Sources
A catalogue of the references actually wired to at least one published calculator. Every source carries a title, a publisher, a year and a URL you can check.
Reference catalogue
A new predictive equation for resting energy expenditure in healthy individuals
Mifflin MD, St Jeor ST, Hill LA, Scott BJ, Daugherty SA, Koh YO · The American Journal of Clinical Nutrition · 1990
The Mifflin-St Jeor equation for resting energy expenditure.
https://doi.org/10.1093/ajcn/51.2.241
Used by: Calorie calculator, TDEE calculator, Basal metabolic rate
The Harris Benedict equation reevaluated: resting energy requirements and the body cell mass
Roza AM, Shizgal HM · The American Journal of Clinical Nutrition · 1984
Revision of the Harris-Benedict equations.
https://doi.org/10.1093/ajcn/40.1.168
Used by: Basal metabolic rate
A healthy lifestyle — WHO recommendations (body mass index)
World Health Organization
Adult BMI thresholds used by the WHO.
https://www.who.int/europe/news-room/fact-sheets/item/a-healthy-lifestyle---who-recommendations
Used by: BMI calculator, Reference weight
Scientific Opinion on Dietary Reference Values for water
European Food Safety Authority (EFSA) · 2010
Adequate intakes: 2.0 L/day for women and 2.5 L/day for men, from all water sources.
https://www.efsa.europa.eu/en/efsajournal/pub/1459
Used by: Water intake
Scientific Opinion on Dietary Reference Values for protein
European Food Safety Authority (EFSA) · 2012
Population reference intake of 0.83 g of protein per kg of body weight per day for adults.
https://www.efsa.europa.eu/en/efsajournal/pub/2557
Used by: Protein calculator
International Society of Sports Nutrition Position Stand: protein and exercise
Jäger R, Kerksick CM, Campbell BI, et al. · Journal of the International Society of Sports Nutrition · 2017
The frequently cited range of 1.4 to 2.0 g/kg/day for people who train.
https://doi.org/10.1186/s12970-017-0177-8
Used by: Protein calculator
Prediction of percent body fat for U.S. Navy men from body circumferences and height
Hodgdon JA, Beckett MB · Naval Health Research Center, Report No. 84-11 · 1984
The circumference method for men, with measurements in inches.
https://apps.dtic.mil/sti/citations/ADA144618
Used by: Body fat (Navy method)
Prediction of percent body fat for U.S. Navy women from body circumferences and height
Hodgdon JA, Beckett MB · Naval Health Research Center, Report No. 84-29 · 1984
The circumference method for women, with measurements in inches.
https://apps.dtic.mil/sti/citations/ADA148914
Used by: Body fat (Navy method)
Gentamicin therapy
Devine BJ · Drug Intelligence & Clinical Pharmacy · 1974
Devine's “ideal” weight formula, first used for gentamicin dosing.
https://doi.org/10.1177/106002807400801104
Used by: Reference weight
NIST Guide to the SI, Appendix B: Conversion Factors
National Institute of Standards and Technology
Conversion factors (inch = exactly 25.4 mm; pound = exactly 0.45359237 kg).
https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors
Used by: Length converter, Weight (mass) converter, Temperature converter, Area converter, Volume converter, Speed converter, Data storage converter, Pressure converter, Energy converter, Power converter, Duration converter, Angle converter, Fuel cost, Fuel economy, Appliance electricity cost, EV charging cost
The International System of Units (SI)
Bureau international des poids et mesures (BIPM)
Definitions of the International System of Units.
https://www.bipm.org/en/measurement-units
Used by: Length converter, Weight (mass) converter, Temperature converter, Area converter, Volume converter, Speed converter, Data storage converter, Pressure converter, Energy converter, Power converter, Duration converter, Fuel economy
Les Éléments, Livre I (théorème de Pythagore) et Livre VII (algorithme d’Euclide)
Tradition mathématique euclidienne
The historical reference for the Pythagorean theorem and the GCF.
https://www.claymath.org/library/historical/euclid/
Used by: GCF (GCD), LCM, Pythagorean theorem, GPA calculator, Weighted GPA, Grade needed on the final, Grade as a percent, Course grade by category, Cumulative GPA, Attendance rate
Metrica (formule de Héron)
Héron d’Alexandrie · Tradition mathématique grecque
The area of a triangle from its three sides.
https://mathworld.wolfram.com/HeronsFormula.html
Used by: Triangle area
Crédit immobilier : modalités de remboursement
Service-Public.fr
The French mortgage framework, excluding the amortization formula, which is mathematical.
https://www.service-public.fr/particuliers/vosdroits/F16152
Used by: Mortgage
Taux des crédits aux particuliers
Banque de France
Context on interest rates, not a source for a formula.
https://www.banque-france.fr/statistiques/credit/credit-aux-particuliers
Used by: Mortgage
Repères nutritionnels du PNNS
Santé publique France / ANSES
French dietary guidelines, distinct from individual calculations.
Used by: Macro calculator
Human energy requirements
FAO / WHO / UNU · 2004
The international framework for energy requirements. The 1.2–1.9 activity factors are widely used Harris-Benedict coefficients, distinct from the detailed PAL values in this report.
https://www.fao.org/3/y5686e/y5686e00.htm
Used by: Calorie calculator, TDEE calculator
Guidelines for Exercise Testing and Prescription — MET concept
American College of Sports Medicine
The MET framework for exercise intensity. The pace calculator does not use METs; it only converts distance and time.
Used by: Running pace
NF EN 206 — Béton : spécification, performance, production et conformité
AFNOR / CEN
The concrete standard. The 2,400 kg/m³ density is a typical value for normal-weight concrete, not a requirement of the standard for every mix.
Used by: Concrete calculator
Pratiques courantes de calepinage et pertes en travaux (peinture, sols, granulats)
Documents techniques unifiés / fiches fabricants
Waste allowances (5–10%) and paint coverage (~10 m²/L) are jobsite and datasheet orders of magnitude, not physical constants.
Used by: Gravel calculator, Mulch calculator, Paint calculator, Flooring calculator
Jours fériés en France
service-public.fr
The list of statutory public holidays in mainland France.
https://www.service-public.fr/particuliers/vosdroits/F2405
Used by: Business days
Astronomical Algorithms — calcul de la date de Pâques (algorithme de Meeus, calendrier grégorien)
Jean Meeus · Willmann-Bell · 1991
Used for Easter Monday, Ascension and Whit Monday.
https://aa.usno.navy.mil/faq/easter
Used by: Business days
Circle, area and circumference
Wolfram MathWorld
Area πr² and circumference 2πr, with π the mathematical constant.
https://mathworld.wolfram.com/Circle.html
Used by: Circle area, Angle converter
When a page has no source
Mathematical identities do not always have a publication behind them: the square on the hypotenuse or Euclid's algorithm is not cited like a clinical study. When that is the case, the calculator page says so explicitly instead of inventing a reference.