20 miles to kilometers
32.19 km
20 mi = 32.19 km.
kilometers
32.19km
20 mi = 32.19 km
The short answer
How many kilometers is 20 miles?
20 mi = 32.19 km. 1 mile = 1.609344 kilometers, so the working is 20 × 1.609344 = 32.19.
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 20 × 1.609344 = 32.19
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 | 32 | −0.18688 |
| 1 decimal | 32.2 | +0.01312 |
| 2 decimals | 32.19 | +0.00312 |
Round trip: take 32.19 km back the other way and you land on 20.0019 mi — a drift of 0.0019 mi. That gap is the rounding, not the conversion.
What 20 mi looks like
21 mi
The Strait of Dover, the narrowest crossing of the English Channel, is about 20.7 miles wide.
Frequently asked questions
What is 20 miles in kilometers?
20 miles is 32.19 kilometers. 1 mile = 1.609344 kilometers, so the working is 20 × 1.609344 = 32.19.
How accurate is 32.19 km?
Rounding to 32.19 km and converting straight back gives 20.0019 mi, a drift of 0.0019 mi from the 20 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
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