Q ratio (disambiguation)

Q ratio, also known as Tobin's q, is an economics term for the ratio between the market value and replacement value of the same physical asset.

Q ratio or Q-ratio may also refer to:
 * Q-ratio (poker), the relation of a poker player's stack to the tournament players' average stack
 * q-ratio in selection cutting in forestry
 * anabolic to androgenic ratio in pharmacology applications such as methasterone