How to Measure a Thermal Label

Measure label width, height, gap, and roll dimensions before choosing a replacement.

Measure the label face first, then confirm roll/core requirements.

Width and height

Measure the actual printable label dimensions—not the backing liner.

Gap and feed direction

Some printers depend on consistent spacing or sensing marks.

Roll fit

Confirm core diameter, roll diameter, and whether the printer holds rolls internally or externally.