Exact math
Last verified: September 2026
House Edge Calculator
House edge is the share of total wager the operator keeps in theory. Convert it from RTP or back again, and see what it costs per 100 dollars wagered.
Inputs
Result
House edge3%
Cost per $100 wagered$3.00
Theoretical loss on your wager$300
Returned to players97.00%
Retained by the house3.00%
RTP plus house edge always equals 100 percent.
Continue calculating
Sources
- Return to player and house edge definitions
RTP and house edge are complements that sum to 100 percent.
Public reference · checked 2026-09-01