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Mines calculator

Use this free Mines calculator to see the exact multiplier, win probability and payout for any round on SatoshiMines. Set the number of mines and how many safe tiles you plan to reveal — the numbers update instantly, using the same formula and 1% house edge as the live game.

3
1 (safer)24 (riskier)
3
1 tile22 (all safe tiles)
Multiplier
1.48×
Win chance
66.96%
Payout
1,478 sats
Profit
+478 sats

Multiplier at every step with 3 mines

Safe tiles revealedMultiplierChance of getting there
11.13×88.00%
21.29×77.00%
31.48×66.96%
41.71×57.83%
52.00×49.57%
62.35×42.13%
72.79×35.48%
83.35×29.57%
94.07×24.35%
105.00×19.78%
116.26×15.83%
127.96×12.43%
1310.35×9.57%
1413.80×7.17%
1518.98×5.22%
1627.11×3.65%
1740.66×2.43%
1865.06×1.52%
19114×0.870%
20228×0.435%
21569×0.174%
222,277×0.043%

How the Mines multiplier is calculated

The grid has N = 25 tiles. With m mines, after you reveal k safe tiles the fair multiplier is the product of (N − i) ÷ (N − m − i) for i = 0 … k − 1. SatoshiMines then applies a flat 1% house edge, so your shown multiplier is that fair value multiplied by 0.99.

The win chance of reaching a given step is simply the reciprocal of the fair multiplier: more mines, or more tiles revealed, means a bigger multiplier but a smaller chance of getting there. That trade-off is the whole game — read the Mines strategy guide for how to think about it, or see how fairness is guaranteed on the provably fair page.

Use it as a Stake, Roobet or BC.Game Mines calculator

The Mines game is the same wherever you play it: 25 tiles, a 5×5 grid, and a multiplier driven purely by how many mines are on the board and how many safe tiles you reveal. That means this works as a Stake Mines calculator, a Roobet Mines calculator, and a calculator for BC.Game, Gamdom and Rainbet Mines too. Punch in the same mine count and safe-tile target and you get the same odds and multiplier — the only difference between sites is the house edge, which is a flat 1% on SatoshiMines.

There is no Mines predictor or pattern that can tell you which tiles are safe: on a provably fair game the mines are locked in before your first pick. Knowing the real odds for each step is the only genuine edge — and that is exactly what this calculator gives you.

Mines calculator FAQ

How is the Mines multiplier calculated?

After revealing k safe tiles on a grid of N = 25 tiles with m mines, the fair multiplier is the product of (N − i) ÷ (N − m − i) for i from 0 to k − 1, then multiplied by 0.99 for the 1% house edge.

What is the win chance in Mines?

The chance of revealing k safe tiles in a row with m mines is the product of (N − m − i) ÷ (N − i) for i from 0 to k − 1 — exactly the reciprocal of the fair multiplier.

Can I use this as a Stake, Roobet or BC.Game Mines calculator?

Yes. Stake, Roobet, BC.Game, Gamdom and Rainbet all run the same 5×5, 25-tile Mines game, so the multiplier and win-probability formula is identical. Only the house edge differs slightly between sites.

Is there a Mines predictor that tells you which tiles are safe?

No. The mine positions are locked by a cryptographically secure seed before you pick, so no predictor, pattern or hack can know which tiles are safe. This calculator shows the true odds and multiplier for each step — the only real edge you can work with.

Mines calculators by site

The Mines maths is identical wherever you play, so this same tool doubles as a calculator for every major crypto casino. Jump to a site-specific guide with worked examples and FAQs:

Looking for a Mines predictor? There isn’t one that works — a calculator that shows the true odds is the only legitimate tool.

Embed this Mines calculator

Run a site or blog about crypto, casinos or Mines? Embed this calculator free — copy the snippet below. It drops a clean, dark-themed widget into your page (with a small credit link back here).

Preview the widget →

Ready to play?

Put the numbers to work on a real 5×5 grid.

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