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Length
Distance, height, thickness and astronomical length.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result0.00000668459 au1 Mm = 0.00000668459 au
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Mm to au Converter
Convert megametre (Mm) to astronomical unit (au). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through metre
Enter a megametre value to calculate astronomical unit with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| quectometrefrom Mm | qm | 1e36 |
| rontometrefrom Mm | rm | 1e33 |
| yoctometrefrom Mm | ym | 1e30 |
| zeptometrefrom Mm | zm | 1e27 |
| attometrefrom Mm | am | 1e24 |
| femtometrefrom Mm | fm | 1e21 |
| picometrefrom Mm | pm | 1e18 |
| nanometrefrom Mm | nm | 1e15 |
| ångströmfrom Mm | Å | 1e16 |
| micrometrefrom Mm | µm | 1000000000000 |
| millimetrefrom Mm | mm | 1000000000 |
| centimetrefrom Mm | cm | 100000000 |
| decimetrefrom Mm | dm | 10000000 |
| metrefrom Mm | m | 1000000 |
| decametrefrom Mm | dam | 100000 |
| hectometrefrom Mm | hm | 10000 |
| kilometrefrom Mm | km | 1000 |
| megametrefrom Mm | Mm | 1 |
| gigametrefrom Mm | Gm | 0.001 |
| terametrefrom Mm | Tm | 0.000001 |
| petametrefrom Mm | Pm | 0.000000001 |
| exametrefrom Mm | Em | 1e-12 |
| zettametrefrom Mm | Zm | 1e-15 |
| yottametrefrom Mm | Ym | 1e-18 |
| ronnametrefrom Mm | Rm | 1e-21 |
| quettametrefrom Mm | Qm | 1e-24 |
| thou / milfrom Mm | mil | 39370100000 |
| inchfrom Mm | in | 39370100 |
| footfrom Mm | ft | 3280840 |
| yardfrom Mm | yd | 1093610 |
| chainfrom Mm | ch | 49709.7 |
| furlongfrom Mm | fur | 4970.97 |
| international milefrom Mm | mi | 621.371 |
| nautical milefrom Mm | nmi | 539.957 |
| U.S. survey footfrom Mm | ftUS | 3280830 |
| typographic pointfrom Mm | pt | 2834650000 |
| astronomical unitfrom Mm | au | 0.00000668459 |
| light-secondfrom Mm | ls | 0.00333564 |
| light-yearfrom Mm | ly | 1.057e-10 |
| parsecfrom Mm | pc | 3.24078e-11 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Mm to au Conversion Reference
Megametre (Mm) and astronomical unit (au) are units of length. Use this page to convert in either direction.
Conversion Examples
| Megametre (Mm) | Astronomical Unit (au) |
|---|---|
| 1 Mm | 0.00000668459 au |
| 5 Mm | 0.0000334229 au |
| 10 Mm | 0.0000668459 au |
| 100 Mm | 0.000668459 au |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
au to Mm (astronomical unit to megametre)
Related Length Conversions
Mm to qm (megametre to quectometre)Mm to rm (megametre to rontometre)Mm to ym (megametre to yoctometre)Mm to zm (megametre to zeptometre)Mm to am (megametre to attometre)Mm to fm (megametre to femtometre)Mm to pm (megametre to picometre)Mm to nm (megametre to nanometre)Mm to Å (megametre to ångström)Mm to µm (megametre to micrometre)Mm to mm (megametre to millimetre)Mm to cm (megametre to centimetre)Mm to dm (megametre to decimetre)Mm to m (megametre to metre)Mm to dam (megametre to decametre)Mm to hm (megametre to hectometre)Mm to km (megametre to kilometre)Mm to Gm (megametre to gigametre)Mm to Tm (megametre to terametre)Mm to Pm (megametre to petametre)Mm to Em (megametre to exametre)Mm to Zm (megametre to zettametre)Mm to Ym (megametre to yottametre)Mm to Rm (megametre to ronnametre)Mm to Qm (megametre to quettametre)Mm to mil (megametre to thou / mil)Mm to in (megametre to inch)Mm to ft (megametre to foot)Mm to yd (megametre to yard)Mm to ch (megametre to chain)Mm to fur (megametre to furlong)Mm to mi (megametre to international mile)Mm to nmi (megametre to nautical mile)Mm to ftUS (megametre to U.S. survey foot)Mm to pt (megametre to typographic point)Mm to ls (megametre to light-second)Mm to ly (megametre to light-year)Mm to pc (megametre to parsec)