Keeping pixel art 'pixels' the same size

Hi all,

I am working on a pixel art game with a variety of different sized objects. Each object is made of relatively large pixels, however, they are all created at different sizes.

For example, I would have a coin displayed on the screen with 15px x 15px dimensions. However, this coin is created as 5x5 pixels (because they are bigger in pixel art), which is then scaled up via my image creating program (GIMP).

This basically triples the size of each individual pixel. This works great, except for when my objects have different sizes. When I create a character, I want it to have the same pixel size as the 5x5 “big pixel” coin, but have a larger area to work with/display in game.

As seen below (very bad example, I know), some of the pixels seem much larger than others (due to the different dimensions when making the image).

The larger pixels at the top would be the coin pixels, and the smaller ones would be the characters. I want them to both be the same size (somehow).

XIORNFC.png

I know this is a very confusing explanation, so please let me know if there is anything I should do differently in describing it.

Is there any way to create a standard pixel size that is constant throughout the game despite creating images at different pixel dimensions (ex 200x100 and 16x16)

Thanks