1 Kilometers in Astronomical Units
1 km = 6.68459 × 10⁻⁹ au
1 Kilometers equals 6.68459 × 10⁻⁹ Astronomical Units (1 km = 6.68459 × 10⁻⁹ au).
Quick Facts: Kilometers to Astronomical Units
- Conversion
- 1 Kilometers = 6.68459 × 10⁻⁹ Astronomical Units
- Formula
- Convert Kilometers to Astronomical Units
- Calculation
- 1 km → 6.68459 × 10⁻⁹ au
- Reverse
- 6.68459 × 10⁻⁹ au = 1 km
- Also equals
- 100,000 cm · 49.71 ch · 10,000 dm · 546.8 ftm · 3,280.8 ft · 4.97 fur · 9,842.5 hh · 39,370.1 in
How Much Is 1 km?
1 km is roughly Earth to Moon (384,400 km)
How to Convert Kilometers to Astronomical Units
au = km × 6.68459 × 10⁻⁹
- Start with 1 km
- Calculate 1 × 6.68459 × 10⁻⁹
- The result is 6.68459 × 10⁻⁹ au
Worked example: 1 km = 6.68459 × 10⁻⁹ au
Common Kilometers to Astronomical Units Conversions
| Kilometers (km) | Astronomical Units (au) | Status |
|---|---|---|
| 1 km | 6.68459 × 10⁻⁹ au | Current |
| 5 km | 3.34229 × 10⁻⁸ au | |
| 10 km | 6.68459 × 10⁻⁸ au | |
| 42.195 km | 2.82056 × 10⁻⁷ au | |
| 100 km | 6.68459 × 10⁻⁷ au | |
| 500 km | 0.000003 au | |
| 1,000 km | 0.000007 au | |
| 10,000 km | 0.0001 au | |
| 100,000 km | 0.0007 au | |
| 1,000,000 km | 0.0067 au | |
| 10,000,000 km | 0.0668 au | |
| 149,597,871 km | 1 au |
1 Kilometers in Other Units
Centimeters 100,000 cm
Chains 49.71 ch
Decimeters 10,000 dm
Fathoms 546.8 ftm
Feet 3,280.8 ft
Furlongs 4.97 fur
Hands 9,842.5 hh
Inches 39,370.1 in
Leagues 0.207 lea
Meters 1,000 m
Micrometers 1,000,000,000 μm
Miles 0.621 mi
Millimeters 1,000,000 mm
Nautical Miles 0.54 nmi
Rods 198.8 rd
Thou 39,370,078.7 thou
Yards 1,093.6 yd
Want to learn more? Read our complete Kilometers to Astronomical Units guide with formula, FAQ, and background info.