To convert astronomical units to nautical miles, multiply by 80776388.07.
The calculation uses 1 AU = 80776388.07 nmi. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in nmi = value in AU × 80776388.07
AU- Input unit: astronomical units
nmi- Output unit: nautical miles
How to use this calculator
- Enter a value in AU.
- Multiply by the stored conversion factor.
- Read the result in nmi; divide by the same factor to convert back.
Worked examples
Worked conversion
1 AU × 80776388.07 ≈ 80776388.07 nmi.
Reverse conversion
80776388.07 nmi ÷ 80776388.07 ≈ 1 AU. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 80776388.07 nmi per AU.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
AU to nmi table
| AU | nmi (rounded) |
|---|---|
| 0 | 0 |
| 1 | 80776388.07 |
| 2 | 161552776.1 |
| 5 | 403881940.3 |
| 10 | 807763880.7 |
| 100 | 8077638807 |
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