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.
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
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:
Bluff 3-Bet Range (Polarized)
Hands with blockers and playability for 3-bet bluffs:
Linear 3-Bet Range (vs Calling Stations)
When opponents call too much, 3-bet a wider value range:
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.