{
  "entity_type": "unit_conversion_page",
  "id": "seconds-to-hours",
  "name": "Seconds to Hours",
  "title": "Seconds to Hours Converter (s to h)",
  "description": "Convert seconds to hours: 1 s = 0.000277778 h. 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": "h",
    "display": "h",
    "name": "hours",
    "singular": "hour"
  },
  "linear": true,
  "factor": 0.0002777777778,
  "inverse_factor": 3600,
  "formula": "hours = seconds × 0.0002777777778",
  "reverse_formula": "seconds = hours × 3600",
  "unit_relation": "1 s = 0.000277778 h",
  "examples": [
    {
      "value": 5,
      "result": 0.00138889,
      "text": "5 s = 0.00138889 h"
    },
    {
      "value": 12.5,
      "result": 0.00347222,
      "text": "12.5 s = 0.00347222 h"
    },
    {
      "value": 100,
      "result": 0.0277778,
      "text": "100 s = 0.0277778 h"
    }
  ],
  "table": [
    {
      "s": 1,
      "h": 0.000277778
    },
    {
      "s": 2,
      "h": 0.000555556
    },
    {
      "s": 3,
      "h": 0.000833333
    },
    {
      "s": 4,
      "h": 0.00111111
    },
    {
      "s": 5,
      "h": 0.00138889
    },
    {
      "s": 6,
      "h": 0.00166667
    },
    {
      "s": 7,
      "h": 0.00194444
    },
    {
      "s": 8,
      "h": 0.00222222
    },
    {
      "s": 9,
      "h": 0.0025
    },
    {
      "s": 10,
      "h": 0.00277778
    },
    {
      "s": 15,
      "h": 0.00416667
    },
    {
      "s": 20,
      "h": 0.00555556
    },
    {
      "s": 25,
      "h": 0.00694444
    },
    {
      "s": 30,
      "h": 0.00833333
    },
    {
      "s": 40,
      "h": 0.0111111
    },
    {
      "s": 50,
      "h": 0.0138889
    },
    {
      "s": 75,
      "h": 0.0208333
    },
    {
      "s": 100,
      "h": 0.0277778
    },
    {
      "s": 200,
      "h": 0.0555556
    },
    {
      "s": 250,
      "h": 0.0694444
    },
    {
      "s": 500,
      "h": 0.138889
    },
    {
      "s": 1000,
      "h": 0.277778
    }
  ],
  "faq": [
    {
      "q": "How many hours are in one second?",
      "a": "1 s = 0.000277778 h. 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 hours?",
      "a": "Multiply the value in seconds by 0.0002777777778: hours = seconds × 0.0002777777778. For example, 5 s = 0.00138889 h."
    },
    {
      "q": "How do I convert hours back to seconds?",
      "a": "Multiply by the inverse factor 3600 (seconds = hours × 3600), or use the hours-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=h",
    "calculator": "https://tttkmbb.com/api/v1/calculate/time?value=5&from_unit=s&to_unit=h",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "s",
      "to_unit": "h"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/seconds-to-hours",
    "markdown": "https://tttkmbb.com/conversion/seconds-to-hours.md",
    "json": "https://tttkmbb.com/conversion/seconds-to-hours.json",
    "reverse": "https://tttkmbb.com/conversion/hours-to-seconds",
    "quantity_converter": "https://tttkmbb.com/conversion/time",
    "units": "https://tttkmbb.com/api/v1/units?quantity=time"
  },
  "timestamp": "2026-09-24"
}