watts.

Yes, that's about right. Did you have a question?

 

[Nugatory]

No way do you have more than one significat digit in this calculation so you might want to say "100 watts, give or take" instead of "97 watts", but other than that, yes, it's about right in order of magnitude terms... at least for the average human exerting themselves at an average level so that 2000 kcal/day is reasonable.

Don't expect that number to apply to an American football team, or anyone on the day that they run a marathon.