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Poker 3-Bet Calculator

Calculate optimal 3-bet sizing based on position and open raise size. Get position-adjusted recommendations for poker 3-bet strategy.

Formula:IP: 2.5x open | OOP: 3.5x open

3-Bet Sizing Inputs

Enter the situation details

$

Opponent's raise amount

$

Total blinds in pot

Position relative to raiser

$

Smaller of both stacks

Recommended 3-Bet Size

Optimal sizing for your position

Recommended 3-Bet

$15

2.5x the open

Sizing Range

$13 - $24

acceptable range

Pot After 3-Bet

$24

if opponent calls

SPR After Call

7.7

Medium SPR

Sizing Context

3-Bet as % of Pot:167%
Position:In Position
Multiplier Used:2.5x

Post-Flop Implications

Medium SPR (SPR: 7.7)

Typical postflop play. Balance between value and protection.

Sizing Adjustments

Size UP when:

  • Villain calls too wide (punish their range)
  • There are cold callers behind
  • Playing against recreational players
  • You have a value-heavy range
  • Board textures favor you postflop

Size DOWN when:

  • Villain 4-bets too much (keep pots smaller)
  • You want playability postflop
  • You have more bluffs in range
  • Effective stacks are shallow
  • Villain only continues with strong hands

Try These Examples

Common 3-bet scenarios

3-Bet Range Guide

Recommended hand ranges for different strategies

Value 3-Bet Range

Hands strong enough to 3-bet for value and continue vs 4-bet:

AAKKQQAKsAKo

Bluff 3-Bet Range (Polarized)

Hands with blockers and playability for 3-bet bluffs:

A5sA4sA3sA2sK5sK4s76s65s54s

Linear 3-Bet Range (vs Calling Stations)

When opponents call too much, 3-bet a wider value range:

AAKKQQJJTTAKsAKoAQsAQoAJsKQs

Quick Answer

TL;DR summary

Standard 3-bet sizing: 2.5x the open raise when in position, 3.5x when out of position. For a $10 open with $1.5 blinds, 3-bet to $25-$35 depending on position.

Key Facts About 3-Betting

Important things to know

  • In Position (IP): 3-bet 2.5x the open raise
  • Out of Position (OOP): 3-bet 3.5x the open raise
  • Against loose players: Size up 10-20%
  • Against tight players: Size down or go smaller
  • Small blinds 3-betting vs BB: Add 1 BB to standard size
  • Sizing should create commitment or fold equity

Frequently Asked Questions

Common questions about 3-betting

What is a 3-bet in poker?

A 3-bet is the third raise in a betting sequence. The blinds are the first "bet," an open raise is the 2nd bet (2-bet), and a re-raise is the 3-bet. For example: blinds posted ($1/$2), player raises to $6 (2-bet), another player re-raises to $18 (3-bet).

Why does position affect 3-bet sizing?

When out of position (OOP), you need to size larger (3.5x+) to deny the in-position player good odds to call and realize their equity post-flop. In position (IP), you can size smaller (2.5x) since you'll have the advantage of acting last on every street.

How do I adjust 3-bet sizing vs different player types?

Against loose players who call too much, size up 15-25% to punish their wide calling range. Against tight players, you can size down slightly since your 3-bet represents more strength. Against aggressive 4-bettors, consider using a polarized range with larger sizes for value and smaller sizes as bluffs.

What is a polarized vs linear 3-betting range?

A polarized range 3-bets premium hands (AA, KK, AK) and bluffs (suited connectors, suited aces). A linear range 3-bets a continuous range of strong hands. Use polarized ranges against players who don't call 3-bets enough; use linear ranges against calling stations.

When should I 3-bet for value vs as a bluff?

3-bet for value with premium hands (AA-QQ, AK) that play well against calling ranges. 3-bet as a bluff with hands that have blockers to premium hands (A5s, A4s block AA/AK) and good playability if called. Your bluff 3-bets should fold out worse hands and have backup equity when called.