Ensure the tape is fully extended and lying flat on the surface being measured
Align the zero mark at the starting point of the measurement
Hold the tape firmly so it does not sag or shift
Read the measurement at the exact point where the other end meets the object
Use the correct scale: inches on top and centimeters on the bottom (if both are shown)
For inches, note the largest numbers for whole inches and the smaller ticks for fractions
For centimeters, note each centimeter number and the smaller ticks for millimeters
Read to the nearest smallest marked increment you can reliably distinguish
If the object ends between ticks, estimate between them consistently
Keep the tape straight and perpendicular to the object for accurate results
If measuring thickness or depth, measure from edge to edge without bending the tape
Record the value with units (e.g., 5.25 in or 12.3 cm)
If measuring length and width, repeat the process for each dimension separately