Convert Astronomical Unit to Millimeter
Input the number of astronomical units you want to convert to millimeters.
How to Convert Astronomical Units to Millimeters
The astronomical unit and millimeter are both units of length. By definition, 1 astronomical unit equals exactly 1.496e14 millimeters. This means to convert astronomical units to millimeters, you multiply by 1.496e14.
Formula
Step-by-Step Example
Convert 5 AU to millimeters:
We need to convert astronomical units to millimeters
Since 1 AU = 1.496e14 mm, multiply by 1.496e14
5 × 1.496e14 = 7.48e14
5 AU = 7.48e14 mm
Astronomical Unit to Millimeter Conversion Table
Quick reference table for common astronomical unit to millimeter conversions. Click any value for detailed calculation.
| Astronomical Units (AU) | Millimeters (mm) |
|---|---|
| 0.1 AU | 1.496e13 mm |
| 0.5 AU | 7.48e13 mm |
| 1 AU | 1.496e14 mm |
| 2 AU | 2.992e14 mm |
| 5 AU | 7.48e14 mm |
| 10 AU | 1.496e15 mm |
| 25 AU | 3.74e15 mm |
| 50 AU | 7.48e15 mm |
| 100 AU | 1.496e16 mm |
About These Units
Astronomical Unit (AU)
An astronomical unit (AU) is the average distance from Earth to the Sun: approximately 149.6 million kilometers or 93 million miles. AUs measure distances within our solar system. Mars is 1.52 AU from the Sun, Jupiter is 5.2 AU.
Millimeter (mm)
A millimeter (mm) is a metric unit of length equal to 1/1000 of a meter or 0.03937 inches. Millimeters are essential for precision measurements in engineering, manufacturing, medical imaging, and rainfall measurements. There are 25.4 mm in one inch.
Frequently Asked Questions
How do I convert astronomical units to millimeters?
To convert astronomical units to millimeters, multiply the value by 1.496e14. For example, 10 AU = 1.496e15 mm.
How many millimeters are in 1 astronomical unit?
1 astronomical unit equals 1.496e14 millimeters.
What is the formula for astronomical units to millimeters?
The formula is: mm = AU × 1.496e14.