BB per hour is the standard win-rate metric for live poker: take your net profit for a session, divide by hours played, then divide by the big blind size. The result tells you how many big blinds you earn per hour of play, and that number means the same thing at $1/$2 as it does at $5/$10.
The Formula
The exact calculation is:
bb/hour = (net profit ÷ hours played) ÷ big blind size
Walk through one session. You sit down at a $1/$2 game for five hours and finish up $150.
- Net profit: $150
- $/hour: $150 ÷ 5 = $30/hour
- bb/hour: $30 ÷ $2 = 15 bb/hour
That is all there is to it. The big blind is the natural unit of the game: every bet, raise, and pot is already sized in big blinds at the table. Reporting your win rate in the same unit keeps the number grounded in what actually happened.
Why Raw Dollars Mislead When You Move Stakes
Here is the problem with stopping at dollars per hour. A $2/$5 player who wins $40/hour looks better on paper than a $1/$2 player who wins $30/hour. But watch what happens when you convert both to bb/hour:
| Stakes | $/hour | Big blind | bb/hour |
|---|---|---|---|
| $1/$2 | $30 | $2 | 15.0 |
| $2/$5 | $40 | $5 | 8.0 |
| $5/$10 | $60 | $10 | 6.0 |
The $1/$2 player at 15 bb/hour is performing nearly twice as well relative to the game's stakes as the $2/$5 player at 8 bb/hour. The $2/$5 player is beating bigger blinds for fewer big blinds, which could mean the game is tougher, the player has moved up too fast, or both.
This normalization matters most when you are deciding whether to move up. If your bb/hour drops sharply after a stake jump, the bigger game is eating into your edge, regardless of what your dollar total looks like. For more context on what these numbers should look like, see what's a good win rate in live poker.
BB Per Hour vs. BB Per 100 Hands
Online players track win rate as bb/100 hands: big blinds won per 100 hands dealt. That works online because tracking software counts every hand automatically, and online players see 60–100 hands per hour or more.
Live poker breaks that model. A typical live cash game deals roughly 25–30 hands per hour, but the actual count swings based on the dealer, the number of players at the table, how many multi-way pots go to showdown, and whether a floor call slows things down. You cannot reliably count live hands without dedicated tracking equipment or a hand-count app running alongside you.
Hours, on the other hand, are trivial to capture. You know when you sat down and when you racked up. That is why the live poker standard is bb/hour, not bb/100. It trades the precision of a hand count for data you can actually collect consistently.
The tradeoff is real: two players with identical skill can post different bb/hour numbers just because one plays in loose, passive games where pots resolve quickly and another grinds tighter tables with slower action. Hands per hour is baked into the denominator even if you are not measuring it directly. This is part of why win-rate estimates need a lot of hours before they stabilize. More on that at how many hours until you can trust your win rate.
What You Need to Capture Per Session
A bb/hour calculation is only as good as the inputs. Four pieces of data matter:
- Session start and end time. Clock in when you take your seat, clock out when you leave the table, not when you arrive at the casino or when you eat dinner. Time away from the table is not time in the game.
- Stakes. Record both blinds ($1/$2, $2/$5, etc.). If you move to a different table at different stakes mid-session, the cleanest approach is to log them as separate sessions.
- Net profit or loss. What you cashed out minus what you bought in for. If you rebought, the full buy-in total is the cost basis, not just the first buy-in.
- Location (optional but useful). Some venues consistently run softer or tougher games. Tracking the room lets you spot patterns across venues over time.
Nothing else is strictly required to compute bb/hour. Tip and rake data can refine your picture of true win rate versus observed win rate, but the core calculation stands without it.
Common Mistakes That Corrupt the Number
A few habits will quietly wreck your bb/hour even when the arithmetic is right:
- Logging only winning sessions. This is the most damaging error. If you write down the nights you left up and forget the ones you drove home from in silence, your win rate is a fiction. Every session goes in the log: winning, losing, or breakeven.
- Rounding hours generously. "I played for about five hours" often means four hours and twenty minutes, which is about a 15 percent error in the denominator. Small distortions compound across a hundred sessions. Log the actual time.
- Mixing stakes into one blended number. If you play $1/$2 on Tuesdays and $2/$5 on weekends, averaging your bb/hour across both pools hides whether you are actually beating the bigger game. Keep stakes separate until you have enough data at each level to evaluate them independently (at least a few hundred hours per stake). Use a win rate confidence calculator to see how wide your confidence interval still is.
- Ignoring short-session variance. A single five-hour session can land almost anywhere (a big heater or a deep hole) without telling you much. The signal only emerges from the aggregate. One outlier session, good or bad, should not change how you assess your game.
- Including time you were not in the game. Dinner breaks, floor-call waits of twenty minutes, or the time you watched a hand from the rail: none of that is playing time. Inflate the hours denominator with dead time and your win rate will be understated in a way that feels like bad luck but is really bad record-keeping.
A Realistic Benchmark
For live cash games, a genuinely winning recreational player might run 3–5 bb/hour. A strong regular beating a beatable lineup might sustain 8–12 bb/hour over a large sample. Numbers above 15 bb/hour over hundreds of hours are exceptional. Not impossible, but rare enough that they warrant a close look at sample size before you trust them. The key phrase is over a large sample: short-run bb/hour can look almost arbitrarily good or bad.
Variance in live poker is high. Standard deviation for a typical live cash session runs somewhere between 60 and 100 big blinds per hour, depending on game type and stack depth. That means a player running 8 bb/hour is still going to lose sessions, and lose them regularly. The win rate only becomes visible over many hundreds of hours of data.
How PokerCharts Helps
PokerCharts computes bb/hour automatically whenever you log a session. Just enter your start and end time, stakes, and result. The number appears without any manual calculation. You can view your bb/hour per stake, per venue, and over rolling time windows, which makes it straightforward to see whether a move up in stakes is holding or whether a particular room is actually softer than your home game.
PokerCharts is free for your first 10 sessions, which is enough to get a feel for how the tracking works. After that, it runs $1.99 per month billed annually ($23.95 per year). There is no upsell tier; every feature is included at that price.