Astronomical Unit to Hectometer Converter

Length Converter

31 units available

Decimals:

From

To

1,495,978,707

1 AU = 1,495,978,707 hm

Formula:

hm = AU × 1.495979e+9

With your value: 1 AU = 1,495,978,707 hm

How big is that?

Everyday references on a logarithmic scale, all expressed in astronomical unit so you can sanity-check the result.

Olympic pool (1/3.0e+9 your value)3.34e-10 AU

Football pitch (length) (1/1.4e+9 your value)7.02e-10 AU

Eiffel Tower (1/4.5e+8 your value)2.21e-9 AU

Burj Khalifa (1/1.8e+8 your value)5.53e-9 AU

Marathon (1/3.5e+6 your value)2.82e-7 AU

Your value1.00 AU

Other Astronomical Unit to Hectometer conversions

2 AU to hm 3 AU to hm 4 AU to hm 5 AU to hm 6 AU to hm 7 AU to hm 8 AU to hm

Astronomical Unit to Hectometer Conversion Table

Astronomical Unit (AU)	Hectometer (hm)
0.5	747,989,353.5
1	1,495,978,707
2	2,991,957,414
5	7,479,893,535
10	14,959,787,070
15	22,439,680,605
20	29,919,574,140
25	37,399,467,675
50	74,798,935,350
100	149,597,870,700
250	373,994,676,750
500	747,989,353,500
1000	1.495979e+12

Hectometer to Astronomical Unit Conversion Table

Hectometer (hm)	Astronomical Unit (AU)
0.5	3.342294e-10
1	6.684587e-10
2	1.336917e-9
5	3.342294e-9
10	6.684587e-9
15	1.002688e-8
20	1.336917e-8
25	1.671147e-8
50	3.342294e-8
100	6.684587e-8
250	1.671147e-7
500	3.342294e-7
1000	6.684587e-7

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Astronomical Unit (AU)

Length

Exact conversion

The astronomical unit is exactly 149 597 870 700 m (IAU Resolution B2, 2012).

Source: IAU Resolution B2 (2012) — definition of the astronomical unit; IAU B2 (2015) nominal values

International Astronomical Union · Reviewed 2026-07-01

Hectometer (hm)

Length

Exact conversion

Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Astronomical Unit to Hectometer

To convert from Astronomical Unit (AU) to Hectometer (hm), multiply the value by 1,495,978,707.

Formula: hm = AU × 1.495979e+9

Reverse: AU = hm × 6.684587e-10

Step-by-Step Example

Start with your value in Astronomical Unit. For example: 5 AU
Multiply by the conversion factor: 5 x 1,495,978,707
The result is: 7,479,893,535 hm

About Astronomical Unit

The astronomical unit (AU) is defined as exactly 149,597,870,700 metres, close to the mean Earth–Sun distance. It is the natural yardstick for the Solar System.

Common uses: planetary science, orbital mechanics, astronomy.

About Hectometer

The hectometer (hm) is a unit of distance and length. One hectometer equals 100 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: length calculations, engineering and science, education.

Frequently Asked Questions

How many Hectometer are in 1 Astronomical Unit?

There are exactly 1,495,978,707 Hectometer in 1 Astronomical Unit. This means the conversion factor from Astronomical Unit to Hectometer is 1,495,978,707.

What is the formula to convert Astronomical Unit to Hectometer?

The formula to convert Astronomical Unit to Hectometer is: hm = AU × 1.495979e+9. For example, to convert 10 Astronomical Unit to Hectometer, you would multiply 10 by 1,495,978,707.

What is a Astronomical Unit?