It's about 650,000 times as heavy as a Nail
It's about 0.0000007 times as heavy as The Golden Gate Bridge
In other words, 516 kilograms is 0.0000006410 times the weight of The Golden Gate Bridge, and the weight of The Golden Gate Bridge is 1,560,000 times that amount.(San Francisco, California and Marin County, California) (Post 1986 weight reduction; total weight of bridge, anchorage, and approaches)
Following the completion of the 1986 project to eliminate excess material, the total weight of the Golden Gate Bridge — including its anchorages and approaches — is 805,000,000 kilograms. The two main cables in the spanning the bridge are spun out of a total of 129,000 km (80,200 mi) of wire.
It's about 3,000,000 times as heavy as a Raindrop
In other words, the weight of a Raindrop is 0.000000300 times 516 kilograms.(a.k.a. drop, a.k.a. droplet) (average)
The weight of a raindrop depends heavily on the type of weather, but averages about 0.0002 kilograms. The familiar teardrop shape of a raindrop is actually an optical illusion, caused by the reflection of the light and the motion of the drop.
It's about 0.00000009 times as heavy as The Great Pyramid of Giza
In other words, 516 kilograms is 0.0000000870 times the weight of The Great Pyramid of Giza, and the weight of The Great Pyramid of Giza is 11,000,000 times that amount.(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt)
The Great Pyramid of Giza has an estimated mass of 5,900,000,000 kilograms. The 2,300,000 stones used in the construction of the pyramid weighed an average 2,300 kilograms and were quarried from distances of up to 805 km (500 mi) away.
It's about 25,000,000 times as heavy as a Grain of Rice
In other words, the weight of a Grain of Rice is 0.0000000400 times 516 kilograms.(conventional; US; long-, medium-, and short-gran varieties; uncooked)
With great differences in variety, the average among a sampling of common short-, medium- and long-grain rices finds that a single grain weighs about 0.0000210 kilograms before cooking. A staple through most of human history, archaeological evidence indicates that the earliest rice cultivation was about 11,500 years ago.
It's about 100,000,000 times as heavy as a Grain of Sand
In other words, 516 kilograms is 120,000,000 times the weight of a Grain of Sand, and the weight of a Grain of Sand is 0.00000000830 times that amount.(medium grain)
With tremendous variety in the size of grain and the component material, grains of sand weigh an average of 0.00000440 kilograms. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 15.10 m (49.55 ft) in height.
It's about 150,000,000 times as heavy as a Sesame Seed
In other words, 516 kilograms is 142,000,000 times the weight of a Sesame Seed, and the weight of a Sesame Seed is 0.000000007040 times that amount.(Sesamum indicum)
A sesame seed weighs approximately 0.000003640 kilograms. The McDonald's Big Mac sandwich, which is well-known for its sesame seed top bun, accounts for the consumption of an estimated 2,009.32 kg of sesame seeds each day.