Astronomical Unit to Nautical Mile Conversion
Convert between Astronomical Unit and Nautical Mile quickly and accurately.
How to Convert Astronomical Unit to Nautical Mile
Conversion Formula
Example
Convert 15 AU to nmi:
Unit Information
Learn about the length units you're converting between
Astronomical Unit
AU
Definition
An astronomical unit (symbol: AU) is a unit of length used in astronomy, equal to the average distance between Earth and the Sun. It is approximately 149.6 million kilometers (93 million miles). The AU is the standard unit for measuring distances within the solar system.
History/Origin
The astronomical unit was first estimated by ancient astronomers using observations of planetary positions. The modern value was determined through radar measurements of Venus and Mercury in the 1960s. It was redefined in 2012 to be exactly 149,597,870,700 meters.
Current Use
The astronomical unit is used throughout astronomy for measuring distances within the solar system, planetary orbits, and spacecraft trajectories. It is essential for space mission planning, planetary science, and understanding the scale of our solar system.
Multiplier
149597870691
Offset
0
Nautical Mile
nmi
Definition
A nautical mile is a unit of length used in maritime and aviation navigation, equal to exactly 1,852 meters or approximately 1.151 statute miles. It is based on one minute of latitude on Earth's surface.
History/Origin
The nautical mile was developed for maritime navigation, originally based on the length of one minute of arc along a meridian. It was standardized internationally in 1929 and remains essential for navigation and aviation worldwide.
Current Use
Nautical miles are used exclusively in maritime navigation for measuring distances at sea, in aviation for flight planning and navigation, in oceanography for marine measurements, and in international shipping and aviation regulations.
Multiplier
1852
Offset
0
Astronomical Unit to Nautical Mile Conversion Table
| Astronomical Unit [AU] | Nautical Mile [nmi] |
|---|---|
| 1 AU | 80776388.0620950013 nmi |
| 10 AU | 807763880.6209499836 nmi |
| 25 AU | 2019409701.5523760319 nmi |
| 50 AU | 4038819403.1047520638 nmi |
| 100 AU | 8077638806.2095031738 nmi |
| 0 AU | 0E+0 nmi |
| -10 AU | -807763880.6209499836 nmi |
| -40 AU | -3231055522.4838018417 nmi |
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