In 1 millimeter / square hour there is 0 gal.

centigal centigalileo centimeter / square hour centimeter / square minute centimeter / square second [cm / s²] foot / (hour minute) [fph / min] foot / (hour second) [fph / s] foot / (minute second) [fpm / s] foot / square hour [ft / hr²] foot / square minute [ft / min²] foot / square second [ft / s²] gal galileo [Gal] gravity [g] g-units [G] inch / (hour minute) [iph / min] inch / (hour second) [iph / s] inch / (minute second) [ipm / s] inch / square hour [in / hr²] inch / square minute [in / min²] inch / square second [in / s²] kilogal kilogalileo kilometer / square hour kilometer / square minute kilometer / square second [km / s²] knot / hour [kn / hr] knot / millisecond [kn / ms] knot / minute [kn / min] knot / second [kn / s] meter / square hour [m / hr²] meter / square minute [m / min²] meter / square second [m / s²] mile / (hour minute) mile / (hour second) mile / (minute second) mile / square hour [mi / hr²] mile / square minute [mi / min²] mile / square second [mi / s²] milligal milligalileo millimeter / square hour millimeter / square minute millimeter / square second [mm / s²]

centigal centigalileo centimeter / square hour centimeter / square minute centimeter / square second [cm / s²] foot / (hour minute) [fph / min] foot / (hour second) [fph / s] foot / (minute second) [fpm / s] foot / square hour [ft / hr²] foot / square minute [ft / min²] foot / square second [ft / s²] gal galileo [Gal] gravity [g] g-units [G] inch / (hour minute) [iph / min] inch / (hour second) [iph / s] inch / (minute second) [ipm / s] inch / square hour [in / hr²] inch / square minute [in / min²] inch / square second [in / s²] kilogal kilogalileo kilometer / square hour kilometer / square minute kilometer / square second [km / s²] knot / hour [kn / hr] knot / millisecond [kn / ms] knot / minute [kn / min] knot / second [kn / s] meter / square hour [m / hr²] meter / square minute [m / min²] meter / square second [m / s²] mile / (hour minute) mile / (hour second) mile / (minute second) mile / square hour [mi / hr²] mile / square minute [mi / min²] mile / square second [mi / s²] milligal milligalileo millimeter / square hour millimeter / square minute millimeter / square second [mm / s²]