Meter to Astronomical Unit Converter
Convert Meter (m) to Astronomical Unit (AU) instantly. 1 m = 6.684587e-12 AU.
Length Converter
31 units available
1 m = 6.684587e-12 AU
Formula:
AU = m × 6.684587e-12With your value: 1 m = 6.684587e-12 AU
How big is that?
Everyday references on a logarithmic scale, all expressed in meter so you can sanity-check the result.
Other Meter to Astronomical Unit conversions
Meter to Astronomical Unit Conversion Table
| Meter (m) | Astronomical Unit (AU) |
|---|---|
| 0.5 | 3.342294e-12 |
| 1 | 6.684587e-12 |
| 2 | 1.336917e-11 |
| 5 | 3.342294e-11 |
| 10 | 6.684587e-11 |
| 15 | 1.002688e-10 |
| 20 | 1.336917e-10 |
| 25 | 1.671147e-10 |
| 50 | 3.342294e-10 |
| 100 | 6.684587e-10 |
| 250 | 1.671147e-9 |
| 500 | 3.342294e-9 |
| 1000 | 6.684587e-9 |
Astronomical Unit to Meter Conversion Table
| Astronomical Unit (AU) | Meter (m) |
|---|---|
| 0.5 | 74,798,935,350 |
| 1 | 149,597,870,700 |
| 2 | 299,195,741,400 |
| 5 | 747,989,353,500 |
| 10 | 1.495979e+12 |
| 15 | 2.243968e+12 |
| 20 | 2.991957e+12 |
| 25 | 3.739947e+12 |
| 50 | 7.479894e+12 |
| 100 | 1.495979e+13 |
| 250 | 3.739947e+13 |
| 500 | 7.479894e+13 |
| 1000 | 1.495979e+14 |
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.
Meter (m)
Length
The metre is defined by taking the speed of light in vacuum to be exactly 299 792 458 m/s, with the second defined by the caesium frequency.
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
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 Meter to Astronomical Unit
To convert from Meter (m) to Astronomical Unit (AU), multiply the value by 6.684587e-12.
Formula: AU = m × 6.684587e-12
Reverse: m = AU × 1.495979e+11
Step-by-Step Example
- Start with your value in Meter. For example: 5 m
- Multiply by the conversion factor: 5 x 6.684587e-12
- The result is: 3.342294e-11 AU
About Meter
The meter is the base unit of length in the International System of Units (SI). It was originally defined as one ten-millionth of the distance from the equator to the North Pole.
Fun Fact: The meter was redefined in 1983 as the distance light travels in a vacuum in 1/299,792,458 of a second.
Common uses: construction, athletics, science.
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 Meter?
There are exactly 6.684587e-12 Astronomical Unit in 1 Meter. This means the conversion factor from Meter to Astronomical Unit is 6.684587e-12.
What is the formula to convert Meter to Astronomical Unit?
The formula to convert Meter to Astronomical Unit is: AU = m × 6.684587e-12. For example, to convert 10 Meter to Astronomical Unit, you would multiply 10 by 6.684587e-12.
What is a Meter?
The meter is the base unit of length in the International System of Units (SI). It was originally defined as one ten-millionth of the distance from the equator to the North Pole.
What is a 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.
What are the common uses of Meter?
The Meter is commonly used in construction, athletics, science.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Meter to Astronomical Unit converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/meter-to-astronomical_unit