Acceleration has the dimension length per time squared. The SI composite unit of acceleration is the meter per second squared.

Maple knows the units of acceleration listed in the following table.

An asterisk ( * ) indicates the default context, an at sign (@) indicates an abbreviation, and under the prefixes column, SI indicates that the unit takes all SI prefixes, IEC indicates that the unit takes IEC prefixes, and SI+ and SI- indicate that the unit takes only positive and negative SI prefixes, respectively.  Refer to a unit in the Units package by indexing the name or symbol with the context, for example, gal[standard] or gn[standard]; or, if the context is indicated as the default, by using only the unit name or symbol, for example, gal or gn.

The units of acceleration are defined as follows.

An acceleration of free fall is defined as $9.80665$ meters per second squared.

A galileo, which has also been called the gal, is defined as $1$ centimeter per second squared.

$\mathrm{convert}\left(\frac{'m'}{{'s'}^2}\,'\mathrm{dimensions}'\,'\mathrm{base}'=\mathrm{true}\right)$

$\frac{\mathrm{length}}{{\mathrm{time}}^2}$

$\mathrm{convert}\left(1\,'\mathrm{units}'\,\frac{'m'}{{'s'}^2}\,'\mathrm{acceleration\_of\_free\_fall}'\right)$

$\frac{20000}{196133}$

$\mathrm{convert}\left(981.0\,'\mathrm{units}'\,\frac{'\mathrm{mi}'}{{'h'}^2}\,'\mathrm{galileo}'\right)$

$12.18184000$