Foot per second (ft/s)

Definition

Feet travelled per second, exactly 0.3048 m/s.

History

The foot per second pairs the imperial foot with the second, and has long been used in mechanics and ballistics. It equals exactly 0.3048 meters per second.

Where it is used

Feet per second appear in physics problems and in ballistics, where muzzle velocities are often quoted this way.

Typical uses include ballistics, physics problems.

Conversion pages

These pages convert foot per second to or from another unit in speed.

No conversion pages use this unit yet.

Other Speed units

• Kilometer per hour (km/h)
• Mile per hour (mph)
• Meter per second (m/s)
• Knot (kn)

Sources

• NIST HB 44 NIST Handbook 44, Appendix C (Tables of Equivalents — international nautical mile); speeds derived from the exact mile, foot and hour · Dataset reviewed Nov 11, 2026