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Convert miles to inches

1 mi = 63360 in

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Questions

How many inches are in a mile?

One mile is 63360 inches. To convert any amount, multiply by 63360. Going the other way, one inch is 0.0000157828283 miles.

What is the formula to convert mi to in?

Multiply the mile figure by 63360. So in = mi × 63360. For a quick mental estimate, multiplying by about 63360 gets you within a percent or so, which is close enough for most everyday purposes.

What does a mile actually look like?

One mile is a comfortable 20-minute walk. The statute mile is exactly 1,609.344 metres, a consequence of the inch being fixed at 25.4 mm in 1959. It remains the road unit in the US and UK.

And what is a inch?

One inch is roughly the width of an adult thumb. The inch has been exactly 25.4 millimetres since 1959. Screen sizes, pipe diameters and tyre rims are still specified in inches almost universally.

Is this conversion exact?

Yes. Since the 1959 international yard and pound agreement, the imperial and metric systems are related by exact definitions rather than measurements — the inch is exactly 25.4 mm and the pound exactly 0.45359237 kg. Everything derived from those, including this conversion, is therefore exact. Round at the end rather than partway through, since rounding mi before converting introduces an error the conversion then multiplies.

About mi to in

How to convert miles to inches

Multiply by 63360. One mile is 63360 inches, and one inch is 0.0000157828283 miles.

in = mi × 63360

Worked example

10 mi = 633600 in. For a sense of scale, one mile is a comfortable 20-minute walk, and one inch is roughly the width of an adult thumb.

About the mile

The statute mile is exactly 1,609.344 metres, a consequence of the inch being fixed at 25.4 mm in 1959. It remains the road unit in the US and UK.

About the inch

The inch has been exactly 25.4 millimetres since 1959. Screen sizes, pipe diameters and tyre rims are still specified in inches almost universally.

Quick reference

milesinches
1 mi63360 in
2 mi126720 in
5 mi316800 in
10 mi633600 in
25 mi1584000 in
50 mi3168000 in
100 mi6336000 in
1000 mi63360000 in

Getting it right

This conversion is exact by definition, so the only limit on accuracy is how many digits you keep. Round at the end rather than partway through — rounding mi to a whole number before converting introduces an error that the conversion then multiplies.

Other length conversions

Convert inches back to miles, or pick any other pair with the full unit converter. Related: mi to km, mi to m, mi to cm.