let 現在地の緯度: Double = 135.5258549 let 現在地の経度: Double = 34.6873527 let 行き先の緯度: Double = 139.75313186645508 let 行き先の経度: Double = 35.68525668970075 let 現在地の位置情報: CLLocation = CLLocation(latitude: 現在地の緯度, longitude: 現在地の経度) let 行き先の位置情報: CLLocation = CLLocation(latitude: 行き先の緯度, longitude: 行き先の経度) 距離 = 行き先の位置情報.distanceFromLocation(現在地の位置情報)
![iOS/swiftで緯度・経度から2点間の距離を算出する - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/25715c93012d59507f6042f27e376601e0f99bbb/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9aU9TJTJGc3dpZnQlRTMlODElQTclRTclQjclQUYlRTUlQkElQTYlRTMlODMlQkIlRTclQjUlOEMlRTUlQkElQTYlRTMlODElOEIlRTMlODIlODkyJUU3JTgyJUI5JUU5JTk2JTkzJUUzJTgxJUFFJUU4JUI3JTlEJUU5JTlCJUEyJUUzJTgyJTkyJUU3JUFFJTk3JUU1JTg3JUJBJUUzJTgxJTk5JUUzJTgyJThCJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmcz0yYThmNzlkMzQ2ZjczMTViOThmMzNiYTA0M2E2ZTdlMg%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDB5bWl6JnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9MzYmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz0xNzA4NTVkMjkzNWYzN2ExZmVhYTkyYzE2ZTEzODI1Ng%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3Da700601d4fadad46ad5a47b259bdd5d1)