poker probability calculator

Calculate your equity and drawing odds instantly

Number of Outs: Cards that improve your hand.

Current Situation:

Understanding Poker Probability

In Texas Hold'em, knowing your "outs" is the foundation of mathematical poker strategy. An out is any card left in the deck that will likely improve your hand to a winning one. For example, if you hold two hearts and the flop has two hearts, there are 9 hearts remaining in the deck (13 total hearts – 2 in hand – 2 on board) that will give you a flush.

The Rule of 2 and 4

Professional players often use a shortcut called the "Rule of 2 and 4" to estimate equity:

On the Flop: Multiply your outs by 4 to see the probability of hitting your hand by the River.
On the Turn: Multiply your outs by 2 to see the probability of hitting your hand on the River.

This calculator provides the precise mathematical calculation, which is slightly more accurate than the Rule of 2 and 4, especially when you have a large number of outs.

Common Outs Reference

Hand Drawing To	Outs
Flush Draw	9
Open-Ended Straight Draw	8
Inside Straight (Gutshot)	4
Two Overcards to Top Pair	6

Reviewed by: David Chen, MBA (Educational Strategy)

The best calculator for SAT test prep. Use this predictive tool to estimate your final SAT score based on your current baseline and your dedicated weekly study commitment. Plan your study schedule effectively to hit your target score of 1600.

SAT Score Projection Calculator

SAT Score Projection Formula

The simplified model uses the following linear relationship, assuming a rate ($R_{rate}$) of 1 point gain per hour of dedicated study (total hours). $F$ is capped at 1600.


F = B + (H * W * R_rate)

Where:

F = Projected Final Score
B = Baseline Score
H = Weekly Practice Hours
W = Study Period in Weeks
$R_{rate}$ = Score Improvement Rate (set to 1 point/hour in this calculator)

Formula Sources: PrepScholar Study Guide | The Princeton Review Planning

Variables

Baseline Score (B): Your most recent official or full-length practice test score.
Weekly Practice Hours (H): The number of hours you realistically commit to studying the SAT each week.
Study Period (W): The total number of weeks until your official test date.
Projected Target Score (F): The score you aim to achieve, or the result calculated by the tool.

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What is the SAT Score Projection Calculator?

This calculator provides a quantitative estimate of the score improvement you can expect to see on the SAT given your current performance and the time you dedicate to studying. It is based on a simple, empirical model: the more focused, quality time you put in, the higher your score is likely to climb, up to the maximum score of 1600.

While no calculator can perfectly predict human learning, this tool is invaluable for setting realistic goals and structuring your study plan. By playing with different scenarios—e.g., increasing your weekly hours or extending your study weeks—you can determine the level of commitment required to reach your desired college admissions goal.

How to Calculate Your Projected SAT Score (Example)

Establish Baseline: Take a full, timed practice test and score it. (e.g., Baseline Score $B = 1250$).
Determine Study Hours: Decide on a consistent weekly study time. (e.g., Weekly Hours $H = 12$ hours).
Define Study Period: Calculate the remaining weeks until test day. (e.g., Study Weeks $W = 10$ weeks).
Calculate Total Improvement: Multiply total study hours by the improvement rate ($R_{rate}=1$). Total Improvement $= 12 \times 10 \times 1 = 120$ points.
Find Projected Score: Add the improvement to the baseline score. Projected Score $= 1250 + 120 = 1370$.
Analyze: Compare the result (1370) to your target and adjust $H$ or $W$ if needed to reach your goal.

Frequently Asked Questions (FAQ)

Is the 1 point/hour rate accurate for everyone?
The $R_{rate}=1$ is an average used for a simple model. Highly efficient, focused students might see a higher rate, while students using less structured study methods might see a lower rate. Use this calculator as a guideline, not a guarantee.

Can the calculator solve for the required study time?
Yes. If you input your Baseline Score, Study Weeks, and your Projected Target Score, the calculator will solve for the minimum Weekly Practice Hours required to achieve that goal.

What happens if my projected score is over 1600?
The formula result is capped at 1600, as this is the maximum possible SAT score. The calculation steps will show the theoretical, uncapped result, but the final result will always be 1600.

Why did I get an error when I filled in all four fields?
The calculator requires *exactly* one field to be left blank. If you fill all four, it performs a consistency check to see if your inputs logically match the formula. If they don't, it will show an inconsistency error.

Poker Probability Calculator