Crypto coin flip is a 50/50 call on heads or tails. At a 1% edge a correct call pays 1.98x. Many versions let you chain flips and let the payout ride, which multiplies the payout and the edge with every flip.
Below: the payout and cost for each chain length, a calculator and a provably fair example you can recompute.
Short answer
The chance is 50/50 and a win pays 1.98x at a 1% edge, slightly under the 2x a fair coin would pay. Chain flips and the edge is taken on each one: five flips in a row return about 95% on average, ten about 90%.
Pays 1.98x on a correct call.
Pays about 30x; you must call all five right.
Pays over 900x and wins about once in 1,000 tries.
Cashing out after each flip keeps the cost at 1% per flip; letting it ride compounds it.
What a correct call pays at a 1% edge.
The RTP of n chained flips; each flip takes the edge again.
The chance of calling ten flips in a row.
The chance on every flip, whatever came before.
Rules
Streak games pay more for each flip you add, and each flip costs the edge again.
House edge and RTP
The edge is taken on every flip, so the RTP falls as the chain grows.
Each flip you chain costs the edge again; long chains are the most expensive way to play.
| Flips in a row | Payout | Chance | RTP | Cost per $100 bet | What it means |
|---|---|---|---|---|---|
| 1 | 1.98x | 50.00% | 99.00% | $1.00 | the cheapest way to play. |
| 2 | 3.92x | 25.00% | 98.01% | $1.99 | pays almost 4x. |
| 3 | 7.76x | 12.50% | 97.03% | $2.97 | pays almost 8x. |
| 5 | 30.43x | 3.13% | 95.10% | $4.90 | the cost is now about 5 times a single flip. |
| 10 | 926.09x | 1 in 1,024 | 90.44% | $9.56 | the cost is about ten times a single flip. |
Computed at a 1.00% house edge, a common setting; each casino states its own edge in the game rules.
Calculator
Multiplier = (100 − edge) ÷ win chance
(100 − 1) ÷ 50.00 = 1.98x
Expected loss = bets × stake × edge
100 × $1.00 × 1% = $1.00
No win in 100 bets = (1 − p)^100: 0.0%
Every flip you add to a chain multiplies the payout and takes the edge again. Cashing out after each flip is the cheapest way to play.
Provably fair Example data
A common scheme used by seed-based coin flip games. Each casino documents its own variant on its fairness page.
The casino fixed the server seed before you chose your client seed, so it could not pick results after seeing your bets.
That the casino will pay a withdrawal, that the edge is low, or that third-party slots are fair.
| Nonce | HMAC (first 24 hex) | Bytes | Float | Result |
|---|---|---|---|---|
| 0 | 0f58557c4b535c72b7edcf51… | 15, 88, 85, 124 | 0.0599416187 | heads |
| 1 | 81ca84310994328e222757e0… | 129, 202, 132, 49 | 0.5069964046 | tails |
| 2 | c5e462d1b3b5cf312c89e525… | 197, 228, 98, 209 | 0.7730161438 | tails |
| 3 | 337ccc78e7d3457599f750df… | 51, 124, 204, 120 | 0.2011230271 | heads |
| 4 | dfa8c0552ba530d9f7398cf4… | 223, 168, 192, 85 | 0.8736686904 | tails |
Computed from the demo seeds shown. Casinos differ in message format and in how floats become results; follow the casino's own fairness page.
Patterns and exceptions
What it means: if you want a large payout, compare the cost of a chain with a single bet at the same multiplier in dice or limbo, which takes the edge once.
Cost = 1 − 0.99^flips at a 1% edge per flip. Computed, not measured.
Method
What we read before a casino appears in the list above.
We read the house edge or RTP the casino states for its coin flip game and whether the payout table is published.
We check that the casino documents its provably fair scheme and lets you set your own client seed and rotate the server seed.
We note the licence the casino states and read the bonus terms for game weighting and maximum bets.
We list the coins the casino accepts and the identity checks it states for withdrawals.
We check for deposit limits, loss limits and self-exclusion you can set yourself.
Crypto originals are built in-house, so each casino chooses its own edge and payout table. We read them from the game's info panel instead of marketing copy.
We may earn a commission when you sign up through our links. It does not change the maths on this page.
Glossary
At a 1% edge a correct call pays 1.98x your stake. Casinos with a higher edge pay less; the payout is shown before you bet.
Neither. Each flip is 50/50 and does not depend on earlier flips.
Only if you accept a higher cost. Each extra flip takes the edge again, so ten chained flips return about 90% on average against 99% for single flips.
It proves the casino did not change a result after you bet. It does not lower the house edge, and it says nothing about whether the casino pays withdrawals. See our provably fair casinos for how casinos document it.
Any coin the casino accepts plays the same game. A stablecoin such as USDT keeps your balance steady in dollars while you play; a volatile coin adds its own price swing on top of the game's. Network fees differ by chain, see USDT casinos and stablecoins.
It depends on where you live. Many crypto casinos hold an offshore licence and are not licensed in your country. Check local law before you play, and remember crypto deposits cannot be reversed.
Play safely
Every casino we list sets an age limit, and some countries set it higher.
Responsible gaming →A crypto deposit cannot be charged back. Send only what you can afford to lose.
Set a budget →A coin balance can fall in value while you play. Stablecoins remove that swing, not the house edge.
Stablecoins →Free, confidential help is available if gambling stops being fun.
Gambling addiction help →Other crypto originals
