Convert inches to miles
1 in = 1.57828e-5 mi · 1 mi = 63360 in · Exact by definition
1 in = 1.57828e-5 mi
The same value in other units
- millimetre
- 25.4 mm
- centimetre
- 2.54 cm
- metre
- 0.0254 m
- kilometre
- 2.54e-5 km
- foot
- 0.0833333 ft
- yard
- 0.0277778 yd
- nautical mile
- 1.37149e-5 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
inches to miles: conversion table
| inch | mile |
|---|---|
| 1 in | 1.57828e-5 mi |
| 2 in | 3.15657e-5 mi |
| 3 in | 4.73485e-5 mi |
| 5 in | 7.89141e-5 mi |
| 10 in | 0.000157828 mi |
| 20 in | 0.000315657 mi |
| 25 in | 0.000394571 mi |
| 50 in | 0.000789141 mi |
| 100 in | 0.00157828 mi |
| 250 in | 0.00394571 mi |
| 500 in | 0.00789141 mi |
| 1000 in | 0.0157828 mi |
| mile | inch |
|---|---|
| 1 mi | 63360 in |
| 2 mi | 126720 in |
| 3 mi | 190080 in |
| 5 mi | 316800 in |
| 10 mi | 633600 in |
| 20 mi | 1267200 in |
| 25 mi | 1584000 in |
| 50 mi | 3168000 in |
| 100 mi | 6336000 in |
| 250 mi | 15840000 in |
| 500 mi | 31680000 in |
| 1000 mi | 63360000 in |
How the conversion works
mi = in × 1.5782828e-5
Both units are defined exactly, so the precision of the inches 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