30kilometres
30 kilometres is a unit of length in the metric system equal to 30,000 metres. It is commonly used in most countries outside the United States to describe distances on land. In miles, 30 kilometres is about 18.64 miles.
It appears in road distance signs, travel planning, and geographic descriptions. At a typical driving speed
In urban planning and logistics, 30 km can be used as a catchment radius for services, or
In sport, 30 kilometres is a common long-distance benchmark in endurance events such as road races, ultramarathons,
Spelling varies by variant of English: kilometre is common in British, Canadian, and many other varieties; kilometer