# How To Calculate Raises In Poker

One of the most frequently asked questions in poker is how to calculate the size of a raise as a percentage of the pot. Fortunately, it’s a relatively straightforward calculation that can be done using a simple formula. Here’s how to do it.

**To calculate a raise as a percentage of the pot, follow these steps**

**Determine the size of the pot if you had called the most recent bet or raise.****Multiply that number by the percentage you want to raise.****Add the previous bet or raise.**

For example, let’s say the small blind bets 2bb (33%) into a 6bb pot, and the big blind wants to make a half-pot raise (50%). Here’s how to calculate the raise:

- Calculate the total pot as if the big blind had called:
*6 + 2 + 2 = 10bb* - Multiply by the percentage you want to raise:
**10bb x 50% = 5bb** - Add the initial bet:
**5bb + 2bb = 7bb**

**Therefore, if the big blind raises to 7bb, they have raised 50% of the pot.**

## Formulas

Here are some General formulas to calculate raise sizes:

- Pot-sized raise:
**100% Pot Raise = 3×Bet + Pot** - General formula:
**X% Pot Sized Raise = X% (2×Bet + Pot) + Bet**

## The Law of Raise Sizes

An X% pot-sized raise should always lay the same pot odds as an X% pot-sized bet.

To check your calculation, you can calculate your opponent’s pot odds facing the raise. A half-pot bet or raise should always yield pot odds of 3:1 or 25%. Checking the previous example:

- Villain needs to call:
**7 – 2 = 5bb more** - Pot after they call is:
**7 + 7 + 6 = 20bb** **Pot odds facing raise = amount to call / pot after they call = 5 / 20 = 25%**

Conversely, if you know the pot odds being laid, you can reverse-engineer the size of the previous bet or raise using this formula:

## Multipliers

Some players estimate raise sizes by multiplying the size of the bet by a certain amount; this method is inconsistent with game theory. To lay the same odds, you need to use a much larger multiple against a small bet and a smaller multiple against a large bet. To simplify things, we’ve created a cheat sheet you can use.

GTO Wizard the #1 App for Poker players

**Author**

#### Tombos21

Tom is a long time poker theory enthusiast, GTO Wizard coach and YouTuber, and author of the Daily Dose of GTO.