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Astronomical Unit to Femtometer Converter

Convert astronomical units (au) to femtometers (fm). 1 au = 1.495978707 × 10²⁶ fm.

1 au = 1.495978707 × 10²⁶ fm

Femtometer to Astronomical Unit converter

How to convert astronomical units to femtometers

1 astronomical unit is equal to 1.495978707 × 10²⁶ femtometers, and 1 femtometer is equal to 6.684587122 × 10⁻²⁷ astronomical units. To convert, multiply by the conversion factor:

femtometers = astronomical units × 1.495978707 × 10²⁶
femtometers = astronomical units ÷ 6.684587122 × 10⁻²⁷

Example: convert 1 au to fm: 1 × 1.495978707 × 10²⁶ = 1.495978707 × 10²⁶ fm.

Astronomical Unit to Femtometer conversion table

Astronomical Unit (au)Femtometer (fm)
0.01 au1.495978707 × 10²⁴ fm
0.1 au1.495978707 × 10²⁵ fm
1 au1.495978707 × 10²⁶ fm
2 au2.991957414 × 10²⁶ fm
3 au4.487936121 × 10²⁶ fm
5 au7.479893535 × 10²⁶ fm
10 au1.495978707 × 10²⁷ fm
20 au2.991957414 × 10²⁷ fm
50 au7.479893535 × 10²⁷ fm
100 au1.495978707 × 10²⁸ fm
250 au3.739946767 × 10²⁸ fm
500 au7.479893535 × 10²⁸ fm
1,000 au1.495978707 × 10²⁹ fm

About the astronomical unit

The astronomical unit is exactly 149,597,870,700 m, roughly the average distance from Earth to the Sun. It's used for distances within the solar system.

Symbol: au · 1 au = 149,597,870,700 m · Category: Astronomical

About the femtometer

A femtometer is 10⁻¹⁵ meters, the scale of atomic nuclei. A proton has a radius of about 0.84 fm.

Symbol: fm · 1 fm = 1 × 10⁻¹⁵ m · Category: Metric (SI)

Frequently asked questions

How many femtometers are in a astronomical unit?

There are 1.495978707 × 10²⁶ femtometers in 1 astronomical unit (au).

How many astronomical units are in a femtometer?

1 femtometer (fm) equals 6.684587122 × 10⁻²⁷ astronomical units.

How do I convert astronomical units to femtometers?

Multiply the length in astronomical units by 1.495978707 × 10²⁶. For example, 1 au × 1.495978707 × 10²⁶ = 1.495978707 × 10²⁶ fm.

How do I convert femtometers to astronomical units?

Divide the length in femtometers by 1.495978707 × 10²⁶, or multiply it by 6.684587122 × 10⁻²⁷. You can also use the Femtometer to Astronomical Unit converter.