Kreisflächen-Rechner

Zeichnen Sie einen Kreis auf einer Satellitenkarte, um Fläche und Radius sofort zu messen. Ergebnisse in Acres, Hektar, Quadratfuß und mehr.

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Manueller Radius

Tipps

  • 1.Auf die Karte klicken, um einen Mittelpunkt zu setzen
  • 2.Erneut klicken, um den Radius festzulegen, oder manuell eingeben
  • 3.Fläche und Umfang werden sofort berechnet
  • 4.Suchleiste verwenden, um zu einem beliebigen Standort zu navigieren

Frequently Asked Questions

How is circle area calculated on a map?

The circle area is calculated using the standard formula A = πr², where r is the radius measured as the great-circle distance between the center point and edge point on the Earth surface. This accounts for the curvature of the Earth for large circles.

What units can I measure circle area in?

You can view circle area in square meters, square kilometers, hectares, acres, square feet, and square miles. The radius and circumference can be displayed in meters, kilometers, feet, or miles.

Can I use this for center-pivot irrigation planning?

Yes! Center-pivot irrigation systems create circular fields. Enter the pivot arm length as the radius to calculate the irrigated area. A typical quarter-mile (402m) pivot irrigates about 125-130 acres (50.5 hectares).

How accurate is the map measurement?

Map measurements use the WGS84 ellipsoid model and are accurate to within a few meters for circles under 10 km radius. For very large circles, the spherical approximation may introduce small errors.

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