die Reichweite
range
The maximum distance that a vehicle, projectile, or signal can travel without interruption.
Das neue Elektroauto hat eine Reichweite von über 500 Kilometern.
The new electric car has a range of over 500 kilometers.

range / reach
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range
The maximum distance that a vehicle, projectile, or signal can travel without interruption.
Das neue Elektroauto hat eine Reichweite von über 500 Kilometern.
The new electric car has a range of over 500 kilometers.

The word is made up of the verb 'reichen' (to reach) and the noun 'Weite' (width/distance). So it literally describes the distance or range that something can reach.
Die Reichweite des neuen Teleskops ist beeindruckend.
The range of the new telescope is impressive.
In technical contexts, 'Reichweite' (range) is often used with vehicles or signals. Typical formulations are 'eine Reichweite von X Kilometern haben' (to have a range of X kilometers) or 'die Reichweite des WLANs' (the range of the Wi-Fi).
Die maximale Reichweite der Drohne beträgt zwei Kilometer.
The drone's maximum range is two kilometers.
In the world of media and marketing, 'Reichweite' (reach) is used to describe the number of people reached. Common verbs here are 'Reichweite erzielen' (to achieve reach), 'aufbauen' (to build), or 'erhöhen' (to increase).
Mit guter Suchmaschinenoptimierung können wir unsere Reichweite steigern.
With good search engine optimization, we can increase our reach.
When referring to the physical area you can reach with your arms, the expressions 'in Reichweite' (within reach) and 'außer Reichweite' (out of reach) are very common.
Bewahren Sie Medikamente immer außer Reichweite von Kindern auf.
Always keep medication out of reach of children.
edition / condition
'die Auflage' and 'die Reichweite' can both be important for newspapers, magazines, or advertising. But they do not mean the same thing. 'Die Auflage' says how many copies are printed. 'Die Reichweite' says how many people a medium or post actually reaches. They can be confused because a high print run can often also mean high reach. Even so, the difference is important: 'die Auflage' counts printed copies, while 'die Reichweite' counts people reached.

Durch den Beitrag im Internet hat die Kampagne eine große Reichweite bekommen.
Through the online post, the campaign gained a large reach.
Die Zeitung erscheint heute mit einer Auflage von 50.000 Exemplaren.
The newspaper is being published today with a print run of 50,000 copies.