How many furlongs are in 1 AU?

One AU contains approximately 7.432 x 108 furlongs (about 743 million). Since 1 AU = 149,597,870,700 meters and 1 furlong = 201.168 meters, divide the former by the latter.

How far is 1 furlong in AU?

One furlong is approximately 1.345 x 10-9 AU, or about 1.3 billionths of an AU. A furlong is vanishingly small on the astronomical scale.

Is this conversion practical?

No. Furlongs are used in horse racing and some British road signs. AU measures planetary distances. These fields have no overlap whatsoever.

Astronomical Units to Furlongs (au to fur) Converter

1 au = 743,646,458.1842 fur

1 Astronomical Unit equals 743,646,458.1842 Furlongs (1 au = 743,646,458.1842 fur). Convert Astronomical Units to Furlongs with formula, table, and examples.

One astronomical unit equals approximately 7.432 x 10⁸ furlongs, or about 743 million furlongs. This conversion pairs the solar system distance unit with the horse racing and agricultural unit (220 yards / 201.168 m). The Kentucky Derby at 10 furlongs covers 0.00000000135 AU, illustrating the enormous scale difference.

How to Convert Astronomical Units to Furlongs

fur = au × 743,646,458.1842042208

Multiply the value in Astronomical Units by 743,646,458.1842042208

Take your value in Astronomical Units
Multiply by 743,646,458.1842042208
Read the result in Furlongs

Common Astronomical Units to Furlongs Conversions

Astronomical Units (au)	Furlongs (fur)	Status
1 × 10⁻⁹ au	0.7436 fur
1 × 10⁻⁸ au	7.4365 fur
1 × 10⁻⁷ au	74.3646 fur
0.000001 au	743.6465 fur
0.00001 au	7,436.4646 fur
0.0001 au	74,364.6458 fur
0.001 au	743,646.4582 fur
0.01 au	7,436,464.5818 fur
0.1 au	74,364,645.8184 fur
0.39 au	290,022,118.6918 fur
0.72 au	535,425,449.8926 fur
1 au	743,646,458.1842 fur
1.52 au	1,130,342,616.44 fur
5.2 au	3,866,961,582.5579 fur

Good to Know About Astronomical Units to Furlongs Conversion

The furlong survives in horse racing, while the AU thrives in planetary science. Both units are niche specialists in their own domains, making their combination one of the quirkiest pairings in unit conversion.

Astronomical Units to Furlongs: What You Need to Know

The Earth-Sun distance of 1 AU would be about 743 million Kentucky Derbys placed end to end. A furlong, the distance an ox could plough without rest, is incomprehensibly small compared to planetary orbits. This conversion exists only for mathematical completeness.

What is a Astronomical Unit? au

Exactly 149,597,870,700 meters by IAU 2012 definition. Roughly the average distance from the Earth to the Sun. Used for distances within our solar system.

Astronomical solar system distances astronomy planetary science

Learn more about Astronomical Unit →

What is a Furlong? fur

Exactly 660 feet or one-eighth of a mile (201.168 m). Originally the length of a plowed furrow. Still used in horse racing.

Imperial horse racing historical

Learn more about Furlong →

Going the other way? Use our Furlongs to Astronomical Units converter.

Astronomical Units to Furlongs FAQ

One AU contains approximately 7.432 x 10⁸ furlongs (about 743 million). Since 1 AU = 149,597,870,700 meters and 1 furlong = 201.168 meters, divide the former by the latter.
One furlong is approximately 1.345 x 10^-9 AU, or about 1.3 billionths of an AU. A furlong is vanishingly small on the astronomical scale.
No. Furlongs are used in horse racing and some British road signs. AU measures planetary distances. These fields have no overlap whatsoever.

Non-Frequently Asked Questions About Astronomical Units to Furlongs

Questions nobody should ask - but someone did.

The Earth-Sun distance is about 743 million furlongs. The Kentucky Derby is 10 furlongs. So about 74.3 million Kentucky Derbys fit between us and the Sun. That is a lot of horse races.