Solar radii to Astronomical units Converter

1 solar radius (R☉) equals 0.004650467261 astronomical units (au).

Quick answer

  • 1 solar radius = 0.004650467261 astronomical units
  • 1 astronomical unit = 215.0321557 solar radii
  • Formula: au = R☉ × 0.004650467261

1 solar radius = 0.004650467261 astronomical units

How to convert solar radii to astronomical units

au = R☉ × 0.004650467261

To convert solar radii to astronomical units, multiply the number of solar radii by 0.004650467261.

Example: 4 R☉ to au

  1. Start with the value in solar radii: 4 R☉.
  2. Multiply by 0.004650467261: 4 × 0.004650467261 = 0.01860186904.
  3. Result: 4 solar radii = 0.01860186904 astronomical units.

Going the other way, 1 astronomical unit = 215.032155671 solar radii, so to convert astronomical units back to solar radii you divide by the same number. See astronomical units to solar radii.

Solar radii to astronomical units conversion table

Solar radii (R☉)Astronomical units (au)
1 R☉ 0.004650467261 au
2 R☉ 0.009300934522 au
3 R☉ 0.01395140178 au
4 R☉ 0.01860186904 au
5 R☉ 0.0232523363 au
6 R☉ 0.02790280357 au
7 R☉ 0.03255327083 au
8 R☉ 0.03720373809 au
9 R☉ 0.04185420535 au
10 R☉ 0.04650467261 au
100 R☉ 0.4650467261 au

What is a solar radius?

The solar radius is the radius of the Sun, 695,700 km, used as a unit for the sizes of stars.

More about solar radii →

What is an astronomical unit?

The astronomical unit (au) is a unit of length roughly equal to the average distance between the Earth and the Sun, about 149.6 million km or 93 million miles.

More about astronomical units →

Convert solar radii to other units

Convert other units to astronomical units

Frequently asked questions

How many astronomical units are in a solar radius?

One solar radius is 0.004650467261 astronomical units.

How many solar radii are in an astronomical unit?

One astronomical unit is 215.0321557 solar radii.

What is the formula to convert solar radii to astronomical units?

au = R☉ × 0.004650467261.