Feet (ft)	Astronomical Units (AU)
1 ft	2.0375e-12 AU
2 ft	4.0749e-12 AU
5 ft	1.0187e-11 AU
10 ft	2.0375e-11 AU
25 ft	5.0937e-11 AU
50 ft	1.0187e-10 AU
100 ft	2.0375e-10 AU
250 ft	5.0937e-10 AU
500 ft	1.0187e-9 AU
1000 ft	2.0375e-9 AU

Convert Feet to Astronomical Units

Convert feet to astronomical units (ft to AU) with our instant calculator. 1 ft = 0 AU. Includes exact formula and reference tables.

How to Convert Feet to Astronomical Units (ft to AU)

1 Foot (ft) is equal to 0 Astronomical Units (AU). Multiply the foot value by 2.037462155e-12

Quick Answer 1 ft = 0 AU

Formula AU = ft × 2.037462155e-12

Inverse Factor 1 AU = 490806662401.574768 ft

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 Feet (ft): Foot (ft) is a unit in the Length & Distance measurement category. It is a standard everyday unit of length & distance measurement. Relative to the length & distance base unit, 1 ft equals 0.3048 Meters (m).

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).

Need to convert in the opposite direction? Visit our Convert Astronomical Units to Feet (AU to ft) calculator (1 AU = 490806662401.574768 ft).

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

Convert 5 Feet to Astronomical Units: Applying the formula (AU = ft × 2.037462155e-12): starting with 5 ft, multiply the foot value by 2.037462155e-12 to get 0 AU.
Convert 10 Feet to Astronomical Units: Applying the formula (AU = ft × 2.037462155e-12): starting with 10 ft, multiply the foot value by 2.037462155e-12 to get 0 AU.
Convert 50 Feet to Astronomical Units: Applying the formula (AU = ft × 2.037462155e-12): starting with 50 ft, multiply the foot value by 2.037462155e-12 to get 0 AU.

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 feet to astronomical units.

How many astronomical units are in 1 foot?

There are 0 astronomical units (AU) in 1 foot (ft). Conversely, 1 astronomical unit equals 490806662401.574768 feet.

How do you convert feet to astronomical units?

To convert feet (ft) to astronomical units (AU), use the formula: AU = ft × 2.037462155e-12. Multiply the foot value by 2.037462155e-12. For example, 10 ft equals 0 AU.

How do I convert back from astronomical units to feet?

To convert in the reverse direction from astronomical units (AU) to feet (ft), use the inverse formula: ft = AU × 490806662400. Multiply the astronomical unit value by 490806662400 (1 AU = 490806662401.574768 ft).

What is the difference between foot (ft) and astronomical unit (AU)?

Both foot and astronomical unit measure length & distance. Foot (ft) is a unit in the Length & Distance measurement category. It is a standard everyday unit of length & distance measurement. Relative to the length & distance base unit, 1 ft equals 0.3048 Meters (m). 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).

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).