Feet to miles converter

Read a quantity in ft, then express the same length in mi. The units are defined below to avoid mixing similarly named standards.

Direct example

1 ft ≈ 0.000189393939394 mi.

Formula and calculation

mi = ft × 0.000189393939394

Substituting 1 ft gives approximately 0.000189393939394 mi. Definitions use the constants above; arithmetic uses browser floating point and displays at most 12 significant digits. The rounded table is not an instrument calibration or certified measurement.

Which units does this page use?

feet: international foot: 0.3048 metres, not the obsolete US survey foot.

miles: international statute mile: 1,609.344 metres, not a nautical mile.

When this direction is useful

Start here when your source record uses ft for property specifications and height measurements, but the receiving specification is expressed in mi for road-distance signs and international travel. Enter the original quantity rather than reusing a previously rounded result. If your source uses mi, use the reverse converter instead.

Conversion table

Approximate displayed values, with the same definitions as the converter
feet (ft)	miles (mi)
0	0
1	0.000189393939394
5	0.00094696969697
10	0.00189393939394
100	0.0189393939394

Limits and interpretation

These are non-negative physical quantities; negative inputs are rejected. Converting a unit changes neither the measured object nor the original precision. Use a decimal dot; grouping commas are not accepted. No external rates, live data or account are involved.

Frequently asked questions

Can I convert the other way?

Yes. Convert miles to feet with the inverse equation. Rounding a result before converting it back can introduce a small difference.

Are these the same as every similarly named unit?

No. Check the two definitions above. International length, avoirdupois mass, US customary liquid measures and temperature readings are explicitly distinguished; an ambiguous label on a source document must be resolved first.

Where do the conversion definitions come from?

They use SI and defined customary conversion relationships. See the NIST Guide for the Use of SI. Output formatting is this tool's display policy, not extra measurement accuracy.