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Speed converter

foot per second to nautical mile per second

Convert foot per second (ft/s) to nautical mile per second (nmi/s). Use an editable speed converter, conversion formula, and reference table.

0.0001645788337

1 ft/s = 0.0001645788337 nmi/s

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Conversion formula

nmi/s = ft/s × 0.0001645788337

One foot per second equals 0.0001645788337 nautical mile per second. Multiply your value in foot per second by this factor to get nautical mile per second. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 foot per second:
5 × 0.0001645788337 = 0.0008228941685 nmi/s

Conversion table

foot per second (ft/s)nautical mile per second (nmi/s)
0.010.000001645788337
0.10.00001645788337
10.0001645788337
20.0003291576674
50.0008228941685
100.001645788337
250.004114470842
500.008228941685
1000.01645788337
10000.1645788337

About these measurements

Speed is distance traveled per unit of time.

The base reference used here is the meter per second. One foot per second is 0.3048 base units; one nautical mile per second is 1,852 base units.

Important distinctions

Mach is excluded because the speed of sound depends on medium and temperature.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert ft/s to nmi/s?

Multiply the quantity in ft/s by 0.0001645788337. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the nautical mile per second to foot per second converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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