The oceans cover approximately * square kilometers of the Earth's area. High seas represented the highest share of the maritime area, covering over *** square kilometers.
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National Oceanic and Atmospheric Administration. (September 3, 2021). Areas of the Earth covered by the oceans worldwide, by maritime zone (in million square kilometers) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/1334891/areas-of-the-earth-covered-by-the-oceans-by-maritime-zone/
National Oceanic and Atmospheric Administration. "Areas of the Earth covered by the oceans worldwide, by maritime zone (in million square kilometers)." Chart. September 3, 2021. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/1334891/areas-of-the-earth-covered-by-the-oceans-by-maritime-zone/
National Oceanic and Atmospheric Administration. (2021). Areas of the Earth covered by the oceans worldwide, by maritime zone (in million square kilometers). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/1334891/areas-of-the-earth-covered-by-the-oceans-by-maritime-zone/
National Oceanic and Atmospheric Administration. "Areas of The Earth Covered by The Oceans Worldwide, by Maritime Zone (in Million Square Kilometers)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 3 Sep 2021, /statistics/1334891/areas-of-the-earth-covered-by-the-oceans-by-maritime-zone/
National Oceanic and Atmospheric Administration, Areas of the Earth covered by the oceans worldwide, by maritime zone (in million square kilometers) ÌÇÐÄÆƽâ°æ, /statistics/1334891/areas-of-the-earth-covered-by-the-oceans-by-maritime-zone/ (last visited August 01, 2026)
Areas of the Earth covered by the oceans worldwide, by maritime zone (in million square kilometers) [Graph], National Oceanic and Atmospheric Administration, September 3, 2021. [Online]. Available: /statistics/1334891/areas-of-the-earth-covered-by-the-oceans-by-maritime-zone/
