How to Calculate Poker Odds
What is Poker Odds?
Poker odds calculators determine the probability of winning a hand or completing a drawing hand using combinatorics to count winning outcomes relative to total possible outcomes in a deck.
Formula
Step-by-Step Guide
- 1Preflop equity = percentage of hands won across all simulated run-outs
- 2Outs = unseen cards that complete your drawing hand
- 3Rule of 4: multiply outs by 4 on the flop for % chance to hit by river
- 4Rule of 2: multiply outs by 2 on the turn for % chance to hit river
Worked Examples
Frequently Asked Questions
What is Poker Odds?
Poker odds calculators determine the probability of winning a hand or completing a drawing hand using combinatorics to count winning outcomes relative to total possible outcomes in a deck. Use this calculator for accurate, instant results.
How accurate is the Poker Odds calculator?
The calculator uses the standard published formula for poker odds. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Poker Odds calculator use?
This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Poker Odds calculator use?
The core formula is: Preflop equity = percentage of hands won across all simulated run-outs. Each step in the calculation is shown so you can verify the result manually.
Ready to calculate? Try the free Poker Odds Calculator
Try it yourself →