How many meters in a mile

One mile is exactly 1,609.344 meters. That is a definition rather than a measurement: the imperial and US customary units were fixed against metric ones by the 1959 international yard and pound agreement, so this factor does not drift and will not be revised.

Worked through: 1 mi x 1,609.344 = 1,609.34 m.

Going the other way, one meter is 0.0006213712 miles.

For mental arithmetic: Multiply by 1,600 and add 0.6%. Or think of a mile as 1.6 km.

Running is where this number gets argued about. Four laps of a 400 m track is 1,600 meters, which is 9.344 meters short of a mile, and that is why a track has a separate mile start line set 9.34 m behind the 1,600 m one. American high school track runs the 1,600 and still calls it the mile; the 1,500 m Olympic distance is the 'metric mile' and is a full 109 meters shorter. The other thing worth knowing is that there used to be two miles in the US. The survey mile, used in land records, was 1,609.347 meters (two parts per million longer) and was formally retired at the end of 2022, so any figure on an older plat may be in the other one.

Precision is worth matching to the input. A measurement given as 0.1 mi carries one or two significant figures, and reporting its conversion to six implies a precision the original never had.