How Many Poker Buy-Ins Do You Need?
Most players want one number. The honest answer is: it depends on what you play.
As a practical starting point, many players can think in ranges: live cash games often need a shallower bankroll than online cash, and tournaments need a much deeper roll than either. But those are starting points, not personalized answers. Your actual bankroll requirement depends on your win rate, your variance, your stake, and how aggressively you want to take shots.
If you want the exact version instead of the rule-of-thumb version, run your numbers through Poker Shark’s free bankroll calculator.
By Poker Shark
Quick Answer: Recommended Buy-In Ranges
Use these as starting ranges, not hard laws:
| Format | Aggressive | Standard | Conservative |
|---|---|---|---|
| Live cash games | 20 buy-ins | 30 buy-ins | 40 buy-ins |
| Online cash games | 30 buy-ins | 40 buy-ins | 60 buy-ins |
| Sit & Gos | 30 buy-ins | 50 buy-ins | 75 buy-ins |
| MTTs | 75 buy-ins | 100 buy-ins | 150+ buy-ins |
If your edge is small, your sample is noisy, or you play higher-variance formats, lean conservative.
Why There Isn’t One Perfect Number
“Twenty buy-ins” is not useless advice. It is just incomplete.
Two players can sit in the same game with the same bankroll and have very different risk levels. A strong live player in a soft $1/$2 game can survive with a shallower roll than an online player grinding tougher pools for a thin edge. A tournament player can need far more buy-ins than either because long stretches without a meaningful cash are normal.
That is why bankroll management works best in two layers:
- Use format-based buy-in ranges as a safe default.
- Use your own numbers to personalize the answer.
The default gets you in the ballpark. The math gets you closer to the truth.
Cash Games vs Tournaments: Why the Number Changes
Cash games are usually the lowest-variance way to play poker. You can reload, leave whenever you want, and your edge shows up more smoothly over time.
Tournaments are different. You put up your whole buy-in at the start, most entries end in a full loss, and the biggest share of profit often comes from a small number of deep runs. That is why tournament bankrolls need to be much deeper.
There is also a big difference between live and online.
Live games are often softer, slower, and lower volume. Online games are faster, tougher, and produce more hands in less time, which means variance can hit you much harder in a short window. That is why online bankroll management usually needs to be stricter.
What Actually Determines Your Bankroll Requirement
The biggest factors are simple:
Win rate — The more you beat the game, the easier it is to recover from downswings.
Variance — Some formats and player pools are just swingier. A roll that feels safe in one environment can feel thin in another.
Volume — The more hands or tournaments you play, the more chances variance has to test your bankroll.
Risk tolerance — Some players are comfortable taking aggressive shots. Others would rather grow slower and sleep better.
This is why bankroll management is really about risk of ruin: the chance that your bankroll hits zero before your edge has enough time to show up.
Why “20 Buy-Ins” Is Not Wrong — Just Incomplete
The problem with rules of thumb is not that they are fake. It is that they hide the variables that matter most.
At 100NL, a full buy-in is $100. A 20-buy-in bankroll is $2,000. That might be fine for one player and reckless for another.
If you win at a healthy clip and your swings are modest, $2,000 may be enough. If your edge is small and your results are volatile, the exact same bankroll can be too aggressive.
That is why a fixed number should be your default, not your conclusion.
Examples by Stake
Practical examples make this easier.
$1/$2 Live Cash
Assume a standard 100 big blind buy-in of $200.
- 20 buy-ins = $4,000
- 30 buy-ins = $6,000
- 40 buy-ins = $8,000
If your local game is soft and you have a real edge, the middle of that range can be reasonable. If the game plays deep or your results are inconsistent, go higher.
$0.25/$0.50 Online Cash
Assume a 100 big blind buy-in of $50.
- 30 buy-ins = $1,500
- 40 buy-ins = $2,000
- 60 buy-ins = $3,000
Online swings tend to come faster, so this is usually a spot to avoid the aggressive end unless you have a strong sample and a stable win rate.
$11 MTTs
- 75 buy-ins = $825
- 100 buy-ins = $1,100
- 150 buy-ins = $1,650
If you mostly play large-field, turbo, or bounty formats, the conservative end is safer.
When to Move Up — and When to Move Down
Moving up is not about feeling ready. It is about having the bankroll and the results to support the jump.
A practical approach looks like this:
- Move up when you have enough buy-ins for the next level and a proven edge at your current one.
- Move down when your bankroll no longer supports your current game.
- Do not let ego turn a temporary shot into a permanent leak.
If you want to see this visually, Poker Shark’s Bankroll Risk Analyzer includes a stake ladder that shows when you have enough buy-ins for the next level and how much room you really have.
Use a Calculator When You Want the Real Answer
Rules of thumb are great for choosing a safe default. They are not great for answering your actual bankroll question.
If you know your win rate, standard deviation, bankroll, stake, and hand horizon, you can do better than guessing.
Poker Shark’s bankroll calculator lets you plug in your numbers and see:
- your risk of ruin
- 1,000 Monte Carlo bankroll paths
- projected confidence intervals
- a variance chart
- estimated downswing duration in sessions and weeks
- how sensitive your bankroll is if your true win rate is lower than you think
- a stake ladder for moving up
That makes it useful in exactly the spots where generic bankroll advice breaks down: shot-taking, borderline bankroll spots, and uncertain win rates.
What If You Don’t Know Your Win Rate Yet?
That is common, especially for newer players or anyone with a small sample.
If you do not trust your win rate estimate, use the standard or conservative range. Assume reality is a little worse than your best run suggests. That is not pessimism. It is bankroll discipline.
And if you want to improve the win-rate side of the equation instead of just forcing bigger shots, spend more time on poker training, poker practice, and hand review. A better edge reduces bankroll stress more effectively than wishful thinking.
FAQ
Is 20 buy-ins enough for poker?
Sometimes. It can be a workable lower bound for softer live cash games if you have a real edge and are comfortable moving down quickly. It is much thinner for online cash and too aggressive for most tournament schedules.
How many buy-ins do you need for tournaments?
A practical starting point is usually 75 to 150+ buy-ins, with larger-field and faster formats pushing you toward the conservative end.
Do you need more buy-ins for online poker than live poker?
Usually, yes. Online games are faster, tougher, and higher-volume, which means swings show up faster and bankroll requirements are often stricter.
What is risk of ruin in poker?
Risk of ruin is the chance that your bankroll hits zero before your long-term edge has enough time to show up. It is the real reason bankroll management matters.
The Bottom Line
The short answer is not one number. It is a range.
Use format-based buy-in ranges to choose a safe default. Then use your actual numbers to personalize the answer. If you want to know whether your bankroll is solid, fragile, or too aggressive for the games you play, stop guessing and run your bankroll through the calculator.