Mines Odds Calculator
Compare cumulative survival, bust risk and the chance of the final required click for any mine count and safe-pick target on a 25-tile board.
Mines probability table by safe-pick target
The table below is pre-filled for the default 3-mine setup and recalculates when you change the controls. It separates next-click probability from cumulative survival. Next-click values describe only the next reveal; cumulative values describe the full target before any tile is revealed.
Bust risk = 1 − P
Fair multiplier = 1 / P
| Safe picks | Next-click safe | Next-click mine | Cumulative survival | Cumulative bust | Fair odds | Fair multiplier |
|---|---|---|---|---|---|---|
| 1 | 88.00% | 12.00% | 88.00% | 12.00% | 1 in 1.14 | 1.1364x |
| 2 | 87.50% | 12.50% | 77.00% | 23.00% | 1 in 1.30 | 1.2987x |
| 3 | 86.96% | 13.04% | 66.96% | 33.04% | 1 in 1.49 | 1.4935x |
| 4 | 86.36% | 13.64% | 57.83% | 42.17% | 1 in 1.73 | 1.7293x |
| 5 | 85.71% | 14.29% | 49.57% | 50.43% | 1 in 2.02 | 2.0175x |
| 6 | 85.00% | 15.00% | 42.13% | 57.87% | 1 in 2.37 | 2.3736x |
| 7 | 84.21% | 15.79% | 35.48% | 64.52% | 1 in 2.82 | 2.8186x |
| 8 | 83.33% | 16.67% | 29.57% | 70.43% | 1 in 3.38 | 3.3824x |
| 9 | 82.35% | 17.65% | 24.35% | 75.65% | 1 in 4.11 | 4.1071x |
| 10 | 81.25% | 18.75% | 19.78% | 80.22% | 1 in 5.05 | 5.0549x |
| 11 | 80.00% | 20.00% | 15.83% | 84.17% | 1 in 6.32 | 6.3187x |
| 12 | 78.57% | 21.43% | 12.43% | 87.57% | 1 in 8.04 | 8.0420x |
| 13 | 76.92% | 23.08% | 9.565% | 90.43% | 1 in 10.45 | 10.455x |
| 14 | 75.00% | 25.00% | 7.174% | 92.83% | 1 in 13.94 | 13.939x |
| 15 | 72.73% | 27.27% | 5.217% | 94.78% | 1 in 19.17 | 19.167x |
| 16 | 70.00% | 30.00% | 3.652% | 96.35% | 1 in 27.38 | 27.381x |
| 17 | 66.67% | 33.33% | 2.435% | 97.57% | 1 in 41.07 | 41.071x |
| 18 | 62.50% | 37.50% | 1.522% | 98.48% | 1 in 65.71 | 65.714x |
| 19 | 57.14% | 42.86% | 0.8696% | 99.13% | 1 in 115.0 | 115.00x |
| 20 | 50.00% | 50.00% | 0.4348% | 99.57% | 1 in 230.0 | 230.00x |
| 21 | 40.00% | 60.00% | 0.1739% | 99.83% | 1 in 575.0 | 575.00x |
| 22 | 25.00% | 75.00% | 0.0435% | 99.96% | 1 in 2,300.0 | 2,300.0x |
Next-click probability describes only the next reveal. Cumulative survival describes the chance of reaching the row’s full safe-pick target from the start of the round.
What this Mines odds calculator shows
The page is built around probability-first Mines analysis. It does not focus on bet amount or payout planning; it focuses on the chance of reaching a safe-pick target and the risk of failing before that target.
Mines survival chance
Survival chance is the cumulative probability of revealing the selected number of safe tiles before hitting a mine. This is the main odds metric for any cashout target.
Mines bust risk
Bust risk is the opposite side of survival chance. If a setup has a 35% survival chance, the bust risk before reaching that target is 65%.
Next-click probability
Next-click probability only describes the next tile reveal after a certain number of safe picks. It should not be confused with the full chance of reaching a deeper target.
How Mines probability is calculated
Cumulative survival formula
Survival chance measures the probability of reaching the selected number of safe tiles without revealing a mine.
P = C(25 − M, s) / C(25, s)
M = number of mines
s = target safe picks
Per-click probability formula
The next-click probability changes after each safe reveal because fewer tiles remain on the board.
Remaining tiles = 25 − (k − 1)
Remaining safe = 25 − M − (k − 1)
Next safe chance = remaining safe / remaining tiles
Survival chance vs next-click odds
These two numbers are often confused. Next-click odds can remain relatively high while cumulative survival becomes much lower after several planned safe picks.
Next-click odds
Next-click odds describe only the immediate next reveal. If there are 20 safe tiles and 22 total tiles remaining, the next-click safe chance is 20 / 22.
Cumulative odds
Cumulative odds describe the full path to a target, measured from a fresh board. Reaching 5 safe picks is not the same as having a good chance on only the fifth click.
What the main probability metrics mean
The chance of completing the selected number of safe picks from the start of the round.
The probability that a mine appears before the selected safe-pick target is completed.
The zero-edge price of the target. A 50% chance has fair odds of 2.00x.
Nearest cashout row for a target multiplier
Closest table row
For the selected mine count, the calculator compares your target multiplier with available fair cashout points and estimates the closest safe-pick target.
Closest fair multiplier: 2.0175x. Survival chance: 49.57%.
Why closest does not mean safer
The closest row only shows which cashout point has the nearest fair multiplier. It does not recommend a click and does not identify a better tile.
Common mistakes when reading Mines probability
Mistake 1: confusing next-click chance with total risk
A next-click value can look comfortable even when the cumulative chance of reaching several safe picks is much lower.
Mistake 2: treating high odds as a signal
High odds do not mean the game is “ready” to pay. They mean the selected target is unlikely enough to justify a larger fair multiplier.
Mistake 3: believing in safe-tile predictors
An odds calculator cannot reveal hidden mine positions. A tool that claims to show future safe tiles is making a different claim than probability calculation.
Worked Mines probability examples
These examples use fair probability only. They do not include RTP-adjusted casino payouts.
3 mines and 5 safe picks
Survival chance is 49.57% and bust risk is 50.43%. The final required click has an 85.71% safe chance, while the fair multiplier for the full target is 2.0175x.
1 mine and 3 safe picks
Survival chance is 88.00% and bust risk is 12.00%. The third required click has a 95.65% safe chance, and the fair multiplier is 1.1364x.
10 mines and 10 safe picks
Survival chance falls to 0.0919%, so bust risk is 99.91%. The fair multiplier rises to 1,088.5x because the full target is extremely unlikely to be reached.
Related Mines tools
Use these pages to connect probability with payout, multiplier, RTP and strategy context.
FAQ
What are Mines odds?
Mines odds are the probabilities of reaching a chosen safe-pick target before a mine is revealed. They can be expressed as survival chance, bust risk, fair odds or fair multiplier.
Is this a Mines probability calculator?
Yes. This page calculates Mines probability for a 25-tile board, including cumulative survival chance, bust risk and next-click safe probability.
How do you calculate survival chance in Mines?
Survival chance is calculated as C(25 − M, s) / C(25, s), where M is the number of mines and s is the number of safe picks you want to reveal.
What is bust risk in Mines?
Bust risk is the probability that a mine appears before reaching your safe-pick target. It equals 1 minus the cumulative survival probability.
Are per-click odds and cumulative odds the same?
No. Per-click odds describe only the next tile reveal. Cumulative odds describe the chance of reaching the full target from the start of the round.
Can Mines odds predict the next safe tile?
No. Mines odds can describe probability, but they cannot identify hidden tile positions or predict the next safe tile in a properly random game.