Diagramm vs. Grafik
When translating the concept of a data chart into German, both Diagramm and Grafik are frequently used, but they have distinct boundaries. Diagramm is the precise, technical term for statistical charts and graphs. Grafik is a much broader term that means graphic or illustration, which can include charts but also encompasses infographics, drawings, and digital image files.
Diagramm
The word Diagramm specifically means chart, graph, or diagram. It is used to describe a structured, mathematical, or statistical representation of data, such as a pie chart, bar chart, or line graph.
Das Diagramm zeigt den Umsatz des letzten Jahres.
(The chart shows the revenue of the last year.)
Wir müssen ein Kreisdiagramm für die Präsentation erstellen.
(We need to create a pie chart for the presentation.)
In diesem Diagramm können Sie die steigenden Temperaturen sehen.
(In this graph you can see the rising temperatures.)
Der Lehrer bat uns, die gesammelten Daten in ein Diagramm einzutragen.
(The teacher asked us to enter the collected data into a chart.)
Das Balkendiagramm veranschaulicht die Unterschiede zwischen den beiden Gruppen.
(The bar chart illustrates the differences between the two groups.)
Grafik
The word Grafik means graphic, illustration, or visual. While it can be used to refer to a chart in a general sense, it is a broader term that often describes the visual element as a whole, such as an infographic, a digital image file in a document, or a general visual representation of information.
Die Grafik auf der zweiten Seite veranschaulicht den Prozess.
(The graphic on the second page illustrates the process.)
Der Artikel enthält eine interaktive Grafik über die Wahlergebnisse.
(The article contains an interactive graphic about the election results.)
Wir müssen die Auflösung dieser Grafik für den Druck verbessern.
(We need to improve the resolution of this graphic for printing.)
Diese Infografik erklärt komplexe medizinische Daten sehr einfach.
(This infographic explains complex medical data very simply.)
Bitte fügen Sie die Grafik mit den Verkaufszahlen in das Dokument ein.
(Please insert the graphic with the sales figures into the document.)
Summary
To choose the right word, consider the focus of your sentence. If you are specifically talking about the statistical or mathematical visualization of data, such as a bar or pie chart, use Diagramm. If you are referring to a broader visual element, an infographic, or the actual image file displaying the data, use Grafik.