How many kilometers are in a mile?

One mile equals approximately 1.60934 kilometers. For quick mental math, multiply miles by 1.6 to get a close estimate in kilometers. For example, 10 miles × 1.6 = 16 km. The exact conversion factor is 1 mile = 1.609344 km.

How do I convert miles to kilometers?

To convert miles to kilometers, multiply by 1.60934. Formula: km = miles × 1.60934. For example, 5 miles × 1.60934 = 8.0467 km. For quick estimates, multiply by 1.6 or use the rule: 5 miles ≈ 8 km. To convert km to miles, divide by 1.60934 or multiply by 0.621371.

How far is a 5K in miles?

A 5K (5 kilometers) equals approximately 3.107 miles or 3.1 miles. This is the most popular road race distance worldwide. To calculate: 5 km ÷ 1.60934 = 3.107 miles. Other common races: 10K = 6.2 miles, half marathon (21.1 km) = 13.1 miles, marathon (42.2 km) = 26.2 miles.

How far is a marathon in kilometers?

A marathon is 42.195 kilometers (or 26.2 miles). A half marathon is 21.0975 km (13.1 miles). The marathon distance was standardized in 1921 based on the 1908 London Olympics course from Windsor Castle to the Olympic Stadium, which was exactly 26 miles and 385 yards.

What is 60 mph in km/h?

60 miles per hour equals approximately 96.56 km/h. Speed limits in countries using the metric system are typically set at round numbers: 50 km/h (≈31 mph) in cities, 80-100 km/h (≈50-62 mph) on rural roads, 110-130 km/h (≈68-81 mph) on highways. To convert any speed: mph × 1.60934 = km/h.

Why does the US use miles instead of kilometers?

The United States uses the imperial system (miles, feet, inches) inherited from British colonial rule. While most countries adopted the metric system (kilometers, meters) in the 20th century, the US retained imperial units due to the cost and complexity of converting infrastructure like road signs, speed limits, and vehicle odometers. However, US science and medicine use metric.

How many steps are in a mile vs a kilometer?

On average, a person takes about 2,000 steps to walk 1 mile (1.6 km) or 1,250 steps per kilometer. This varies by height and stride length. Taller people have longer strides and take fewer steps per mile. A 5'4" person might take 2,300 steps per mile, while a 6'0" person takes closer to 1,800 steps per mile.

What is a nautical mile in kilometers?

One nautical mile equals 1.852 kilometers (or 1.15078 statute miles). Nautical miles are used in marine and aviation contexts because they are based on the Earth's circumference — one nautical mile equals one minute of latitude. This makes navigation calculations easier. Speed in nautical miles per hour is called a "knot" (1 knot = 1.852 km/h).

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Miles to Kilometers Converter

1 mile equals 1.609344 kilometers. To convert miles to km, multiply the distance in miles by 1.609344. For example, 5 miles = 8.05 km, a marathon (26.2 miles) = 42.195 km, and a 5K = 3.107 miles.

Convert miles to kilometers and kilometers to miles instantly. Real-time conversion as you type. Includes common distance presets for running events (5K, 10K, marathon) and a reference table.

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Conversion Formula

km = miles × 1.609344
1 mile = 1.609344 kilometers

Common Distance Reference

Distance	Miles	Kilometers
100 meters	0.062 mi	0.100 km
1 kilometer	0.621 mi	1.000 km
1 mile	1.000 mi	1.609 km
5K run	3.107 mi	5.000 km
10K run	6.214 mi	10.000 km
Half marathon	13.109 mi	21.097 km
Marathon	26.219 mi	42.195 km
100 kilometers	62.137 mi	100.000 km

How to Use

Enter your value in the input field
Click the Calculate/Convert button
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Frequently Asked Questions

How many kilometers are in a mile?: One mile equals approximately 1.60934 kilometers. For quick mental math, multiply miles by 1.6 to get a close estimate in kilometers. For example, 10 miles × 1.6 = 16 km. The exact conversion factor is 1 mile = 1.609344 km.
How do I convert miles to kilometers?: To convert miles to kilometers, multiply by 1.60934. Formula: km = miles × 1.60934. For example, 5 miles × 1.60934 = 8.0467 km. For quick estimates, multiply by 1.6 or use the rule: 5 miles ≈ 8 km. To convert km to miles, divide by 1.60934 or multiply by 0.621371.
How far is a 5K in miles?: A 5K (5 kilometers) equals approximately 3.107 miles or 3.1 miles. This is the most popular road race distance worldwide. To calculate: 5 km ÷ 1.60934 = 3.107 miles. Other common races: 10K = 6.2 miles, half marathon (21.1 km) = 13.1 miles, marathon (42.2 km) = 26.2 miles.
How far is a marathon in kilometers?: A marathon is 42.195 kilometers (or 26.2 miles). A half marathon is 21.0975 km (13.1 miles). The marathon distance was standardized in 1921 based on the 1908 London Olympics course from Windsor Castle to the Olympic Stadium, which was exactly 26 miles and 385 yards.
What is 60 mph in km/h?: 60 miles per hour equals approximately 96.56 km/h. Speed limits in countries using the metric system are typically set at round numbers: 50 km/h (≈31 mph) in cities, 80-100 km/h (≈50-62 mph) on rural roads, 110-130 km/h (≈68-81 mph) on highways. To convert any speed: mph × 1.60934 = km/h.
Why does the US use miles instead of kilometers?: The United States uses the imperial system (miles, feet, inches) inherited from British colonial rule. While most countries adopted the metric system (kilometers, meters) in the 20th century, the US retained imperial units due to the cost and complexity of converting infrastructure like road signs, speed limits, and vehicle odometers. However, US science and medicine use metric.
How many steps are in a mile vs a kilometer?: On average, a person takes about 2,000 steps to walk 1 mile (1.6 km) or 1,250 steps per kilometer. This varies by height and stride length. Taller people have longer strides and take fewer steps per mile. A 5'4" person might take 2,300 steps per mile, while a 6'0" person takes closer to 1,800 steps per mile.
What is a nautical mile in kilometers?: One nautical mile equals 1.852 kilometers (or 1.15078 statute miles). Nautical miles are used in marine and aviation contexts because they are based on the Earth's circumference — one nautical mile equals one minute of latitude. This makes navigation calculations easier. Speed in nautical miles per hour is called a "knot" (1 knot = 1.852 km/h).

Common Distance Conversions

Distance	Miles	Kilometers
100 meters	0.062 mi	0.1 km
1 kilometer	0.621 mi	1 km
1 mile	1 mi	1.609 km
5K run	3.107 mi	5 km
10K run	6.214 mi	10 km
Half marathon	13.109 mi	21.097 km
Marathon	26.219 mi	42.195 km
100 kilometers	62.137 mi	100 km