42 Miles to km
42 mi ≈ 67.59 km
42 miles is approximately 67.59 kilometers.
How to convert 42 mi to km
Use the formula km = mi × 1.609344:
km = 42 × 1.609344km = 67.592448
So 42 mi = 67.592448 km, or about 67.59 km rounded.
Rounded values and quick estimate
- Rounded to a whole number: 68 km
- Rounded to one decimal place: 67.6 km
- Conversion factor: 1 mile = 1.61 kilometers
Quick mental estimate: multiply by 1.6. For 42 mi that gives about 67.2 km — within 1% of the exact answer. Use the exact formula when precision matters.
42 Miles in other units
- Kilometers
- 67.59 km
- Millimeters
- 67592448 mm
- Centimeters
- 6759244.8 cm
- Meters
- 67592.45 m
- Inches
- 2661120 in
- Feet
- 221760 ft
- Yards
- 73920 yd
- Micrometers
- 67592448000 µm
- Hands
- 665280 hh
- Nautical miles
- 36.5 nmi
- Mils (thou)
- 2661120000 mil
42 mi and nearby values
About miles and kilometers
A mile is 5,280 feet, or exactly 1,609.344 meters. It is the road-distance unit in the US and UK.
A kilometer is 1,000 meters. It is used for road distances and running races in most of the world.
Related conversions
Frequently asked questions
What is 42 Miles in km?
42 miles is about 67.59 kilometers (42 mi ≈ 67.59 km).
How do you convert 42 mi to km?
Apply km = mi × 1.609344: km = 42 × 1.609344, km = 67.592448.
How many miles is 67.59 km?
67.59 km is about 42 miles.