Pot odds, solved.

The single most important number at the table — taught the way a coach would, with seven working calculators, a six-spot quiz, and the math behind every decision.

The whole thing, in one line
Required equity = cost to call pot + bet + cost to call
Memorize this fraction and the rest of the page shows you how to use it at the table. Every calculator below is a permutation of these three numbers.
Read me first

How this page works.

Three minutes here will save you twenty later. Every section answers one question and ships with a working tool — read top to bottom, or jump straight to the calculator.

Step 01
Learn the idea

One fraction. Required equity = cost / final pot. Everything below builds on this.

Step 02
Use the tools

Drop in real numbers. Calculators show what the answer looks like in practice.

Step 03
Test yourself

Six worked spots at the end. Get five right and you're ahead of the room.

A 60-second example

The whole idea, in one hand.

Click through the five steps below before touching a calculator. If this clicks, the rest of the page is just permutations.

The Intuition

Every call is a tiny bet.

When villain bets $50 into a $100 pot, you're not deciding "is my hand good?" — you're being offered a tiny side bet at 3-to-1 odds. Your hand only has to win 25% of the time to break even. Pot odds is the framework for evaluating that side bet against your hand's equity.

Core idea

If your equity exceeds the required equity, call. If it’s below, fold. Everything else on this page is detail.

TL;DR

Pot odds give you a number. Your hand’s equity gives you another number. Compare them. The decision falls out automatically.

The Calculator

Plug in real numbers.

Pre-set the most common bet sizes — 1/3 pot, 1/2 pot, 2/3 pot, pot, overbet — and see the required equity emerge live.

Calculator

The pot odds calculator

Foundational

Pot odds boil down to one ratio: cost to call vs. everything you stand to win. Drop in real numbers and watch the required equity emerge.

The Other Half

Counting outs.

Pot odds tell you the equity you need. Outs tell you the equity you have. Twelve common draws, the actual percentage, and the x2/x4 shortcut.

Calculator

Outs to equity, in one click

Core skill

An out is any unseen card that improves you to a likely winner. Pick a draw type — see the actual equity, then compare it to the famous x2 / x4 rule.

The Future Money

Implied odds.

The reason set-mining works. The reason calling pre-flop with 22 to flop a set is profitable when stacks are 100bb deep. Direct pot odds say fold. Implied odds say print.

Calculator

Implied odds — the missing variable

Advanced

Direct pot odds only count the money already in. Implied odds count the money you’ll win on later streets when you hit. They’re the reason set-mining for $4 to win $400 is correct.

Defending

Minimum Defense Frequency.

Pot odds is the caller's tool. MDF is its mirror — how often the defender has to call to make villain's bluff break even. Skip this and live players will eat you alive.

Theory

Minimum Defense Frequency

Advanced

The flip side of pot odds. MDF tells the defender how often they have to call to make villain’s bluff break-even. Below MDF, villain prints money bluffing. Memorize this column.

The Aggressor's Math

Bluff:value ratios.

When you bet for value, GTO requires you to bluff at a specific frequency. Bigger bets allow more bluffs; smaller bets demand fewer. This is why polarized = big and merged = small.

Theory

Bluff:value ratios on the river

Advanced

When you bet for value on the river, you also need to bluff at a specific frequency to make villain’s call break even. Bigger bets = more bluffs allowed.

Reference

The numbers, on one page.

Every common bet size, the pot odds, the ratio, and what to do. Print this page. Tape it to your monitor for two weeks. Then throw it away.

Reference

The cheatsheet to print

Reference

Every common bet size and the equity you need to call. Tape this to your monitor. After two weeks you won't need it.

What Goes Wrong

The eight common leaks.

Knowing the math is half the battle. Here's the half nobody talks about — the ways smart players still bleed money even after they understand pot odds.

Test Yourself

Six spots. How many can you solve?

Real-table math, no calculator. If you get 5+ right, you're already ahead of 90% of live players.

Three numbers. That’s it.

Pot odds is one fraction with three inputs. Once you have it, every interactive on this page is just an extension of the same idea.

01

Required equity

Bet / (pot + bet + bet). The minimum % your hand has to win to call profitably.

02

Your equity

Outs x 2 (turn) or x 4 (flop). Or use the table. Or count it: 9 outs = ~36% by the river.

03

Compare

Yours bigger = call. Yours smaller = fold. Implied odds bend the threshold; everything else is texture.