Convert kilometre to metre

1 kilometre = 1000 metres. Enter any value below for an exact conversion.

Value in kilometres

1 km =

1000 m

metres

Need the reverse? Convert metre to kilometre →

Formula

1 kilometre = 1000 metres
metre = kilometres × 1000
kilometre = metres × 0.001

kilometre to metre conversion table

1 km1000 m

2 km2000 m

3 km3000 m

5 km5000 m

10 km10000 m

20 km20000 m

25 km25000 m

50 km50000 m

100 km100000 m

1000 km1000000 m

About converting kilometres to metres

Kilometres to metres is a decimal shift used constantly in running and cycling — race distances, track laps, and pace splits — as well as in mapping and construction. One kilometre is exactly 1,000 metres, so a 5 km run is 5,000 m and a 400 m lap is one-fortieth of that.

Method & sources

Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.

Page last updated: October 1, 2026

Frequently asked questions

How many metres are in a kilometre?

One kilometre equals 1000 metres. So 10 kilometres is 10000 metres. Use the converter above for any value.

What is the formula to convert kilometres to metres?

1 kilometre = 1000 metres metre = kilometres × 1000 kilometre = metres × 0.001

Is the kilometre-to-metre conversion exact?

Yes. The conversion factor between kilometres and metres is defined exactly, so results are precise — only rounded for display.

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