What Is M-Ratio In Poker?
M-ratio is a concept that allows poker players to determine how many rounds of blinds they or their opponents can survive before losing the entire stack.
It is a simple calculation that uses the player’s stack size and the current level of the blinds to visualize how long a player can last in the tournament if he does not voluntarily put any money in the pot.
The formula for calculating M-ratio in poker tournaments is:
M = (Player's stack size) / (Current big blind + small blind + antes)
A high M-ratio indicates that a player has a healthy stack that will allow him to wait for good poker hands. On the other hand, a low M-ratio indicates that the player’s stack is shallow and that he will need to widen his ranges and play more aggressively to survive. The concept is similar to SPR.
Poker M-Ratio Example:
Let’s say that you are playing in a poker tournament. The big blind is $1,000, the small blind is $500, and the ante is $100 with 8 players. You have $10,000 in your stack and want to see if it is time to increase your aggression, so you use the M-ratio concept.
M = 10,000 / (1,000 + 500 + 100 x 8)
M = 10,000 / 2,300
M = 4.35