Press F3 on Java Edition to open the debug screen and view your coordinates
Look for the XYZ values on the debug screen
Use the map screen on Bedrock Edition to see your coordinates if enabled
Turn on Show Coordinates in World Settings on Bedrock Edition
Check the top-left of the screen on Bedrock Edition after enabling coordinates
Use commands like /tp or /locate if cheats are enabled to find positions
Read the coordinates as X, Y, and Z
X shows east and west position
Y shows height
Z shows north and south position