關於「Haversine distance calculator」標籤，搜尋引擎有相關的訊息討論：

Getting distance between two points based on latitude/longitudestackoverflow.com › questions › getting-distance-between-...Haversine - Distance - vCalcwww.vcalc.com › wiki › vcalc › haversine-distanceCalculate distance and bearing between two Latitude/Longitude ...www.movable-t