Yosemite National Park is about 1.6 times smaller than Grand Canyon National Park.

Grand Canyon National Park is approximately 4,863 km² (1,878 sq mi), while Yosemite National Park is approximately 3,027 km² (1,169 sq mi), making Yosemite National Park 62.25% the size of Grand Canyon National Park.
Tip: This to-scale comparison of Grand Canyon National Park vs. Yosemite National Park uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Yosemite National Park vs. Grand Canyon National Park

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