🛰️ Space & Astronomy

Astronomical Unit (AU) Converter

Convert astronomical units (AU) to kilometres, miles, metres, light-years and parsecs.

Free toolGlobal unitsMobile friendly

Enter values

Use the inputs below to calculate the result.

Result

Calculated value—
Uses standard astronomy constants; results are mathematical estimates and should not replace mission-grade ephemerides or navigation data.

How it works

Convert astronomical units (AU) to kilometres, miles, metres, light-years and parsecs.

1 AU = 149,597,870,700 m

How to use this calculator

What to enter

Enter or select the following as requested: Distance (AU). Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The result is the equivalent quantity in the selected target unit. Rounding may affect the final displayed digits.

When to use it

Use this to compare measurements expressed in different compatible units.