Fees & ArbitrageFree utility
AND / OR Probability Combiner
Combine two beliefs under an explicit independence assumption.
and or probabilityindependent eventsprobability combiner
Inputs
Adjust liveCalculator setup
Enter your assumptions and this tool will update immediately.
Result
InstantPrimary output
14.00%
P(A and B)
Live resultReady to copy
Notes
This assumes independence. Use it as a rough combining helper only.
Related Tools
Keep the workflow moving with the next most relevant calculators.
Fee-Aware Break-Even Price
Solve for the maximum price that still breaks even after trading fees.
Open
YES + NO Bundle Arbitrage ROI
Check whether buying both sides still locks in a positive resolution payout.
Open
Cross-Platform Binary Arbitrage ROI
Check a buy-YES / buy-NO complement trade across two venues.
Open
Hedge Size Calculator
Estimate how many opposite-side shares you need to cap downside.
Open