Micrometer to Astronomical unit Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert micrometers [µm] to astronomical units [au] or astronomical units [au] to micrometers [µm]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 micrometer [µm] ≈ 6.685 * 10-18 astronomical units [au]1 astronomical unit [au] ≈ 1.496 * 1017 micrometers [µm]

Convert micrometers to astronomical units

There are two simple ways to convert micrometers [µm] to astronomical units [au]. In the first calculation method, the value in micrometers [µm] is divided by the rounded conversion factor of 1.496 * 1017. The second method multiplies the value in micrometers [µm] by the rounded conversion factor of 6.685 * 10-18.

  • Astronomical units [au] ≈ micrometers [µm] ÷ (1.496 * 1017)
  • Astronomical units [au] ≈ micrometers [µm] * 6.685 * 10-18

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of micrometers [µm] to astronomical units [au] can be achieved using the following calculation method.

  • Astronomical units [au] = micrometers [µm] ÷ 23,367 ÷ 64,021 ÷ 108

Convert astronomical units to micrometers

Converting astronomical units [au] to micrometers [µm] is easy and can be done in two ways. The first method involves multiplication, in which the value in astronomical units [au] is multiplied by the rounded conversion factor of 1.496 * 1017. The second variant is a division. Here, the value in astronomical units [au] is divided by the rounded conversion factor of 6.685 * 10-18.

  • Micrometers [µm] ≈ astronomical units [au] * 1.496 * 1017
  • Micrometers [µm] ≈ astronomical units [au] ÷ (6.685 * 10-18)

However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of astronomical units [au] to micrometers [µm] can be achieved using the following calculation method.

  • Micrometers [µm] = astronomical units [au] * 23,367 * 64,021 * 108

Converter

Decimal places

How it's calculated

Factor: 
≈ 1.496 * 1017
Astronomical units = Micrometers ÷ 23,367 ÷ 64,021 ÷ 108
Micrometers = Astronomical units * 23,367 * 64,021 * 108

To all available units

Micrometers

Cable lengths

Micrometers

Chains

Micrometers

Decameters

Micrometers

⅛ Inches

Micrometers

Eighth miles