Instant · Precise · Universal
32 units available
6 categories total
To convert miles to km: multiply by 1.60934. To convert km to miles: multiply by 0.621371.
1 mi = 5,280 ft = 1,760 yd = 1,609.344 m = 1.609344 km.
For example, 1 Mile (mi) = 0.001609344 Megameter (Mm).
| Mile (mi) | Megameter (Mm) |
|---|---|
| 0.1 | 0.0001609344 |
| 0.5 | 0.000804672 |
| 1 | 0.001609344 |
| 2 | 0.003218688 |
| 5 | 0.00804672 |
| 10 | 0.01609344 |
| 25 | 0.0402336 |
| 50 | 0.0804672 |
| 100 | 0.1609344 |
| 500 | 0.804672 |
| 1000 | 1.609344 |
The mile is a unit of length equal to 5,280 feet, 1,760 yards, or exactly 1,609.344 meters.
1 mi = 5,280 ft = 1,760 yd = 1,609.344 m = 1.609344 km.
To convert miles to km: multiply by 1.60934. To convert km to miles: multiply by 0.621371.
Highway distances, speed limits (mph), running races (1-mile run), and property boundary descriptions.
A 4-minute mile was once thought impossible. Roger Bannister broke the barrier in 1954 with a time of 3:59.4.
Confusing statute miles with nautical miles (1 nmi = 1.852 km vs 1 mi = 1.609 km). They're different units.
Quick km↔mi: Fibonacci numbers approximate the ratio! 5 mi ≈ 8 km, 8 mi ≈ 13 km, matching the 1.6 ratio.
The megameter is a unit of length equal to 10⁶ meters (1,000 kilometers or one million meters).
1 Mm = 10⁶ m = 1,000 km = 1,000,000 m.
To convert Mm to km: multiply by 1,000. To convert Mm to miles: multiply by 621.371.
Describing planetary diameters and distances within the solar system in a compact metric form.
Earth's diameter ≈ 12.7 Mm. The circumference of Earth ≈ 40 Mm — this is by design, as the meter was originally defined from it.
Uppercase matters: 'Mm' = megameter (10⁶ m), 'mm' = millimeter (10⁻³ m) — a factor of 10⁹ difference!
Remember the SI prefix pattern: kilo (10³), mega (10⁶), giga (10⁹). Each step is 1,000× larger.



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