What is 7ly in Fathoms?

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What is 7 Light Years (7ly) in Fathoms (ftm)?

What is 7ly in ftm? Convert 7 Light Years (7ly) to Fathoms (ftm) and show formula, brief history on the units and quick maths for the conversion.

Enter Light Years to convert to Fathoms


Quick Reference for Converting Light Years to Fathoms

Formula
ftm = ly x 5.1730916447944E+15
Quick Rough Maths
To get the Fathoms, multiply the number of Light Years by 5173.1 trillion
Light Years (ly) in 1 Fathom
There are 0 Light Years in 1 Fathom
Fathoms (ftm) in 1 Light Year
There are 5.1730916447944E+15 Fathoms in 1 Light Year

Unit Information

Light Year
/lʌɪt jɪə,jəː/
Symbol: ly
Unit System: Astronomical System of Units

What is the Light Year?

The light year is a unit of length in the Astronomical system of units. It uses the symbol ly.

Often confused with a unit of time as it contains the word "year", it is actually defined by the International Astronomical Union (IAU) as the amount of distance that light travels in a vacuum in one Julian year (365.25 days).

Using the speed of light (299,792,458 m/s or 'c') and the Julian year (as apposed to the Gregorian year which is 365.2425 days), we can equivalate 1 light year as 9,460,730,472,580,800 metres or ≈ 9.46 trillion kilometres.

Fathom
/ˈfað(ə)m/
Symbol: ftm
Unit System: Imperial

What is the Fathom?

The fathom is a unit of length in the imperial unit system and uses the symbol ftm.

One fathom is equal to 6 feet or 1.8288m.

The phrase fathom derives from an old English derivative of a Viking / Danish word "favn" meaning emracing a pair of arms or a pair of oustretched hands.

The fathom is mostly used in the nautical world to describe depths of water.


Conversion Tables for Light Years (ly) to Fathoms (ftm)