Pixel Circle / Oval Generator (Minecraft)
I would generally recommend starting from the center of the circle, then drawing four straight lines towards the points where you want the circle to be placed. Make sure the lines are of equal length to maintain symmetry.
Then go to https://minecraftcirclesgenerator.com/, enter the size needed and voilà:
It turned out as round as possible in Minecraft! :)
I used it to build my water fountain. (Tip: When building a spiral staircase, start with the smallest circle on the inner side to ensure it's connected, then work your way out, arranging the rest of the stairs around it.)

















