Zeplin automatically converts units based on your project type and density.
- For iOS and macOS projects, measurements are in pt.
- For Android projects, measurements are in dp.
- For Web projects, measurements are in px.
For example, for a 640×1136px iOS design (which is 2x), a 20px measurement will be displayed as 10pt to help developers out, since they use 1x values while coding.
☝️As these resources are generated while exporting the designs, it's not possible to change the units later on.