Astronomical Units (AU)	Fathoms (ftm)
1 AU	81801110400.3 ftm
2 AU	163602220801 ftm
5 AU	409005552001 ftm
10 AU	818011104003 ftm
25 AU	2045027760010 ftm
50 AU	4090055520010 ftm
100 AU	8180111040030 ftm
250 AU	20450277600100 ftm
500 AU	40900555200100 ftm
1000 AU	81801110400300 ftm

Convert Astronomical Units to Fathoms

Convert astronomical units to fathoms (AU to ftm) with our instant calculator. 1 AU = 81801110400.262466 ftm. Includes exact formula and reference tables.

How to Convert Astronomical Units to Fathoms (AU to ftm)

1 Astronomical Unit (AU) is equal to 81801110400.262466 Fathoms (ftm). Multiply the astronomical unit value by 81801110400

Quick Answer 1 AU = 81801110400.262466 ftm

Formula ftm = AU × 81801110400

Inverse Factor 1 ftm = 0 AU

Unit Definitions & Metrology Context

The standard SI base unit of length is the meter (m), defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second.

About Astronomical Units (AU): Astronomical Unit (AU) is a unit in the Length & Distance measurement category. It is widely used in earth-sun distance (solar system). Relative to the length & distance base unit, 1 AU equals 149597870700 Meters (m).

About Fathoms (ftm): Fathom (ftm) is a unit in the Length & Distance measurement category. It is widely used in 6 feet (nautical depth). Relative to the length & distance base unit, 1 ftm equals 1.8288 Meters (m).

Need to convert in the opposite direction? Visit our Convert Fathoms to Astronomical Units (ftm to AU) calculator (1 ftm = 0 AU).

Step-by-Step Worked Examples (AU to ftm)

Convert 5 Astronomical Units to Fathoms: Applying the formula (ftm = AU × 81801110400): starting with 5 AU, multiply the astronomical unit value by 81801110400 to get 409005552001.3123 ftm.
Convert 10 Astronomical Units to Fathoms: Applying the formula (ftm = AU × 81801110400): starting with 10 AU, multiply the astronomical unit value by 81801110400 to get 818011104002.6246 ftm.
Convert 50 Astronomical Units to Fathoms: Applying the formula (ftm = AU × 81801110400): starting with 50 AU, multiply the astronomical unit value by 81801110400 to get 4090055520013.1235 ftm.

Popular Length & Distance Conversions

Kilometer ⇄ Mile

Multiply kilometers by ~0.621371 to get miles, or divide miles by 0.621371 to get kilometers.

Inch ⇄ Centimeter

1 inch is legally and scientifically defined as exactly 2.54 centimeters.

Foot ⇄ Meter

1 foot is defined as exactly 0.3048 meters (12 inches).

Mile ⇄ Nautical Mile

1 nautical mile is exactly 1,852 meters (~1.15078 statute miles).

Frequently Asked Questions

Verified answers and formulas for converting astronomical units to fathoms.

How many fathoms are in 1 astronomical unit?

There are 81801110400.262466 fathoms (ftm) in 1 astronomical unit (AU). Conversely, 1 fathom equals 0 astronomical units.

How do you convert astronomical units to fathoms?

To convert astronomical units (AU) to fathoms (ftm), use the formula: ftm = AU × 81801110400. Multiply the astronomical unit value by 81801110400. For example, 10 AU equals 818011104002.6246 ftm.

How do I convert back from fathoms to astronomical units?

To convert in the reverse direction from fathoms (ftm) to astronomical units (AU), use the inverse formula: AU = ftm × 1.222477293e-11. Multiply the fathom value by 1.222477293e-11 (1 ftm = 0 AU).

What is the difference between astronomical unit (AU) and fathom (ftm)?

Both astronomical unit and fathom measure length & distance. Astronomical Unit (AU) is a unit in the Length & Distance measurement category. It is widely used in earth-sun distance (solar system). Relative to the length & distance base unit, 1 AU equals 149597870700 Meters (m). Fathom (ftm) is a unit in the Length & Distance measurement category. It is widely used in 6 feet (nautical depth). Relative to the length & distance base unit, 1 ftm equals 1.8288 Meters (m).

How many miles are in a kilometer?

There are approximately 0.621371 miles in 1 kilometer. To convert kilometers to miles quickly in your head, multiply by 6 and divide by 10 (or multiply by 0.6).