rule of thumb / empirical value
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rule of thumb
A value, rule, or insight that is based not on theoretical calculation but on practical experience.
Als Erfahrungswert gilt, dass man für diese Wanderung etwa vier Stunden einplanen sollte.
As a rule of thumb, you should plan about four hours for this hike.
This word is made up of "Erfahrung" (experience) and "Wert" (value), connected by an "s". It literally means a "value that comes from experience."
Der Mechaniker kennt aus Erfahrungswert die häufigsten Fehlerquellen.
The mechanic knows the most common sources of errors from experience.
A very common phrase is "Als Erfahrungswert gilt, dass ..." (as a rule of thumb, ...). This sentence introduces a rule or observation that is based on practice.
Als Erfahrungswert gilt, dass man im Winter mehr Heizkosten hat.
As a rule of thumb, heating costs are higher in winter.
"Erfahrungswert" is often used with verbs such as "beruhen auf" (to be based on), "basieren auf" (to be based on), or "sich stützen auf" (to rely on) in order to emphasize the basis of a statement.
Unsere Planung für das Projekt basiert auf den Erfahrungswerten der letzten Jahre.
Our planning for the project is based on the empirical values from recent years.
rule of thumb
A Faustregel is a deliberately simplified and approximate rule for making a quick estimate or decision. An Erfahrungswert is also based on practical experience, but it can be a value determined more precisely or a broader insight.
Unser Erfahrungswert aus früheren Feiern liegt bei 95 Gramm Reis pro Person.
Our figure based on experience from previous parties is 95 grams of rice per person.
Als Faustregel rechnen wir für die Feier mit etwa hundert Gramm Reis pro Person.
As a rule of thumb, we allow for about 100 grams of rice per person for the party.
