{
  "id": "logarithm-calculator",
  "version": "7.0.0",
  "name": "Logarithm Calculator",
  "shortName": "Logarithm",
  "description": "Calculate the logarithm of a number with any base.",
  "category": "Math & Statistics",
  "categorySlug": "math-statistics",
  "keywords": [
    "logarithm",
    "log calculator",
    "common log",
    "natural log"
  ],
  "status": "live",
  "workStatus": "pending",
  "reviewStatus": "pending",
  "migrationStatus": "migrated",
  "migratedDate": "2026-08-18",
  "engine": "legacy-react",
  "creator": null,
  "reviewer": null,
  "quality": {
    "availability": "live",
    "technicalReviewRecord": "/reviews/logarithm-calculator.json",
    "qualifiedReview": "pending",
    "qualifiedReviewer": null,
    "qualifiedReviewDate": null,
    "formulaVersion": "7.0.0",
    "referenceCoverage": "references-pending",
    "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
    "historicalMetadataDate": "2026-08-18",
    "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
  },
  "urls": {
    "page": "/calculator/logarithm-calculator/",
    "definition": "/calculator/logarithm-calculator/definition.json",
    "schema": "/calculator/logarithm-calculator/schema.json",
    "llms": "/calculator/logarithm-calculator/llms.txt",
    "legacyDefinition": "/calculator/logarithm-calculator.json"
  },
  "queryExample": "https://askcalculators.com/calculator/logarithm-calculator/?base=10&number=100",
  "queryParameters": {
    "base": {
      "label": "Base",
      "type": "number",
      "required": false,
      "default": 10
    },
    "number": {
      "label": "Number",
      "type": "number",
      "required": false,
      "default": 100
    }
  },
  "inputs": [
    {
      "id": "base",
      "label": "Base",
      "type": "number",
      "defaultValue": 10
    },
    {
      "id": "number",
      "label": "Number",
      "type": "number",
      "defaultValue": 100
    }
  ],
  "outputs": [
    {
      "id": "result",
      "label": "Result",
      "format": "text",
      "primary": true
    }
  ],
  "formula": {
    "expression": "log base b of x = ln(x) ÷ ln(b)."
  },
  "examples": [
    {
      "label": "Reproducible default-input example (not a personal recommendation)",
      "inputs": {
        "base": 10,
        "number": 100
      }
    }
  ],
  "sources": []
}