{
  "entity_type": "unit_conversion_page",
  "id": "seconds-to-milliseconds",
  "name": "Seconds to Milliseconds",
  "title": "Seconds to Milliseconds Converter (s to ms)",
  "description": "Convert seconds to milliseconds: 1 s = 1000 ms. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "time",
  "quantity_name": "Time",
  "base_unit": "s",
  "from_unit": {
    "symbol": "s",
    "display": "s",
    "name": "seconds",
    "singular": "second"
  },
  "to_unit": {
    "symbol": "ms",
    "display": "ms",
    "name": "milliseconds",
    "singular": "millisecond"
  },
  "linear": true,
  "factor": 1000,
  "inverse_factor": 0.001,
  "formula": "milliseconds = seconds × 1000",
  "reverse_formula": "seconds = milliseconds × 0.001",
  "unit_relation": "1 s = 1000 ms",
  "examples": [
    {
      "value": 5,
      "result": 5000,
      "text": "5 s = 5000 ms"
    },
    {
      "value": 12.5,
      "result": 12500,
      "text": "12.5 s = 12500 ms"
    },
    {
      "value": 100,
      "result": 100000,
      "text": "100 s = 100000 ms"
    }
  ],
  "table": [
    {
      "s": 1,
      "ms": 1000
    },
    {
      "s": 2,
      "ms": 2000
    },
    {
      "s": 3,
      "ms": 3000
    },
    {
      "s": 4,
      "ms": 4000
    },
    {
      "s": 5,
      "ms": 5000
    },
    {
      "s": 6,
      "ms": 6000
    },
    {
      "s": 7,
      "ms": 7000
    },
    {
      "s": 8,
      "ms": 8000
    },
    {
      "s": 9,
      "ms": 9000
    },
    {
      "s": 10,
      "ms": 10000
    },
    {
      "s": 15,
      "ms": 15000
    },
    {
      "s": 20,
      "ms": 20000
    },
    {
      "s": 25,
      "ms": 25000
    },
    {
      "s": 30,
      "ms": 30000
    },
    {
      "s": 40,
      "ms": 40000
    },
    {
      "s": 50,
      "ms": 50000
    },
    {
      "s": 75,
      "ms": 75000
    },
    {
      "s": 100,
      "ms": 100000
    },
    {
      "s": 200,
      "ms": 200000
    },
    {
      "s": 250,
      "ms": 250000
    },
    {
      "s": 500,
      "ms": 500000
    },
    {
      "s": 1000,
      "ms": 1000000
    }
  ],
  "faq": [
    {
      "q": "How many milliseconds are in one second?",
      "a": "1 s = 1000 ms. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures."
    },
    {
      "q": "What is the formula to convert seconds to milliseconds?",
      "a": "Multiply the value in seconds by 1000: milliseconds = seconds × 1000. For example, 5 s = 5000 ms."
    },
    {
      "q": "How do I convert milliseconds back to seconds?",
      "a": "Multiply by the inverse factor 0.001 (seconds = milliseconds × 0.001), or use the milliseconds-to-seconds page."
    }
  ],
  "sources": [
    {
      "name": "NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors",
      "url": "https://www.nist.gov/pml/special-publication-811",
      "type": "standard",
      "retrieved_at": "2026-09-24"
    },
    {
      "name": "BIPM – The International System of Units (SI Brochure, 9th edition)",
      "url": "https://www.bipm.org/en/publications/si-brochure",
      "type": "standard",
      "retrieved_at": "2026-09-24"
    },
    {
      "name": "Wikipedia – Conversion of units",
      "url": "https://en.wikipedia.org/wiki/Conversion_of_units",
      "type": "reference",
      "retrieved_at": "2026-09-24"
    }
  ],
  "freshness": {
    "type": "static",
    "max_age_seconds": null,
    "note": "Fixed conversion factors (NIST/BIPM definitions); results never go stale."
  },
  "api": {
    "convert": "https://tttkmbb.com/api/v1/convert?value=5&from_unit=s&to_unit=ms",
    "calculator": "https://tttkmbb.com/api/v1/calculate/time?value=5&from_unit=s&to_unit=ms",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "s",
      "to_unit": "ms"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/seconds-to-milliseconds",
    "markdown": "https://tttkmbb.com/conversion/seconds-to-milliseconds.md",
    "json": "https://tttkmbb.com/conversion/seconds-to-milliseconds.json",
    "reverse": "https://tttkmbb.com/conversion/milliseconds-to-seconds",
    "quantity_converter": "https://tttkmbb.com/conversion/time",
    "units": "https://tttkmbb.com/api/v1/units?quantity=time"
  },
  "timestamp": "2026-09-24"
}