If you know an object's distance from the sun in kilometers, how can you find the distance in AU?

We divide our value by 1.5×10⁸

Explanation:

AU is a unit to determine distance in the space.

We know that AU means astronomic unit.

The value for conversion is 1.5×10⁸ Km

1 AU = 1.5×10⁸ Km

Let's see the example:

One star is located from the sun, around 3.35×10¹⁰ Km away. To determine the distance in AU we use the conversion factor:

3.35×10¹⁰ Km . 1 AU / 1.5×10⁸ Km = 223.3 AU

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