Poker SPR Calculator
Compare the remaining effective stack with the current pot.
How it works
Stack-to-pot ratio divides the effective remaining stack by the current pot. For two players, the effective stack is the smaller amount still behind: chips already committed to the pot are not part of it.
With 100 behind for you, 60 behind for the opponent and 20 in the pot, the effective stack is 60 and SPR is 60 / 20 = 3.
Use stacks and pot from the same point in the hand, all in chips, cash or big blinds. This is a comparison against one opponent. SPR describes stack depth relative to the pot; it does not calculate equity or recommend an action.
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How the Poker SPR Calculator works
Stack-to-pot ratio divides the effective remaining stack by the current pot. For two players, the effective stack is the smaller amount still behind: chips already committed to the pot are not part of it.
Poker SPR Calculator
With 100 behind for you, 60 behind for the opponent and 20 in the pot, the effective stack is 60 and SPR is 60 / 20 = 3.
Use stacks and pot from the same point in the hand, all in chips, cash or big blinds. This is a comparison against one opponent. SPR describes stack depth relative to the pot; it does not calculate equity or recommend an action.
Using the smaller stack in the SPR formula
If you have 100 left and the opponent has 60, only 60 of each remaining stack can be matched against that opponent. Dividing your own 100 by a pot of 20 would give 5, but the effective stack-to-pot ratio is 60 / 20 = 3. Use amounts from the same moment in the hand, and exclude money already in the pot from both remaining stacks.
FAQ
Can I calculate SPR in big blinds instead of chips?expand_more
Yes. The ratio has no units. Converting both stacks and the pot by the same factor leaves SPR unchanged. Do not mix, for example, stacks in big blinds with a pot in chips.
How does SPR differ from pot odds?expand_more
SPR compares the remaining effective stack with the current pot. Pot odds compare a proposed call with the amount that can be won. An SPR value alone is not a win probability, required equity or instruction to call; use the separate pot odds or equity tool for those calculations.
Which stack should I enter in a multiway pot?expand_more
This calculator compares you with one chosen opponent. Repeat the calculation for each opponent using their remaining stack and the relevant current pot. A single result does not describe all effective stacks or settle separate side pots.