1,000 miles to kilometers
1,609.34 km
1,000 mi = 1,609.34 km.
kilometers
1,609.34km
1,000 mi = 1,609.34 km
The short answer
How many kilometers is 1,000 miles?
1,000 mi = 1,609.34 km. 1 mile = 1.609344 kilometers, so the working is 1,000 × 1.609344 = 1,609.34.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 mile = 1.609344 kilometers 1,000 × 1.609344 = 1,609.34
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (km) | Off by |
|---|---|---|
| Whole number | 1,609 | −0.34400 |
| 1 decimal | 1,609.3 | −0.04400 |
| 2 decimals | 1,609.34 | −0.00400 |
Round trip: take 1,609.34 km back the other way and you land on 999.9975 mi — a drift of 0.0025 mi. That gap is the rounding, not the conversion.
What 1,000 mi looks like
1,000 mi
The Mille Miglia took its name from its length, a thousand miles from Brescia to Rome and back.
Frequently asked questions
What is 1,000 miles in kilometers?
1,000 miles is 1,609.34 kilometers. 1 mile = 1.609344 kilometers, so the working is 1,000 × 1.609344 = 1,609.34.
How accurate is 1,609.34 km?
Rounding to 1,609.34 km and converting straight back gives 999.9975 mi, a drift of 0.0025 mi from the 1,000 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
Miles to Km Converter
Convert miles to kilometers — marathons, road trips abroad, and run logs.
Open the miles to km converter →