Steve from Minecraft is ridiculously strong.
So, let's get started. The heaviest item in Minecraft is the Notch Apple.
These are made by crafting 8 blocks of gold and an apple. 1 block in Minecraft = 1 cubic meter.
1 cubic meter of gold (real-world) = ~42,000 pounds.
42,000 x 9 = 378000 pounds
So one Notch apple is equal to roughly 378000 pounds, plus a negligible amount for the apple itself.
There's a type of chest in Minecraft called the Shulker Box.
It's just like a normal chest, but with one important difference. If you destroy it with items inside, it retains the items for when you place it down again.
Notch apples can stack up to 64. A shulker box can fit 27 stacks.
378000 pounds x 64 = 24192000 pounds
24192000 pounds x 27 = 653184000 pounds
So one shulker box could fit 653184000 pounds worth of apples inside. But Steve has an inventory and a hotbar, comprising of a total of 36 slots, plus a left hand.
653184000 x 37 = 24167808000 pounds = 12083904 tons.
So Steve can hold roughly twelve million tons, with no difference on run speed or jump height. That makes him roughly four million times stronger than the world's strongest man (by weight lifted).
It also means that Steve can lift roughly 1,600 Eiffel Towers and not break a sweat. Or 24 Burj Khalifas. Or almost 2 million African Bush Elephants, the largest land animal in the world. Or almost 78 thousand blue whales.
