Reference datasets
Machine-readable versions of the temperature tables we publish on
ctofconverter. Free to use, including commercially, with attribution (CC-BY-4.0). No key, no rate-limit games, Access-Control-Allow-Origin: *.
curl https://ctofconverter.com/api/ref
Every row is one number that a named public-health or clinical source actually publishes, with the URL it was read from and a verbatim fragment. Deliberately excludes any band that no source publishes.
34 rows · v1.0.0 · updated 2026-08-27 · CC-BY-4.0
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Attribution: ctofconverter.com
Columns
idtopicapplies_toaudiencesitesettingrulec_minc_maxf_minf_maxoffset_cduration_dayslabelactionsourcesource_urlquotenotechecked_on
Sources & verification
- NHS — Fever in adults / Fever in children / Hypothermia / How to take your baby's temperature — https://www.nhs.uk/symptoms/fever-in-adults/ (checked 2026-08-27) — All four NHS pages re-fetched from this machine on 2026-08-27 and returned HTTP 200 with the quoted strings present. Other NHS URLs used: /symptoms/fever-in-children/, /conditions/hypothermia/, /baby/health/how-to-take-your-babys-temperature/.
- StatPearls (NCBI Bookshelf) — Hypothermia (NBK545239) and Physiology, Fever (NBK562334) — https://www.ncbi.nlm.nih.gov/books/NBK545239/ (checked 2026-08-27) — Both chapters re-fetched 2026-08-27 (HTTP 200). NBK545239 is the source for the 35 °C hypothermia definition, the 36.5–37.5 °C normal range and the mild/moderate/severe staging. NBK562334 is the source for the low/moderate/high/hyperthermia fever bands and the per-site average readings.
- Merck Manual, Professional Version — Fever — https://www.merckmanuals.com/professional/infectious-diseases/biology-of-infectious-disease/fever (checked 2026-08-27) — Re-fetched 2026-08-27 (HTTP 200). Source for the 40 °C / 35 °C red flags and the 0.6 °C site offsets.
- NICE CG65 — Hypothermia in the perioperative period (via NCBI Bookshelf NBK554181) — https://www.ncbi.nlm.nih.gov/books/NBK554181/ (checked 2026-08-27) — Re-fetched 2026-08-27 (HTTP 200). Source for the separate perioperative 'low core temperature' cut-off of 36.0 °C, which is NOT a definition of hypothermia.
- Royal Children's Hospital Melbourne — Temperature management (paediatric guideline) — https://www.rch.org.au/rchcpg/hospital_clinical_guideline_index/Temperature_management/ (checked 2026-08-27) — Re-fetched 2026-08-27 (HTTP 200). Source for the paediatric / neonatal low-temperature thresholds used in hospital care.
- Mayo Clinic and CDC pages — https://www.mayoclinic.org/first-aid/first-aid-fever/basics/art-20056685 (checked 2026-08-27) — Quotes were captured by a manual read of these pages on 2026-08-27 and recorded in docs/数据来源核查-2026-08-27.md. Automated re-fetch of mayoclinic.org and cdc.gov from this build machine returns HTTP 403 (bot protection), so the numbers could not be re-verified by script — they are kept here only where they agree with a machine-verified source above.
- PMC6456186 — systematic review of normal body temperature values (9,227 measurements) — https://pmc.ncbi.nlm.nih.gov/articles/PMC6456186/ (checked 2026-08-27) — Re-fetched 2026-08-27 (HTTP 200). Used to cross-check the per-site averages published in StatPearls NBK562334; the two agree.
- Field notes on scope — https://ctofconverter.com/data-api (checked 2026-08-27) — Rows carry a "setting" value (home | hospital | reference | device) and an "audience" value (any | adult | child | infant | neonate). The lookup endpoint applies only home rows unless you pass ?setting=all, and ?person= narrows by age group, so a home reader is never shown an inpatient escalation threshold or another age group's cut-off.
Reference data transcribed from published sources on 2026-08-27. Not medical advice and not a diagnosis. Care-seeking rules differ by country, by age and by the person's underlying health; when in doubt, contact a clinician or emergency services. If any number here matters to a decision, open the source URL and read it yourself.
Gas mark ↔ conventional °C/°F ↔ fan-assisted °C/°F, with the published fan reduction convention stated separately from the measured values.
12 rows · v1.0.0 · updated 2026-08-27 · CC-BY-4.0
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Attribution: ctofconverter.com
Columns
gas_markconventional_cconventional_ffan_cfan_fdescriptortypical_uses
Sources & verification
- Wikipedia — Gas mark, 'Conversion table' (its own references: BBC Good Food 'Conversion Guides'; The Guardian, 'Cooking conversion charts', 24 Nov 2007) — https://en.wikipedia.org/wiki/Gas_mark (checked 2026-08-27) — Secondary source, used because it reproduces the two published conversion guides in one table. Conventional-oven values in this dataset are taken verbatim from that table (110/120/140/150/170/180/190/200/220/230/240/260 °C at 25 °F steps).
- ctofconverter.com — Fan oven conversion chart — https://ctofconverter.com/fan-oven-conversion-chart (checked 2026-08-27) — The site's own gas-mark rows were corrected to match the table above on 2026-08-27. The previous revision labelled conventional values as fan values and had Gas Mark 3, 5 and 7 wrong; do not copy the pre-2026-08-27 revision.
Minimum internal temperatures by product, with rest times, as published by USDA FSIS, plus the danger zone.
9 rows · v1.0.0 · updated 2026-08-27 · CC-BY-4.0
JSON · CSV · API · API→CSV
Attribution: ctofconverter.com
Columns
productmin_fahrenheitmin_celsiusrest_minutesnote
Sources & verification
Generated from config/datasets/*.json. Dataset list updated 2026-09-03.