Convertitore di unità internazionali v. 3.2

Convertire facilmente tra UI e g/mg/µg



Lista di sostanze

Manuale utente

Per convertire una quantità di una sostanza (o ingrediente farmaceutico attivo) sequire i passi seguenti:

  • Nel campo d'inserimento Gruppo di sostanze selezionare un gruppo richiesto.
  • Nel campo d'inserimento Sostanza selezionare una sostanza dal gruppo già selezionato.
  • Nel campo d'inserimento Quantità digitare la quantità della tua sostanza (o ingrediente farmaceutico attivo).
  • Nel campo d'inserimento Da selezionare le unità d'origine.
  • Nel campo d'inserimento A selzionare le unità desiderate.
  • Nel campo d'inserimento Decimali digitare una quantità da mostrare nel risultato.
  • Cliccare sul pulsante Convertire Il risultato apparirà sotto il pulsante

Se hai inserito, per esempio, 1000000, e hai ottenuto 0.00 come il risultato, aumentare la precisione a 6-7 decimali o selzionare unità più piccole. Certe sostanze hanno fattori di conversione molto bassi in certe direzioni, perciò anche il risultato sara molto basso. Per comodità, il risultato non arrotondato apparirà sotto il risultato arrotondato.

Spero che questo convertitore ti sarà utile.

Information about «International units»

International unit (IU) — In pharmacology, the international unit is a unit of measurement for the amount of a substance; the mass or volume that constitutes one international unit varies based on which substance is being measured, and the variance is based on the biological activity or effect, for the purpose of easier comparison across substances. International units are used to quantify vitamins, hormones, some medications, vaccines, blood products, and similar biologically active substances. Many biological agents exist in different forms or preparations (e.g. vitamin A in the form of retinol or beta-carotene). The goal of the IU is to be able to compare these, so that different forms or preparations with the same biological effect will contain the same number of IUs. To do so, the WHO Expert Committee on Biological Standardization provides a reference preparation of the agent, arbitrarily sets the number of IUs contained in that preparation, and specifies a biological procedure to compare other preparations of the same agent to the reference preparation. Since the number of IUs contained in a new substance is arbitrarily set, there is no equivalence between IU measurements of different biological agents. For instance, one IU of vitamin E cannot be equated with one IU of vitamin A in any way, including mass or efficacy. Despite its name, IU is not part of the International System of Units used in physics and chemistry. The IU should not be confused with the enzyme unit, also known as the international unit of enzyme activity and abbreviated as U.

International unit (IU) — Internationally agreed-upon standards are necessary to compare the potency of various biologically assayed compounds in terms of their activity. If it is not possible to purify chemically the substance to be bioassayed, a stable standard solution has to be employed for comparison. Standards for sera are held at the State Serum Institute, Copenhagen, the National Institute for Medical Research at Mill Hill, UK. and by the WHO. An International Unit is defined as a particular quantity of the standard preparation (one IU of tetanus antitoxin is 0.1547 mg of a preparation held in Copenhagen).

New in version 3.2

  • Added translations and language selection for Farsi (32%), Italian (29%), Spanish (14%). Thank you guys, who made these translations!
  • Added translations and language selection for French (100%), Turkish (19%), Chinese (18%). Thank you guys, who made these translations!
  • Added colistimethate sodium (conversion to colistin base or vice versa). This conversion required in the case of inhalation administration of colistimethate sodium. The conversion works either in the direction of [IU of colistimethate sodium in mg/g of colistin base) or in the direction of [mg/g of colistin base in IU of colistimethate sodium].
  • Reviewed all substances and their conversion factors. Added links on reliable sources for each substance.
  • Deleted controversial substances with not confirmed data.
  • Substances divided into groups.
  • Edited names of some substances.
  • Added synonyms for some substances.
  • Added unrounded result to the output. It is useful when you get zero result. Unrounded result will show that you have to change target units to smaller (for example from mg to mcg).
  • Converter is optimized for mobile devices.


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