All Grains of Sand on Earth

Roughly 7.5 quintillion grains covering every beach and desert/Collective & Conceptual

Scientists estimate there are approximately 7.5 x 10^18 grains of sand on Earth, covering beaches, deserts, and riverbeds worldwide. If you piled all of them together, the total volume would be roughly 7.5 billion cubic meters, enough to bury Manhattan under about 100 meters of sand. This number is often compared to the estimated number of stars in the observable universe, which is likely 10 to 100 times greater, making the cosmos even more humbling than a beach is vast.