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    Convert Kilometers to Meters

    1 kilometer (km) equals 1000 meters (m).

    km
    Swap: convert meters to kilometers
    m

    1 km = 1000 m

    Type in either box. Scientific notation works: 1.5e-3.

    Converting a list? Use the bulk kilometer to meter converter to paste a column from Excel.

    How to Convert Kilometer to Meter

    • 1 km = 1000 m
    • 1 m = 0.001 km
    • Example: convert 15 km to m: 15 km = 15 × 1000 m = 15000 m

    Formula

    m = km × 1000

    Derivation from SI units:

    • 1 km = 10³ m
    • SI base unit: the distance light travels in vacuum in 1/299 792 458 s

    Both units are defined exactly, so the factor is exact. Kilometer definition: kilometer; Meter definition: meter.

    Worked examples

    1. A 1.5 km walk is 1500 m.
      1.5 km × 1000 = 1500 m
    2. A 0.4 km running track lap is 400 m.
      0.4 km × 1000 = 400 m

    Kilometer to Meter conversion table

    Kilometer to Meter conversion table
    Kilometers (km)Meters (m)
    0.1 km100 m
    0.5 km500 m
    1 km1000 m
    1.5 km1500 m
    2 km2000 m
    3 km3000 m
    5 km5000 m
    8 km8000 m
    10 km10000 m
    15 km15000 m
    20 km20000 m
    21.0975 km21097.5 m
    25 km25000 m
    42.195 km42195 m
    50 km50000 m
    80 km80000 m
    100 km100000 m
    160 km160000 m
    200 km200000 m
    500 km500000 m
    1000 km1000000 m

    Where it's used

    Kilometre distances are converted to metres for site plans, cable runs and athletics. Multiply by 1000.

    Kilometer to other length units

    1 km expressed in every length unit
    Conversion1 km equals
    kilometer to meter 1000 m
    kilometer to centimeter 100000 cm
    kilometer to millimeter 1000000 mm
    kilometer to micrometer 1000000000 µm
    kilometer to nanometer 1000000000000 nm
    kilometer to angstrom 10000000000000 Å
    kilometer to mile 0.6213711922 mi
    kilometer to yard 1093.613298 yd
    kilometer to foot 3280.839895 ft
    kilometer to inch 39370.07874 in
    kilometer to mil 39370078.74 mil
    kilometer to nautical mile 0.5399568035 nmi

    Frequently asked questions

    How many meters are in a kilometer?

    Exactly 1000.

    How many meters are in 1 kilometer?

    1 km = 1000 m.

    How do I convert kilometers to meters?

    Multiply the value in km by 1000. For example, 15 km × 1000 = 15000 m.

    Is the km to m conversion exact?

    Yes. Both units are defined exactly, and 1 km is exactly 1000 m.

    Sources

    Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.

    Cite this page

    APA

    Scientific Converters. (2026, October 15). Convert Kilometers to Meters. Retrieved October 17, 2026, from https://scientificconverters.com/length/kilometers-to-meters/

    IEEE

    Scientific Converters, "Convert Kilometers to Meters," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/length/kilometers-to-meters/