How many fathom [ancient] in 1 zettameter?
The answer is 5.4674685620558E+20.
We assume you are converting between fathom [ancient] and zettametre.
You can view more details on each measurement unit:
fathom [ancient] or
zettameter
The SI base unit for length is the metre.
1 metre is equal to 0.54674685620558 fathom [ancient], or 1.0E-21 zettameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between fathoms and zettameters.
Type in your own numbers in the form to convert the units!

The SI prefix "zetta" represents a factor of
10^{21}, or in exponential notation, 1E21.

So 1 zettametre = 10^{21} metre.

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