Blackjack Session Bankroll Calculator

Calculate the optimal bankroll for your blackjack session based on bet size, session length, and risk tolerance. Know exactly how much to bring to the table.

Formula:Bankroll = (σ × Risk Multiplier) + Expected Loss

Recommended Bankroll

$1623

65 units

Minimum Bankroll

$759

30 units

Expected Loss

$40.00

Tap Out Risk

0.0%

$

Your standard bet size

60-100 typical for table play

How long you plan to play

%

0.4-0.6% with basic strategy

How much risk can you accept?

What kind of session are you planning?

Bankroll Recommendations

Minimum
$759
30 units
Higher tap out risk
Recommended
$1623
65 units
Balanced risk/reward
Comfortable
$2434
97 units
Low stress play

Session Expectations

Total Hands
320
Total Action
$8,000
Expected Loss
$40.00
95% Worst Case
$999

Confidence Assessment

Very High - Unlikely to tap out

With $1623 bankroll, there's a 0.0% chance of tapping out during this session.

Session Simulator

Monte Carlo simulation with 1,000 iterations

$

Your initial capital

%

Your expected advantage

%

Percentage of bankroll per bet

Total bets to simulate

Key Facts

  • •Session bankroll should be separate from your total gambling bankroll
  • •30-50 betting units is the minimum for comfortable play
  • •Longer sessions need proportionally more bankroll
  • •Expected loss is only part of the equation - variance is bigger
  • •95% of sessions stay within 2 standard deviations of expected

Frequently Asked Questions

How much bankroll do I need for a blackjack session?

A general rule is 30-50 betting units for a comfortable session. For a 4-hour session at $25/hand, you'd want $750-$1,250. The exact amount depends on your risk tolerance and how long you plan to play.

What is the risk of going broke during a blackjack session?

With proper bankroll management (30+ units), your risk of tapping out in a typical session is under 5%. Shorter sessions with 50+ units have very low risk. The variance calculator helps quantify your specific risk.

Should I bring my entire gambling bankroll to each session?

No. Only bring your session bankroll - the amount calculated for that specific session. Keep your overall bankroll separate. This prevents emotional decisions and ensures you have funds for future sessions.

How does session length affect bankroll needs?

Longer sessions require proportionally more bankroll because variance compounds over time. A 4-hour session needs roughly 1.4x the bankroll of a 2-hour session, not 2x, because standard deviation grows with the square root of hands.