It's about as heavy as The Heart of a Blue Whale
It's about nine-tenths as heavy as a cubic meter of Snow
In other words, 3,100,000 grains is 0.870 times the weight of a cubic meter of Snow, and the weight of a cubic meter of Snow is 1.10 times that amount.(Freshly fallen, standard conditions; measurements taken in Norway, 1965-68)
One cubic meter of freshly fallen snow under standard conditions weighs an average of 3,500,000 grains. Assembled in 2008, the world record largest snowman was constructed of 91,000,000,000 grains of snow and stood 37.21 m (122.1 ft) tall.
It's about one-and-one-fifth times as heavy as a Reindeer
In other words, 3,100,000 grains is 1.210 times the weight of a Reindeer, and the weight of a Reindeer is 0.8260 times that amount.(for Rangifer tarandus granti, adult, bull) (a.k.a. Caribou) ()Rangifer tarandus)
An adult, male reindeer weighs between 2,550,000 grains. Reindeer undertake a lengthy annual migration, with some herds traveling up to 5,000 km.
To all those observing, Merry Christmas from the Measure of Things.
It's about four-fifths as heavy as a Pig
In other words, the weight of a Pig is 1.30 times 3,100,000 grains.(Domestic pig, Sus scrofa domesticus, a.k.a. S. domesticus) (adult)
Domestic pigs weigh between 3,900,000 grains. The titular character "Babe the pig" in the 1995 family film was played by 48 different American Yorkshire piglets due to the length of filming and the rate at which piglets reach adulthood.
It's about one-and-three-tenths times as heavy as a Panda Bear
In other words, the weight of a Panda Bear is 0.770 times 3,100,000 grains.(a.k.a. Giant Panda, Ailuropoda melanoleuca)(Adult, male)
An adult, male Giant Panda weighs up to 2,300,000 grains. Despite having the digestive system of a carnivore, the panda eats only bamboo and must eat up to 99,000 grains of it per day to compensate for the limited energy the plant provides.
It's about half as heavy as a Horse
In other words, 3,100,000 grains is 0.480 times the weight of a Horse, and the weight of a Horse is 2.10 times that amount.(Equus ferus caballus) (Arabian, adult)
n Arabian riding horse (or similar breed) weighs between 6,500,000 grains. During races, horses must carry jockeys and their equipment, which in the Kentucky Derby, for example, can weigh up to 840,000 grains.
It's about half as heavy as a Grand Piano
In other words, 3,100,000 grains is 0.450 times the weight of a Grand Piano, and the weight of a Grand Piano is 2.20 times that amount.(for Steinway & Sons, Model D Concert Grand Piano)
A Grand Piano, of the kind used for concert performances in large music halls, weighs 6,900,000 grains. Well-made pianos such as this may last 75 to 100 years.