Dekameter to Astronomical Unit Converter

Length Converter

31 units available

Decimals:

From

To

6.684587e-11

1 dam = 6.684587e-11 AU

Formula:

AU = dam × 6.684587e-11

With your value: 1 dam = 6.684587e-11 AU

How big is that?

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

Adult stride (1/13 your value)0.0750 dam

Standard door height (1/5.0 your value)0.200 dam

Your value1.00 dam

London double-decker bus (1.1× your value)1.10 dam

Olympic pool (5.0× your value)5.00 dam

Football pitch (length) (11× your value)10.5 dam

Other Dekameter to Astronomical Unit conversions

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

Dekameter to Astronomical Unit Conversion Table

Dekameter (dam)	Astronomical Unit (AU)
0.5	3.342294e-11
1	6.684587e-11
2	1.336917e-10
5	3.342294e-10
10	6.684587e-10
15	1.002688e-9
20	1.336917e-9
25	1.671147e-9
50	3.342294e-9
100	6.684587e-9
250	1.671147e-8
500	3.342294e-8
1000	6.684587e-8

Astronomical Unit to Dekameter Conversion Table

Astronomical Unit (AU)	Dekameter (dam)
0.5	7,479,893,535
1	14,959,787,070
2	29,919,574,140
5	74,798,935,350
10	149,597,870,700
15	224,396,806,050
20	299,195,741,400
25	373,994,676,750
50	747,989,353,500
100	1.495979e+12
250	3.739947e+12
500	7.479894e+12
1000	1.495979e+13

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.

Dekameter (dam)

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

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

How to Convert Dekameter to Astronomical Unit

To convert from Dekameter (dam) to Astronomical Unit (AU), multiply the value by 6.684587e-11.

Formula: AU = dam × 6.684587e-11

Reverse: dam = AU × 1.495979e+10

Step-by-Step Example

Start with your value in Dekameter. For example: 5 dam
Multiply by the conversion factor: 5 x 6.684587e-11
The result is: 3.342294e-10 AU

About Dekameter

The dekameter (dam) is a unit of distance and length. One dekameter equals 10 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.

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.

Frequently Asked Questions

How many Astronomical Unit are in 1 Dekameter?

There are exactly 6.684587e-11 Astronomical Unit in 1 Dekameter. This means the conversion factor from Dekameter to Astronomical Unit is 6.684587e-11.

What is the formula to convert Dekameter to Astronomical Unit?

The formula to convert Dekameter to Astronomical Unit is: AU = dam × 6.684587e-11. For example, to convert 10 Dekameter to Astronomical Unit, you would multiply 10 by 6.684587e-11.

What is a Dekameter?