RTP Expectation Calculator
Turn a starting balance, round cost and RTP into one exact long-run arithmetic path.
Set the horizon
All values use credits. Nothing is saved or sent.
Credits available before the first planned round.
Whole paid rounds in the planned horizon.
Credits wagered for each paid round.
The long-run return percentage used in the arithmetic.
Expected ending balance
Starting balance minus expected cost.
100.00 − 50.00 + 47.50 = 97.50
- Total wager
- 50.00
- Expected return
- 47.50
- Expected cost
- 2.50
- Expected ending balance
- 97.50
Total wager 50.00 credits. Expected return 47.50 credits. Expected cost 2.50 credits. Expected ending balance 97.50 credits.
This is the arithmetic centre across many comparable repetitions, not a balance target for one session.
The distance between one real session and this line is not a volatility score. Volatility requires a distribution across many comparable paths.
Expected balance path
A straight arithmetic line from round zero to the selected horizon.
Read the expected path as a table
| Round | Wagered | Expected balance |
|---|---|---|
| Round 0 | 0.00 | 100.00 |
| Round 1 | 1.00 | 99.95 |
| Round 2 | 2.00 | 99.90 |
| Round 3 | 3.00 | 99.85 |
| Round 4 | 4.00 | 99.80 |
| Round 5 | 5.00 | 99.75 |
| Round 6 | 6.00 | 99.70 |
| Round 7 | 7.00 | 99.65 |
| Round 8 | 8.00 | 99.60 |
| Round 9 | 9.00 | 99.55 |
| Round 10 | 10.00 | 99.50 |
| Round 11 | 11.00 | 99.45 |
| Round 12 | 12.00 | 99.40 |
| Round 13 | 13.00 | 99.35 |
| Round 14 | 14.00 | 99.30 |
| Round 15 | 15.00 | 99.25 |
| Round 16 | 16.00 | 99.20 |
| Round 17 | 17.00 | 99.15 |
| Round 18 | 18.00 | 99.10 |
| Round 19 | 19.00 | 99.05 |
| Round 20 | 20.00 | 99.00 |
| Round 21 | 21.00 | 98.95 |
| Round 22 | 22.00 | 98.90 |
| Round 23 | 23.00 | 98.85 |
| Round 24 | 24.00 | 98.80 |
| Round 25 | 25.00 | 98.75 |
| Round 26 | 26.00 | 98.70 |
| Round 27 | 27.00 | 98.65 |
| Round 28 | 28.00 | 98.60 |
| Round 29 | 29.00 | 98.55 |
| Round 30 | 30.00 | 98.50 |
| Round 31 | 31.00 | 98.45 |
| Round 32 | 32.00 | 98.40 |
| Round 33 | 33.00 | 98.35 |
| Round 34 | 34.00 | 98.30 |
| Round 35 | 35.00 | 98.25 |
| Round 36 | 36.00 | 98.20 |
| Round 37 | 37.00 | 98.15 |
| Round 38 | 38.00 | 98.10 |
| Round 39 | 39.00 | 98.05 |
| Round 40 | 40.00 | 98.00 |
| Round 41 | 41.00 | 97.95 |
| Round 42 | 42.00 | 97.90 |
| Round 43 | 43.00 | 97.85 |
| Round 44 | 44.00 | 97.80 |
| Round 45 | 45.00 | 97.75 |
| Round 46 | 46.00 | 97.70 |
| Round 47 | 47.00 | 97.65 |
| Round 48 | 48.00 | 97.60 |
| Round 49 | 49.00 | 97.55 |
| Round 50 | 50.00 | 97.50 |