Convert inches to astronomical units
1 in = 0.000000000000169788512906 au — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
How to convert inches to astronomical units
Multiply the number of inches by 0.000000000000169788512906 to get astronomical units.
Inch: Defined as exactly 25.4 mm by the 1959 international yard and pound agreement.
Astronomical unit: Fixed at exactly 149 597 870 700 m by the IAU in 2012.
Inch to Astronomical unit conversion table
| Inches (in) | Astronomical units (au) |
|---|---|
| 1 in | 1.6978851e-13 |
| 2 in | 3.3957703e-13 |
| 3 in | 5.0936554e-13 |
| 5 in | 8.4894256e-13 |
| 10 in | 1.6978851e-12 |
| 20 in | 3.3957703e-12 |
| 25 in | 4.2447128e-12 |
| 50 in | 8.4894256e-12 |
| 100 in | 1.6978851e-11 |
| 250 in | 4.2447128e-11 |
| 500 in | 8.4894256e-11 |
| 1000 in | 1.6978851e-10 |
Astronomical unit to Inch conversion table
| Astronomical units (au) | Inches (in) |
|---|---|
| 1 au | 5 889 679 900 000 |
| 2 au | 11 779 360 000 000 |
| 3 au | 17 669 040 000 000 |
| 5 au | 29 448 400 000 000 |
| 10 au | 58 896 799 000 000 |
| 20 au | 117 793 600 000 000 |
| 25 au | 147 242 000 000 000 |
| 50 au | 294 484 000 000 000 |
| 100 au | 588 967 990 000 000 |
| 250 au | 1 472 420 000 000 000 |
| 500 au | 2 944 840 000 000 000 |
| 1000 au | 5 889 679 900 000 000 |
Frequently asked
How many astronomical units are in a inch?
One inch equals 1.697885129e-13 astronomical units (in → au). That figure is exact, not rounded.
How do you convert inches to astronomical units?
Multiply the number of inches by 0.000000000000169788512906 to get astronomical units.
What is 1 au in inches?
One astronomical unit is 5889679949000 inches.
What is 10 in in au?
10 in = 1.6978851e-12 au.
What exactly is a inch?
Defined as exactly 25.4 mm by the 1959 international yard and pound agreement.
What exactly is a astronomical unit?
Fixed at exactly 149 597 870 700 m by the IAU in 2012.