Hong Kong:
733 km

Howland Island:
6.4 km

Hungary:
0 km (landlocked)

Iceland:
4,988 km

India:
7,000 km

Indian Ocean:
66,526 km

Indonesia:
54,716 km

Iran:
2,440 km; note - Iran also borders the Caspian Sea (740 km)

Iraq:
58 km

Ireland:
1,448 km