Centimeter 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 centimeters [cm] to astronomical units [au] or astronomical units [au] to centimeters [cm]. 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 centimeter [cm] ≈ 6.685 * 10-14 astronomical units [au]1 astronomical unit [au] ≈ 1.496 * 1013 centimeters [cm]

Convert centimeters to astronomical units

There are two simple ways to convert centimeters [cm] to astronomical units [au]. In the first calculation method, the value in centimeters [cm] is divided by the rounded conversion factor of 1.496 * 1013. The second method multiplies the value in centimeters [cm] by the rounded conversion factor of 6.685 * 10-14.

  • Astronomical units [au] ≈ centimeters [cm] ÷ (1.496 * 1013)
  • Astronomical units [au] ≈ centimeters [cm] * 6.685 * 10-14

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

Astronomical units [au] = centimeters [cm] ÷ 23,367 ÷ 64,021 ÷ 104

Convert astronomical units to centimeters

Converting astronomical units [au] to centimeters [cm] 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 * 1013. The second variant is a division. Here, the value in astronomical units [au] is divided by the rounded conversion factor of 6.685 * 10-14.

  • Centimeters [cm] ≈ astronomical units [au] * 1.496 * 1013
  • Centimeters [cm] ≈ astronomical units [au] ÷ (6.685 * 10-14)

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 centimeters [cm] can be achieved using the following calculation method.

Centimeters [cm] = astronomical units [au] * 23,367 * 64,021 * 104

Converter

Decimal places

How it's calculated

Factor: 
≈ 1.496 * 1013
Astronomical units = Centimeters ÷ 23,367 ÷ 64,021 ÷ 104
Centimeters = Astronomical units * 23,367 * 64,021 * 104

To all available units

Centimeters

Cable lengths

Centimeters

Chains

Centimeters

Decameters

Centimeters

Decimeters

Centimeters

1/8 Inches

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