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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!
You can do the reverse unit conversion from zettameter to fathom [ancient], or enter any two units below:
The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.
So 1 zettametre = 1021 metre.
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