Convert mm to miles
1 mm = 6.21371e-7 mi · 1 mi = 1609340 mm · Exact by definition
1 mm = 6.21371e-7 mi
The same value in other units
- centimetre
- 0.1 cm
- metre
- 0.001 m
- kilometre
- 1e-6 km
- inch
- 0.0393701 in
- foot
- 0.00328084 ft
- yard
- 0.00109361 yd
- nautical mile
- 5.39957e-7 nmi
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Length
mm to miles: conversion table
| millimetre | mile |
|---|---|
| 1 mm | 6.21371e-7 mi |
| 2 mm | 1.24274e-6 mi |
| 3 mm | 1.86411e-6 mi |
| 5 mm | 3.10686e-6 mi |
| 10 mm | 6.21371e-6 mi |
| 20 mm | 1.24274e-5 mi |
| 25 mm | 1.55343e-5 mi |
| 50 mm | 3.10686e-5 mi |
| 100 mm | 6.21371e-5 mi |
| 250 mm | 0.000155343 mi |
| 500 mm | 0.000310686 mi |
| 1000 mm | 0.000621371 mi |
| mile | millimetre |
|---|---|
| 1 mi | 1609340 mm |
| 2 mi | 3218690 mm |
| 3 mi | 4828030 mm |
| 5 mi | 8046720 mm |
| 10 mi | 16093400 mm |
| 20 mi | 32186900 mm |
| 25 mi | 40233600 mm |
| 50 mi | 80467200 mm |
| 100 mi | 160934000 mm |
| 250 mi | 402336000 mm |
| 500 mi | 804672000 mm |
| 1000 mi | 1609340000 mm |
How the conversion works
mi = mm × 6.2137119e-7
Both units are defined exactly, so the precision of the mm to miles result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
Keep going