The meridian 124° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Indian Ocean, Australia, the Southern Ocean, and Antarctica to the South Pole. The 124th meridian east forms a great circle with the 56th meridian west.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 124th meridian east passes through: ! scope="col" width="130" | Co-ordinates ! scope="col" | Country, territory or sea ! scope="col" | Notes ! scope="row" style="background:#b0e0e6;" | Arctic Ocean ! scope="row" style="background:#b0e0e6;" | Laptev Sea ! scope="row" | 🇷🇺 ! scope="row" | ! scope="row" style="background:#b0e0e6;" | Yellow Sea ! scope="row" style="background:#b0e0e6;" | East China Sea ! scope="row" | 🇯🇵 ! scope="row" style="background:#b0e0e6;" | Pacific Ocean ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Albay Gulf ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Samar Sea ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Visayan Sea ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Cebu Strait ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Bohol Sea ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Celebes Sea ! scope="row" | 🇵🇭 ! scope="row" style="background:#b0e0e6;" | Celebes Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Molucca Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Banda Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Banda Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Savu Sea ! scope="row" | 🇮🇩 ! scope="row" style="background:#b0e0e6;" | Timor Sea ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" | 🇦🇺 ! scope="row" style="background:#b0e0e6;" | Indian Ocean ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica