# Inch per second

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{{Short description|Unit of speed or velocity}}
The '''inch per second''' is a [unit](/source/physical_unit) of [speed](/source/speed) or [velocity](/source/velocity). It expresses the [distance](/source/distance) in [inch](/source/inch)es (in) traveled or displaced, divided by [time](/source/time) in [second](/source/second)s (s). The corresponding [coherent](/source/Coherence_(units_of_measurement)) [SI](/source/International_System_of_Units) unit is the [metre per second](/source/metre_per_second).<ref name="efunda"/>

Abbreviations include '''in/s''',<ref name="efunda">{{cite web |url=http://www.efunda.com/glossary/units/units--velocity--inch_per_second.cfm |title=Velocity Units: Inch Per Second |publisher=efunda |accessdate=2011-12-27}}</ref> '''ips''',<ref name="efunda"/> and less frequently, '''in⋅s<sup>−1</sup>'''.

== Conversions ==
1&nbsp;inch per second is:
: =&nbsp;0.0254&nbsp;[metres&nbsp;per&nbsp;second](/source/metres_per_second) (exactly)
: =&nbsp;{{fraction|1|12}} or 0.08<span style="text-decoration: overline;">3</span>&nbsp;[feet&nbsp;per&nbsp;second](/source/feet_per_second) (exactly)
: =&nbsp;{{fraction|5|88}} or 0.056<span style="text-decoration: overline;">81</span>&nbsp;[miles&nbsp;per&nbsp;hour](/source/miles_per_hour) (exactly)
: =&nbsp;0.09144&nbsp;[kilometres per hour](/source/kilometre_per_hour) (exactly)

Conversion to inches per second:
: 1&nbsp;[metre per second](/source/metre_per_second) ≈ 39.370079&nbsp;inches per second (approximately)
: 1&nbsp;[foot per second](/source/foot_per_second) = 12&nbsp;inches per second (exactly)
: 1&nbsp;[mile per hour](/source/mile_per_hour) = 17.6&nbsp;inches per second (exactly)
: 1&nbsp;[kilometre per hour](/source/kilometre_per_hour) ≈ 10.936133&nbsp;inches per second (approximately)

== Uses ==
In [magnetic tape sound recording](/source/magnetic_tape_sound_recording), [magnetic tape](/source/magnetic_tape) [speed](/source/speed) is often quoted in inches per second (abbreviated "ips").

In [computer mice](/source/Mouse_(computing)) sensitivity is also often referred to in inches per second (abbreviated as "ips").

In [rotorcraft](/source/rotorcraft) health monitoring, rotor and shaft induced vibration levels are often quoted in inches per second.

== References ==
{{reflist}}

{{DEFAULTSORT:Inch Per Second}}
Category:Units of velocity

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Adapted from the Wikipedia article [Inch per second](https://en.wikipedia.org/wiki/Inch_per_second) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Inch_per_second?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.