export design wrong dimensions

[Gaming26374834a52w]

hi Everyone 
i have a problem with illustrator when i finish my t shirt design 4500x5400px and export it as a png
the image i get is so big 18750x22500px... i dont know aht to do please help me

[Mylenium]

Make sure your document DPI and the export DPI match.

Mylenium

[Monika Gause]

Make sure your document DPI and the export DPI match.

By @Mylenium

Illustrator documents don't have a resolution.

Ton posted the correct answer already.

[Ton Frederiks]

You should export it at 72 ppi instead of 300 ppi, which makes Illustrator create more pixels.

[Gaming26374834a52w]

amazon suggest to export the design at 300 ppi not 72

[Monika Gause]

Amazon doesn't understand resolution.

They can either give you a physical size and then a resolution to accompany it. Those two combined will lead to pixel dimensions (that's just math).

Or they can give you the pixel dimensions directly.

[Ton Frederiks]

If you want to keep the amount of pixels but change the resolution without changing the amount of pixels, just go in Photoshop to Image > Image Size... and set the Resolution to 300 Pixels/Inch and Uncheck Resample. Save the file.

On a Mac you can also change the resolution without resampling with the Preview app with Tools > Adjust Size...