Interactive ToolToolsExpected Value
Bonus Bet EV Calculator
Find the optimal odds for your bonus bets and maximize expected value. Adjust bonus size and book vig to see a real-time EV curve, peak value spots, and a full comparison table across all odds.
March 10, 2026
·5 min read
·By CasinoSnipeBONUS SIZE
$100
$25$500
BOOK VIG
Standard books: 4-5% · Sharp books: 2-3%
PEAK EV ODDS
+1500
optimal spot
PEAK EV
$89.29
89.3% of face value
-110 EV
$45.35
45.4% of face value
EV CURVE · -1500 TO +1500 ODDS · $100 BONUS
ODDS COMPARISON TABLE
| ODDS | TRUE PROB | PAYOUT | EV | % OF FACE |
|---|---|---|---|---|
| -500 | 79.4% | $20.00 | $15.87 | 15.9% |
| -300 | 71.4% | $33.33 | $23.81 | 23.8% |
| -200 | 63.5% | $50.00 | $31.75 | 31.7% |
| -150 | 57.1% | $66.67 | $38.10 | 38.1% |
| -110 | 49.9% | $90.91 | $45.35 | 45.4% |
| +100 | 47.6% | $100.00 | $47.62 | 47.6% |
| +150 | 38.1% | $150.00 | $57.14 | 57.1% |
| +200 | 31.7% | $200.00 | $63.49 | 63.5% |
| +300 | 23.8% | $300.00 | $71.43 | 71.4% |
| +500 | 15.9% | $500.00 | $79.37 | 79.4% |
| +750 | 11.2% | $750.00 | $84.03 | 84.0% |
| +1000 | 8.7% | $1000.00 | $86.58 | 86.6% |
✓ DO THIS
Target +EV lines in the +100 to +400 range
Look for inflated odds vs. true market
Higher odds = more upside, floor always $0
Use sharp books to find true line first
Look for inflated odds vs. true market
Higher odds = more upside, floor always $0
Use sharp books to find true line first
✗ AVOID THIS
Heavy favorites (−500 and worse)
Tiny payouts destroy EV even at high prob
Hedging a freeroll (locks in ~70-80% max)
Picking randomly without checking true line
Tiny payouts destroy EV even at high prob
Hedging a freeroll (locks in ~70-80% max)
Picking randomly without checking true line
Tags
#EV#Calculator#Bonus Bets#Odds#Strategy#Optimization