1,000 km to mi — 1,000 kilometres in miles
Exact 1,000 ÷ 1.609344 = 621.371192
1,000 kilometres in other units
| Nanometres | 1,000,000,000,000,000 | nm |
|---|---|---|
| Micrometres | 1,000,000,000,000 | µm |
| Millimetres | 1,000,000,000 | mm |
| Centimetres | 100,000,000 | cm |
| Metres | 1,000,000 | m |
| Inches | 39,370,078.74 | in |
| Feet | 3,280,839.9 | ft |
| Yards | 1,093,613.3 | yd |
| Miles | 621.371192 | mi |
| Nautical miles | 539.956803 | nmi |
km to mi at a glance
| Kilometres | Miles |
|---|---|
| 1 km | 0.62137119 mi |
| 2 km | 1.242742 mi |
| 3 km | 1.864114 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.213712 mi |
| 20 km | 12.427424 mi |
| 25 km | 15.53428 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.137119 mi |
| 250 km | 155.342798 mi |
| 500 km | 310.685596 mi |
| 1,000 km | 621.371192 mi |
How to convert kilometres to miles
Multiply by 0.62137119 — one kilometre is 0.62137119 miles. That factor is exact: it comes from the definition of the units rather than from a measurement, so it will not change and does not need rounding.
Working 1,000 ÷ 1.609344 = 621.371192
In words: about six hundred twenty-one miles.
What these units are
The kilometre and the mile are covered in the length unit guide, along with every other unit on this page.
Questions
How many miles are in a kilometre?
One kilometre is 0.62137119 miles. This figure is exact — it comes from the definition of the unit, not a measurement.
What is 1,000 kilometres in miles?
1,000 kilometres is 621.371192 miles. The working is 1,000 ÷ 1.609344 = 621.371192.
Is an inch exactly 2.54 centimetres?
Yes, exactly. Since 1959 the international inch has been defined as 25.4 millimetres, so the figure is a definition rather than a measurement. Every foot, yard and mile figure on this page follows from it and is equally exact.
Why is a nautical mile different from a mile?
It is tied to the Earth rather than to a body part. One nautical mile is one minute of latitude, fixed at exactly 1,852 metres, which makes chart work straightforward for anyone navigating by degrees.
How do I write my height in metric?
Convert the whole thing to inches first, then multiply by 2.54. Five foot ten is 70 inches, which is 177.8 cm. Converting the feet and the inches separately is where the arithmetic usually goes wrong.
Meter or metre?
Both name the same unit. "Metre" is the international spelling used by the SI and most English-speaking countries; "meter" is standard in the United States. Either spelling will find this page.