How many miles are in a kilometer?

There are about 0.6214 miles in 1 kilometer. This comes from the exact factor that one mile equals 1,609.344 metres (1 ÷ 1.609344 ≈ 0.6214), so a kilometre is a little under two-thirds of a mile.

What is 1 km in miles?

1 kilometer is about 0.6214 mile. Some handy values: 5 km ≈ 3.11 mi, 10 km ≈ 6.21 mi and 42.195 km (a marathon) ≈ 26.22 mi. The converter shows the exact decimal-mile value for any kilometre figure you enter.

Is a kilometer shorter than a mile?

Yes. A kilometre is shorter — a mile is about 1.609 kilometres, so it takes roughly 1.6 kilometres to make one mile. That is why a distance reads as a larger number in kilometres than in miles.

When should I convert kilometers to miles?

It is common when comparing running or cycling distances, reading a speedometer or road sign in a country that uses the other system, planning travel, or converting fitness-app distances between metric and imperial.

Can this tool convert miles back to kilometers?

Yes. Tap the ⇄ swap button to reverse the direction and convert miles to kilometres (multiply by 1.609344). You can also pick any other length unit from the dropdown, since this page runs on our full Mega Length Converter.

Does the converter update live and work on mobile?

Yes. The mile result recalculates instantly as you type — there is no submit button — and the layout adapts to phones. A ready-made kilometres-to-miles table is included for the most common values.

Kilometers to Miles Converter

Convert kilometers to miles instantly. This crosses from the metric to the imperial system, and the relationship is exact: one mile is defined as 1,609.344 metres, which makes one kilometre equal to about 0.6214 miles. So to go from kilometers (km) to miles (mi) you multiply by 0.6214 (or divide by 1.609344) — for exam…

VALUE & FROM

0.62137119

1 kilometer = 0.62137119 mile · 1 kilometer = 0.62137119 mile

1 kilometer IN EVERY UNIT

METRIC (SI)

IMPERIAL / US

NAUTICAL

TYPOGRAPHIC

ASTRONOMICAL

SCIENTIFIC

HISTORICAL & FUN

Created with❤️byeaglecalculator.com

HOW TO USE

1
Enter the distance in kilometers (km) in the value box — the converter defaults to kilometres → miles.
2
Read the mile (mi) result instantly, or do it by hand: multiply the kilometres by 0.6214.
3
Use the km-to-miles table below for common values, or tap ⇄ to convert miles back to kilometres.
4
Need another unit? Pick any of the 74 length units in the dropdown, then Share or Embed your conversion.

KILOMETER TO MILE TABLE

kilometer (km)

mile (mi)

1 km

0.62137119 mi

2 km

1.2427424 mi

3 km

1.8641136 mi

4 km

2.4854848 mi

5 km

3.106856 mi

10 km

6.2137119 mi

15 km

9.3205679 mi

20 km

12.427424 mi

25 km

15.53428 mi

50 km

31.06856 mi

100 km

62.137119 mi

1 kilometer = 0.62137119 mile · 1 mile = 1.609344 kilometer

QUICK REFERENCE

1 inch

2.54 cm

1 foot

30.48 cm

1 yard

0.9144 m

1 mile

1.609344 km

1 nautical mile

1.852 km

1 kilometer

0.621371 mi

1 meter

3.28084 ft

1 light-year

9.4607×10¹² km

1 AU

149,597,870.7 km

1 parsec

3.26156 ly

ABOUT LENGTH UNITS

Length is measured against the metre, the SI base unit, defined by the speed of light. Every unit here is stored as its exact number of metres, so a conversion is simply the input turned into metres and then into the target unit. The metric prefixes run the full modern range — from the quectometre (10⁻³⁰ m) to the quettametre (10³⁰ m), including the ronna and quetta prefixes added in 2022. The imperial and US units use their exact international definitions (an inch is exactly 2.54 cm), while astronomical units such as the light-year, astronomical unit and parsec, and sub-atomic scales like the ångström, Bohr radius and Planck length, extend the range in both directions. Historical and regional units — cubits, ells, versts, the Scandinavian mile — and playful ones like the smoot use common modern equivalents and can vary by source.

FREQUENTLY ASKED QUESTIONS

Multiply the number of kilometers by 0.6214 (equivalently, divide by 1.609344). This follows from the exact definition that one mile is 1,609.344 metres. For example, 8 km × 0.6214 ≈ 4.97 mi. The converter does this instantly for any value.

Formula: miles = kilometers × 0.6214.
Or divide kilometres by 1.609344 (exact).
8 km ≈ 4.97 mi; 5 km ≈ 3.11 mi.
To reverse it, multiply miles by 1.609344.

RELATED CALCULATORS

Millimeters to Centimeters

Open →

Feet to Meters

Open →

Centimeters to Millimeters

Open →

Feet to Inches

Open →

MORE LENGTH CALCULATORS

Inches to Millimeters

Calculate instantly →

Inches to Centimeters

Calculate instantly →

Inches to Meters

Calculate instantly →

Inches to Feet

Calculate instantly →

Feet to Centimeters

Calculate instantly →

Feet to Meters

Calculate instantly →

Feet to Inches

Calculate instantly →

Feet to Miles

Calculate instantly →

Yards to Meters

Calculate instantly →

Miles to Kilometers

Calculate instantly →

Miles to Feet

Calculate instantly →

Mega Length Converter

Calculate instantly →

Millimeters to Centimeters

Calculate instantly →

Centimeters to Millimeters

Calculate instantly →

Centimeters to Meters

Calculate instantly →

Millimeters to Meters

Calculate instantly →

Millimeters to Inches

Calculate instantly →

Centimeters to Inches

Calculate instantly →

Centimeters to Feet

Calculate instantly →

Meters to Millimeters

Calculate instantly →

Was this calculator helpful?

Last updated: — · 74 length units · Exact SI & imperial definitions · Verified by the EagleCalculator team · Eagle-eyed accuracy for every calculation.