Trader Tools

Prediction Market Calculators

Every odds tool on the internet speaks sportsbook. These speak event contracts — cents, implied probability, venue fee formulas, and manual quote comparisons. Free, built on the same data as the predictions desk. No signup, no spreadsheet — instruments, not forms.

The Translator

Implied Probability & Odds Converter

Cents ↔ implied probability ↔ American, decimal, fractional — with a live dial that reads the market’s verdict, from longshot country to heavy chalk.

63¢ = 63% = −170 American = 1.59 decimal

The Fee Truth

Fee-Adjusted Breakeven Calculator

Kalshi’s fee formula and Polymarket’s winnings fees, then the number that matters: your real breakeven — with a bar that shows exactly how big a bite the fees take.

100 × 63¢ on Kalshi → breakeven 64.6%

The Quote Check

Manual YES/NO Pair Calculator

Enter executable YES and NO asks plus your fee estimate. See theoretical gross and after-fee margin with no inferred quote, fill claim, or equivalence claim.

YES 48¢ + NO 47¢ + 2¢ fees → theoretical +3¢

Sentiment Context

Crowd–Market Gap Tracker

Source-labeled venue probability beside community sentiment, ranked by the contextual gap. Illustrative and fallback inputs stay labeled; this is not venue divergence or a trade signal.

Illustrative · Crowd 62% vs Market 48% → 14 pts apart

The Daily Brief

The Daily Signal Sheet

A dated daily issue: odds moves, catalysts, market snapshots, and what resolves next — built from W.E.T.'s persisted corpus. Email signup appears when delivery is configured.

Dated issue · movers · snapshots · calendar

Educational tools, not financial or betting advice. Fee schedules change — verify on the venue. See the methodology.

Explore W.E.T.