{
  "entity_type": "unit_conversion_page",
  "id": "milliseconds-to-seconds",
  "name": "Milliseconds to Seconds",
  "title": "Milliseconds to Seconds Converter (ms to s)",
  "description": "Convert milliseconds to seconds: 1 ms = 0.001 s. 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": "ms",
    "display": "ms",
    "name": "milliseconds",
    "singular": "millisecond"
  },
  "to_unit": {
    "symbol": "s",
    "display": "s",
    "name": "seconds",
    "singular": "second"
  },
  "linear": true,
  "factor": 0.001,
  "inverse_factor": 1000,
  "formula": "seconds = milliseconds × 0.001",
  "reverse_formula": "milliseconds = seconds × 1000",
  "unit_relation": "1 ms = 0.001 s",
  "examples": [
    {
      "value": 5,
      "result": 0.005,
      "text": "5 ms = 0.005 s"
    },
    {
      "value": 12.5,
      "result": 0.0125,
      "text": "12.5 ms = 0.0125 s"
    },
    {
      "value": 100,
      "result": 0.1,
      "text": "100 ms = 0.1 s"
    }
  ],
  "table": [
    {
      "ms": 1,
      "s": 0.001
    },
    {
      "ms": 2,
      "s": 0.002
    },
    {
      "ms": 3,
      "s": 0.003
    },
    {
      "ms": 4,
      "s": 0.004
    },
    {
      "ms": 5,
      "s": 0.005
    },
    {
      "ms": 6,
      "s": 0.006
    },
    {
      "ms": 7,
      "s": 0.007
    },
    {
      "ms": 8,
      "s": 0.008
    },
    {
      "ms": 9,
      "s": 0.009
    },
    {
      "ms": 10,
      "s": 0.01
    },
    {
      "ms": 15,
      "s": 0.015
    },
    {
      "ms": 20,
      "s": 0.02
    },
    {
      "ms": 25,
      "s": 0.025
    },
    {
      "ms": 30,
      "s": 0.03
    },
    {
      "ms": 40,
      "s": 0.04
    },
    {
      "ms": 50,
      "s": 0.05
    },
    {
      "ms": 75,
      "s": 0.075
    },
    {
      "ms": 100,
      "s": 0.1
    },
    {
      "ms": 200,
      "s": 0.2
    },
    {
      "ms": 250,
      "s": 0.25
    },
    {
      "ms": 500,
      "s": 0.5
    },
    {
      "ms": 1000,
      "s": 1
    }
  ],
  "faq": [
    {
      "q": "How many seconds are in one millisecond?",
      "a": "1 ms = 0.001 s. 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 milliseconds to seconds?",
      "a": "Multiply the value in milliseconds by 0.001: seconds = milliseconds × 0.001. For example, 5 ms = 0.005 s."
    },
    {
      "q": "How do I convert seconds back to milliseconds?",
      "a": "Multiply by the inverse factor 1000 (milliseconds = seconds × 1000), or use the seconds-to-milliseconds 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=ms&to_unit=s",
    "calculator": "https://tttkmbb.com/api/v1/calculate/time?value=5&from_unit=ms&to_unit=s",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "ms",
      "to_unit": "s"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/milliseconds-to-seconds",
    "markdown": "https://tttkmbb.com/conversion/milliseconds-to-seconds.md",
    "json": "https://tttkmbb.com/conversion/milliseconds-to-seconds.json",
    "reverse": "https://tttkmbb.com/conversion/seconds-to-milliseconds",
    "quantity_converter": "https://tttkmbb.com/conversion/time",
    "units": "https://tttkmbb.com/api/v1/units?quantity=time"
  },
  "timestamp": "2026-09-24"
}