How big is a block in Minecraft?

My 7 year old has started playing Minecraft and I'm curious as to how big in "real" measurements a block is. Would be fun to make some scale models…

It has been well established that the length of the sides of one solid block in Minecraft is 1m, making its volume 1m³. This is supported by Gamepedia.

The height of the player is 1.8 blocks, thus 1.80 meters.

The wiki also mentions voxels, which is kind of like a 3D pixel. Because the blocks use 16x16 textures, you could consider a voxel to be 6.25 cm on a side and to have a volume of 244 cm³.

According to the Minecraft wiki, Minecraft uses the metric system. Each block is 1 cubic meter.

A block is 1 meter (approx. 3 feet), half the size of a full grown adult however if you plan on making replicas or recreations I would adjust the height for your 7 year old. (Assuming they’re shorter than about 5’5)