Hashpower help

[BitGoon]

Stupid question from a Bitcoin neophyte regarding mining.i am trying to reconcile the amount of hashpower being used in the bitcoin network and I keep seeing terahash per second ( TH/s) and exahash per second (EX/s) used in a way that seems interchangeabley.. my understanding is that terahash represents 1 trillion and exahash represents 1 quintillion.. but I cannot reconcile the quoted numbers.. one website says today’s network hashpower is 120m terhashes per second while another says the number is 120 exahashes per second.. unless I am an idiot, those are not the same number.. can anyone help me understand?

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[bob123]

1 exa = 1.000 peta = 1.000.000 tera

So, 120 million tera hashes are indeed 120 exa hashes.

Tera = 10¹²
Peta = 10¹⁵
Exa = 10¹⁸

[BitMaxz]

To understand more check these images below.





Commonly use are MH/s, GH/s, TH/s

You can read the wiki page about prefixes and how hashrate is measured. You can read the link below.
- https://en.bitcoinwiki.org/wiki/Hashrate

[Velkro]

BitMaxz provided great table with conversions.
You will read all you need there.
On a side note, hashing power is so huge, values used to describe it are hard to grasp as seen here.
It will only get worse coz there is no slowing down of adding hashing power on horizon.