Miles to Inches Converter

Length conversion · Updated 2026-10-04

Converting miles to inches is a multiplication by a fixed factor: 1 mi = 63360 in. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.

Because one mile works out to 63360 in, the inch is the much larger unit of the two: a figure given in inch always carries a larger number than the same measurement in mile. A chart drawn in mi can hide that, so check which label the axis uses before you compare two readings.

DIY and home-improvement work is where this pair shows up most: you measure in miles but the hardware store or an imported product sheet quotes inches, so the conversion has to be right the first time.

The conversion factor used here is 63360 in per mile (0 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 mi a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 1.5783e-5 mi per in, the exact reciprocal, so a round trip through both pages returns your original number.

Miles to Inches formula

Use this formula to convert any mile value to inches:

Worked example: 100 mi × 63360 = 6336000 in.

Miles to Inches conversion table

Miles (mi)	Inches (in)
0.5 mi	31680 in
1 mi	63360 in
2 mi	126720 in
5 mi	316800 in
10 mi	633600 in
20 mi	1267200 in
50 mi	3168000 in
100 mi	6336000 in
500 mi	3.1680e+7 in
1000 mi	6.3360e+7 in

How to convert miles to inches

Multiply the mile value by 63360 to get the equivalent in inches. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.

If you need the opposite direction, use the Inches to Miles converter instead of dividing by hand; both pages use the same source factors. For every other mi conversion in one place, see the mi conversion hub.

Frequently asked questions

How many inches are in 1 mile?
1 mile = 63360 in.

What is 100 miles in inches?
100 mi = 6336000 in.

Is converting miles to inches the same as inches to miles?
No — the direction changes the multiplier. The reverse conversion (1 in = 1.5783e-5 mi) is on the Inches to Miles page.

Related conversions

Try the ConvBolt Unit Converter for any other length unit, browse the Length conversions, or read our conversion guides.