Km to m
One km equals 1000 m. Type any number and the answer appears as you type — the maths happens in your browser.
Result
The same value in every unit
| Unit | Value |
|---|
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Common values
| km | m |
|---|---|
| 1 km | 1000 m |
| 2 km | 2000 m |
| 3 km | 3000 m |
| 5 km | 5000 m |
| 10 km | 10000 m |
| 15 km | 15000 m |
| 20 km | 20000 m |
| 25 km | 25000 m |
| 50 km | 50000 m |
| 100 km | 100000 m |
| 500 km | 500000 m |
| 1000 km | 1000000 m |
How to use
- Enter the number of km in the field.
- The result in m updates on every keystroke.
- Use the table below for the values people look up most often.
Formula and reverse conversion
The formula
To convert by hand: m = km × 1000. Going back the other way, one m is 0.001 km.
Metric units differ by powers of ten
Both units belong to the metric system, so the conversion is a shift of the decimal point: the factor is a power of ten and nothing is lost to rounding.
m = km × 1000
Frequently asked questions
How many m are in one km?
One km is 1000 m.
How do I convert km to m?
Multiply by the factor: m = km × 1000.
Is the result exact?
The factors are the exact legal definitions, and up to ten significant digits are kept in the answer. Rounding happens only in the display.
How do I convert m back to km?
One m is 0.001 km — or open the reverse page linked below.