It's about one-one-hundredth as heavy as The Space Shuttle
In other words, 10,000,000 grains is 0.0091 times the weight of The Space Shuttle, and the weight of The Space Shuttle is 110 times that amount.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 1,100,000,000 grains. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 300,000,000 grains.
It's about one-one-hundred-fiftieth as heavy as a Blue Whale
It's about 200 times as heavy as a Brick
In other words, 10,000,000 grains is 220 times the weight of a Brick, and the weight of a Brick is 0.0045 times that amount.(Standard, traditional face brick - 1,900 cu. cm (120 cu. in))
A standard, traditional face brick weighs an average of 45,000 grains. The steeple of the Church of St. Martin in Landshut, Germany is said to be the tallest brick tower in the world at a height of 130.6 m (428.5 ft) and was constructed using an estimated 650,000 bricks.
It's about one-two-hundred-fiftieth as heavy as a House
In other words, 10,000,000 grains is 0.00415 times the weight of a House, and the weight of a House is 241 times that amount.(149 sq. m, single-level, unfurnished)
A 149 sq. m (1,600 sq. ft), single-story, unfurnished house (without extensive masonry) of the type commonly found in America would weigh approximately 2,410,000,000 grains, based on the weight of the included materials. In contrast, a yurt — a type of dwelling structure popular among nomadic peoples of East Asia — typically weighs less than 7,100,000 grains.
It's about 300 times as heavy as a Chihuahua
In other words, 10,000,000 grains is 288 times the weight of a Chihuahua, and the weight of a Chihuahua is 0.00347 times that amount.(a.k.a. Chihuahue(o) (FCI standard)
The F&d&ration Cynologique Internationale (FCI) calls for Chihuahuas to weigh about 34,700 grains. Relative to their body sizes, Chihuahuas have the largest brain size of any dog breed.
It's about 500 times as heavy as a Human Brain
In other words, the weight of a Human Brain is 0.00208 times 10,000,000 grains.(adult)
The average weight of an adult human brain is between 20,800 grains. In humans and primates, sight and vision utilize about 30 different parts of the brain which together account for about half of the brain's size.
It's about 650 times as heavy as a liter of Water
In other words, 10,000,000 grains is 647.9710 times the weight of a liter of Water, and the weight of a liter of Water is 0.001543279 times that amount.(fresh; 4° C / 39.2° F; maximum density)
Contrary to popular belief, 1 liter (0.0.264172052358148 gal) of water at 4° C / 39.2° F (its point of maximum density) weighs 15,432.790 grains rather than 1 kg exactly. The total volume of water on the planet Earth is about 13,590,000,000,000,000,000 (13.59 quntillion) L (3,590,000,000,000,000,000 gallons).