{"success":true,"version":"v1","request":{"tool":"get_calculator_schema","calculator_id":"cholesterol-unit-conversion"},"result":{"entity_type":"calculator","id":"cholesterol-unit-conversion","calculator_id":"cholesterol-unit-conversion","canonical_url":"https://tttkmbb.com/medical/cholesterol-unit-conversion","name":"Cholesterol Unit Converter","title":"Cholesterol and Triglyceride Unit Converter – mg/dL ↔ mmol/L (Total, HDL, LDL, Triglycerides)","category":"medical","category_name":"Medical & Clinical","tool_name":"convert_cholesterol_units","featured_mcp_tool":false,"description":"Converts total, HDL, LDL or non-HDL cholesterol (factor 0.02586) and triglycerides (factor 0.01129) between mg/dL and mmol/L.","use_when":"A lipid result or target is reported in the other unit system.","do_not_use_when":"You need to calculate LDL from a lipid panel (use ldl-cholesterol) or convert glucose (use glucose-unit-conversion), which use different factors.","inputs":[{"name":"value","label":"Value","type":"number","required":true,"max":10000,"exclusive_min":0,"description":"The lipid value to convert.","example":200},{"name":"from_unit","label":"From unit","type":"enum","required":true,"values":[{"value":"mg_dl","label":"mg/dL","aliases":["mg/dl","mgdl"]},{"value":"mmol_l","label":"mmol/L","aliases":["mmol/l","mmol"]}],"description":"Unit of the entered value.","example":"mg_dl"},{"name":"analyte","label":"Analyte","type":"enum","required":false,"default":"total_cholesterol","values":[{"value":"total_cholesterol","label":"Total cholesterol","aliases":["total","cholesterol","tc"]},{"value":"hdl","label":"HDL cholesterol","aliases":["hdl_cholesterol"]},{"value":"ldl","label":"LDL cholesterol","aliases":["ldl_cholesterol"]},{"value":"non_hdl","label":"Non-HDL cholesterol","aliases":["non-hdl","nonhdl"]},{"value":"triglycerides","label":"Triglycerides","aliases":["tg","triglyceride"]}],"description":"Cholesterol fractions share one factor; triglycerides use another.","example":"total_cholesterol"}],"outputs":[{"name":"mg_dl","label":"Value","type":"number","unit":"mg/dL","decimals":1,"description":"Value in mg/dL."},{"name":"mmol_l","label":"Value","type":"number","unit":"mmol/L","decimals":2,"description":"Value in mmol/L."},{"name":"factor","label":"Factor (mg/dL → mmol/L)","type":"number","decimals":5,"description":"0.02586 for cholesterol, 0.01129 for triglycerides."},{"name":"analyte","label":"Analyte","type":"string","decimals":4,"description":"Analyte converted."}],"input_schema":{"type":"object","properties":{"value":{"description":"The lipid value to convert.","type":"number","maximum":10000,"exclusiveMinimum":0,"examples":[200]},"from_unit":{"description":"Unit of the entered value.","type":"string","enum":["mg_dl","mmol_l"],"examples":["mg_dl"]},"analyte":{"description":"Cholesterol fractions share one factor; triglycerides use another.","type":"string","enum":["total_cholesterol","hdl","ldl","non_hdl","triglycerides"],"default":"total_cholesterol","examples":["total_cholesterol"]}},"additionalProperties":false,"required":["value","from_unit"]},"output_schema":{"type":"object","properties":{"mg_dl":{"description":"Value in mg/dL. 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Results are informational only and not a substitute for clinical judgement or medical advice.","sources":[{"name":"American Heart Association – What your cholesterol levels mean","url":"https://www.heart.org/en/health-topics/cholesterol/about-cholesterol/what-your-cholesterol-levels-mean","type":"reference","retrieved_at":"2026-09-24"},{"name":"Wikipedia – Cholesterol (units and reference ranges)","url":"https://en.wikipedia.org/wiki/Cholesterol","type":"reference","retrieved_at":"2026-09-24"}],"freshness":{"type":"static","max_age_seconds":null,"note":"Deterministic formula with fixed constants; results never go stale. Inputs supplied by the caller determine the output."},"examples":[{"name":"Total cholesterol 200 mg/dL","inputs":{"value":200,"from_unit":"mg_dl","analyte":"total_cholesterol"},"expected":{"mmol_l":5.17,"factor":0.02586},"url":"https://tttkmbb.com/api/v1/calculate/cholesterol-unit-conversion?value=200&from_unit=mg_dl&analyte=total_cholesterol"},{"name":"Triglycerides 150 mg/dL","inputs":{"value":150,"from_unit":"mg_dl","analyte":"triglycerides"},"expected":{"mmol_l":1.69,"factor":0.01129},"url":"https://tttkmbb.com/api/v1/calculate/cholesterol-unit-conversion?value=150&from_unit=mg_dl&analyte=triglycerides"},{"name":"LDL 3.0 mmol/L","inputs":{"value":3,"from_unit":"mmol_l","analyte":"ldl"},"expected":{"mg_dl":116},"url":"https://tttkmbb.com/api/v1/calculate/cholesterol-unit-conversion?value=3&from_unit=mmol_l&analyte=ldl"}],"faq":[{"q":"Why do triglycerides use a different factor?","a":"They are a different molecule (about 885 g/mol versus 386.65 g/mol for cholesterol), so 1 mmol/L of triglycerides is about 88.5 mg/dL while 1 mmol/L of cholesterol is 38.67 mg/dL."},{"q":"What are common targets in both units?","a":"LDL below 100 mg/dL is 2.6 mmol/L, below 70 mg/dL is 1.8 mmol/L; triglycerides below 150 mg/dL is 1.7 mmol/L."}],"tags":["cholesterol conversion","mg/dl to mmol/l cholesterol","triglycerides mmol/l","ldl units","hdl units"],"related":[{"calculator_id":"ldl-cholesterol","reason":"Calculate LDL and non-HDL from a lipid panel."},{"calculator_id":"glucose-unit-conversion","reason":"Glucose uses a different factor."}],"links":{"html":"https://tttkmbb.com/medical/cholesterol-unit-conversion","markdown":"https://tttkmbb.com/medical/cholesterol-unit-conversion.md","json":"https://tttkmbb.com/medical/cholesterol-unit-conversion.json","api":"https://tttkmbb.com/api/v1/calculate/cholesterol-unit-conversion","schema":"https://tttkmbb.com/api/v1/calculators/cholesterol-unit-conversion","openapi":"https://tttkmbb.com/openapi.json","mcp":"https://tttkmbb.com/mcp"},"version":"v1","updated_at":"2026-09-24"},"timestamp":"2026-09-24T01:48:13Z","next_actions":[{"tool":"run_calculator","calculator_id":"cholesterol-unit-conversion","reason":"Run Cholesterol Unit Converter with the inputs above."}],"links":{"markdown":"https://tttkmbb.com/medical/cholesterol-unit-conversion.md"}}