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Fair Odds Calculator

Strips the margin from two-sided betting odds to show fair probabilities and prices, plus expected value and parlay arithmetic.

FreeActively maintained

LifestyleAnalyticsFree tier
fairoddscalculator.com ↗
Open fairoddscalculator.comAlternativesSet it up for my teamIs Fair Odds Calculator yours? Claim the card →
At a glanceswept Oct 13, 2026

≈ 2visits/mo

Little sign of use · estimate, read Oct 13, 2026

For
People comparing betting odds who want the fair price behind a two-sided market before acting on it.
Price
Freepricing page, read Oct 20, 2026
Activity
Actively maintainedsite updated 9 days ago
Used for
  • remove the margin from a two-sided market price
  • compare a posted price against your own probability
  • multiply two to four parlay legs into one price
read off fairoddscalculator.com on Oct 20, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Oct 20, 2026

Free

pricing page

How a program reaches itfound, not claimed · read Oct 20, 2026
  • MCP servercom.fairoddscalculator/siteverified in the MCP registry
  • Stateanswers, 7 toolschecked 2026-10-20
  • Address to connectfairoddscalculator.com/mcp
  • OpenAPI spec8 pathsthe spec ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Lifestyleby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Fair Odds Calculator?

    Strips the margin from two-sided betting odds to show fair probabilities and prices, plus expected value and parlay arithmetic. It is listed in the Atlas under Lifestyle.

  • Who is Fair Odds Calculator for?

    People comparing betting odds who want the fair price behind a two-sided market before acting on it.

  • How much does Fair Odds Calculator cost?

    Fair Odds Calculator is free, per its pricing page on 2026-10-20.

  • Is Fair Odds Calculator free?

    Yes: Fair Odds Calculator is free, per its pricing page on 2026-10-20.

  • Do people use Fair Odds Calculator?

    Little sign of use: ≈ 2 visits/mo · estimate, 2026-10.

  • Is Fair Odds Calculator still maintained?

    Actively maintained: site updated 9 days ago.

  • What are alternatives to Fair Odds Calculator?

    In Lifestyle, by use: SportBot AI, NegativeEV, AlphaBench, Lumify, Wedding Cost Checker, Chessigma.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk