{
  "id": "decimal-to-percentage",
  "version": "91d8befe1c58",
  "status": "published",
  "name": "Decimal to Percent Calculator",
  "question": "How to change decimal to percent?",
  "summary": "Turns a decimal into a percent by multiplying by 100, exactly as typed: 0.625 is 62.5% and 1.2 is 120%.",
  "category": "convert",
  "subcategory": "number-bases",
  "url": "https://www.acalculator.org/convert/decimal-to-percentage",
  "markdown": "https://www.acalculator.org/convert/decimal-to-percentage.md",
  "kind": "function",
  "method": "percent = decimal × 100: move the decimal point two places to the right and add the % sign.",
  "assumptions": [
    "The decimal is taken exactly as typed, so the percent shows every digit with no rounding.",
    "A decimal above 1 gives a percent above 100%; a negative decimal gives a negative percent."
  ],
  "inputs": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "d": {
        "title": "Decimal",
        "description": "The decimal to write as a percent, for example 0.625.",
        "type": "number",
        "minimum": -1000000000000,
        "maximum": 1000000000000
      }
    }
  },
  "outputs": {
    "percent": {
      "label": "Percent",
      "description": "The decimal × 100, with every digit, and a percent sign.",
      "format": "text"
    },
    "value": {
      "label": "Percent (number)",
      "description": "The same percent as a number, without the sign.",
      "format": "number"
    },
    "work": {
      "label": "How",
      "description": "The decimal times 100.",
      "format": "text"
    }
  },
  "defaultAnswer": {
    "inputs": {
      "d": 0.625
    },
    "outputs": {
      "percent": "62.5%",
      "value": 62.5,
      "work": "0.625 × 100 = 62.5%"
    },
    "text": "0.625 × 100 = 62.5%."
  },
  "examples": [
    {
      "given": {
        "d": 0.625
      },
      "expect": {
        "percent": "62.5%",
        "value": 62.5,
        "work": "0.625 × 100 = 62.5%"
      },
      "source": "OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a decimal to a percent: multiply by 100, move the decimal point two places right), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05); hand calculation in content.mdx"
    },
    {
      "given": {
        "d": 0.05
      },
      "expect": {
        "percent": "5%",
        "value": 5
      },
      "source": "OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a decimal to a percent: multiply by 100, move the decimal point two places right), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05); hand calculation in content.mdx: 0.05 × 100 = 5"
    },
    {
      "given": {
        "d": 1.2
      },
      "expect": {
        "percent": "120%"
      },
      "source": "OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a decimal to a percent: multiply by 100, move the decimal point two places right), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05); hand calculation in content.mdx: 1.2 × 100 = 120"
    },
    {
      "given": {
        "d": -0.0035
      },
      "expect": {
        "percent": "−0.35%",
        "value": -0.35
      },
      "source": "OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a decimal to a percent: multiply by 100, move the decimal point two places right), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05); hand calculation in content.mdx: −0.0035 × 100 = −0.35"
    },
    {
      "given": {
        "d": 0.1
      },
      "expect": {
        "percent": "10%",
        "value": 10
      },
      "source": "OpenStax, Prealgebra 2e, §6.1 Understand Percent (convert a decimal to a percent: multiply by 100, move the decimal point two places right), https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent (retrieved 2026-10-05); hand calculation in content.mdx"
    }
  ],
  "sources": [
    "OpenStax, Prealgebra 2e, §6.1 Understand Percent: to convert a decimal to a percent, multiply by 100 (move the decimal point two places to the right) and add the % sign. CC BY 4.0. Retrieved 2026-10-05. https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent"
  ],
  "related": [
    "percentage-to-decimal",
    "fraction-to-percentage",
    "decimal-to-fraction",
    "percentage"
  ],
  "changelog": []
}