Loading... # C# 获取两经纬度之间的距离 ### [迷恋自留地](https://hunji.xyz/) ```csharp //地球半径,单位米 private const double EARTH_RADIUS = 6378137; /// <summary> /// 计算两点位置的距离,返回两点的距离,单位:米 /// 该公式为GOOGLE提供,误差小于0.2米 /// </summary> /// <param name="lng1">第一点经度</param> /// <param name="lat1">第一点纬度</param> /// <param name="lng2">第二点经度</param> /// <param name="lat2">第二点纬度</param> /// <returns></returns> public static double GetDistance(double lng1, double lat1, double lng2, double lat2) { double radLat1 = Rad(lat1); double radLng1 = Rad(lng1); double radLat2 = Rad(lat2); double radLng2 = Rad(lng2); double a = radLat1 - radLat2; double b = radLng1 - radLng2; double result = 2 * Math.Asin(Math.Sqrt(Math.Pow(Math.Sin(a / 2), 2) + Math.Cos(radLat1) * Math.Cos(radLat2) * Math.Pow(Math.Sin(b / 2), 2))) * EARTH_RADIUS; return result; } /// <summary> /// 经纬度转化成弧度 /// </summary> /// <param name="d"></param> /// <returns></returns> private static double Rad(double d) { return (double)d * Math.PI / 180d; } ``` ![](https://img-blog.csdnimg.cn/30529d3cc23e49c5bbc1498435b89839.png) ![](https://hunji.xyz/usr/uploads/2021/09/1130642358.png)![](https://hunji.xyz/usr/uploads/2021/09/448801402.png) 最后修改:2021 年 09 月 11 日 © 允许规范转载 打赏 赞赏作者 支付宝微信 赞 如果觉得我的文章对你有用,请随意赞赏