No, nutmeg is not the same as cinnamon, and they are commonly used together in a variety of sweet and savory recipes. However, that being said, you can use nutmeg to substitute for cinnamon if you find yourself without it.
Although they're both delicious, versatile, and can work well together, there are some significant differences when it comes to nutmeg and cinnamon.
In terms of volume, you can use much more cinnamon than nutmeg. Nutmeg is ‘a dash of’ kind of spice, while cinnamon can be mixed with butter or sugar and can be used in larger quantities without overpowering the dish.
Whereas cinnamon is from the bark of a tree, nutmeg is the seed of the nutmeg fruit. While the cinnamon bark is stripped from the tree and dried, the seed of the nutmeg fruit is dried in its shell and then ground or sold whole.