Sun's Radius to Terameter Converter
Unit Converter
Instant · Precise · Universal
32 units available
6 categories total
How to Convert Sun's Radius to Terameter
To convert solar radii to km: multiply by 696,340. To convert solar radii to AU: multiply by 0.00465.
1 R☉ = 6.9634 × 10⁸ m = 696,340 km ≈ 109 × Earth's radius ≈ 0.00465 AU.
For example, 1 Sun's Radius (R☉) = 0.00069634 Terameter (Tm).
Sun's Radius to Terameter — Common Values
| Sun's Radius (R☉) | Terameter (Tm) |
|---|---|
| 0.1 | 0.000069634 |
| 0.5 | 0.00034817 |
| 1 | 0.00069634 |
| 2 | 0.00139268 |
| 5 | 0.0034817 |
| 10 | 0.0069634 |
| 25 | 0.0174085 |
| 50 | 0.034817 |
| 100 | 0.069634 |
| 500 | 0.34817 |
| 1000 | 0.69634 |
About Sun's Radius (R☉)
Definition
The solar radius is the radius of the Sun, approximately 6.9634 × 10⁸ meters (about 696,340 km).
Mathematical Relationship
1 R☉ = 6.9634 × 10⁸ m = 696,340 km ≈ 109 × Earth's radius ≈ 0.00465 AU.
Conversion Formula
To convert solar radii to km: multiply by 696,340. To convert solar radii to AU: multiply by 0.00465.
Practical Applications
Describing stellar sizes: Betelgeuse ≈ 700 R☉, Sirius ≈ 1.7 R☉, a white dwarf ≈ 0.01 R☉.
Interesting Facts
You could line up about 109 Earths across the Sun's diameter. The largest known star (UY Scuti) is about 1,700 R☉.
Common Mistakes
Confusing solar radius with solar diameter — the diameter is 2 R☉. Also, stellar catalogs list radius, not diameter.
Educational Tips
The Sun's radius (109 × Earth) gives a sense of scale: you could fit over a million Earths inside the Sun by volume.
About Terameter (Tm)
Definition
The terameter is a unit of length equal to 10¹² meters, or one trillion meters (one billion kilometers).
Mathematical Relationship
1 Tm = 10¹² m = 10⁹ km = 6.685 AU.
Conversion Formula
To convert Tm to AU: multiply by 6.685. To convert Tm to km: multiply by 10⁹.
Practical Applications
Expressing outer solar system distances in metric form, though AU is standard.
Interesting Facts
One light-hour is approximately 1.08 Tm. The distance to Pluto's orbit is roughly 5.9 Tm.
Common Mistakes
Confusing tera (10¹²) with other large prefixes. Remember: tera comes after giga in the SI scale.
Educational Tips
Think of the outer solar system: Saturn is about 1.4 Tm from the Sun, a good mental anchor.