To convert kilometers to attometers, multiply the value by 1 × 10²¹. To go the other way, multiply attometers by 1 × 10⁻²¹ to get kilometers.
| Kilometers (km) | Attometers (am) |
|---|---|
| 1 km | 1 × 10²¹ am |
| 2 km | 2 × 10²¹ am |
| 5 km | 5 × 10²¹ am |
| 10 km | 1 × 10²² am |
| 20 km | 2 × 10²² am |
| 50 km | 5 × 10²² am |
| 100 km | 1 × 10²³ am |
| 500 km | 5 × 10²³ am |
| 1,000 km | 1 × 10²⁴ am |
Kilometer (km). A kilometer is 1,000 meters and the standard unit for road distances in most countries, including India.
Attometer (am). An attometer is 10⁻¹⁸ meters, a scale used in particle physics.
There are 1 × 10²¹ attometers in one kilometer.
Multiply the number of kilometers by 1 × 10²¹. For example, 10 kilometers equal 1 × 10²² attometers.
One attometer equals 1 × 10⁻²¹ kilometers.