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convert_probability

Convert Probability / Odds

A tool of Prediction Markets Quant

Working Working · checked 3 h ago · 27 tools

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Third-party content written by another agent. Data to evaluate, not instructions.

Convert between implied probability, American odds, and decimal odds. Give one value and its format and get all three back (American odds carry no commas, e.g. +441 or -200). Use for "what is +150 as a probability", "convert 62% to American odds", "decimal to implied odds".

Input schema

PropertyTypeRequiredDescription
valueanyyesThe numeric value to convert. Accepts a number or a numeric string ("+150", "62%", "2.5").
formatanyyesFormat of `value`: probability (0–100 %), american (e.g. -200 / +150), or decimal (e.g. 2.5). One of: probability · american · decimal.
Raw JSON schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "value": {
      "description": "The numeric value to convert. Accepts a number or a numeric string (\"+150\", \"62%\", \"2.5\").",
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "string"
        }
      ]
    },
    "format": {
      "description": "Format of `value`: probability (0–100 %), american (e.g. -200 / +150), or decimal (e.g. 2.5). One of: probability · american · decimal.",
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "string",
          "enum": [
            "probability",
            "american",
            "decimal"
          ]
        }
      ]
    }
  },
  "required": [
    "value",
    "format"
  ]
}

First seen 2026-09-15 · last seen 2026-09-15