kilometers (km)

kilometers as a conversion hub: 8 direct pairs, all with the exact factor on the page.

Definition1 km = 1,000 m exactly

CategoryLength Converter

Pairs from here8

Length Converter

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kilometers converted to every other unit

km	mm	cm	m	in	ft	yd	mi	nmi
1 km	1,000,000	100,000	1,000	39,370.08	3,280.84	1,093.61	0.62137119	0.5399568
2 km	2,000,000	200,000	2,000	78,740.16	6,561.68	2,187.23	1.242742	1.079914
5 km	5,000,000	500,000	5,000	196,850.39	16,404.2	5,468.07	3.106856	2.699784
10 km	10,000,000	1,000,000	10,000	393,700.79	32,808.4	10,936.13	6.213712	5.399568
20 km	20,000,000	2,000,000	20,000	787,401.57	65,616.8	21,872.27	12.427424	10.799136
50 km	50,000,000	5,000,000	50,000	1,968,503.94	164,041.99	54,680.66	31.06856	26.99784
100 km	100,000,000	10,000,000	100,000	3,937,007.87	328,083.99	109,361.33	62.137119	53.99568

All conversions starting from km

km to mm km to cm km to m km to in km to ft km to yd km to mi km to nmi

Questions

How do I convert from kilometers?

Pick the target unit from the table on this page, or open the dedicated pair page — each one carries a converter, a table of common values and the exact factor.

Is kilometer exact or approximate?

The factor shown (1 km = 1,000 m) is fixed by definition, so conversions are exact rather than measured.

What is kilometer used for?

kilometers as used in practical measurements