31 mm to Inches on a Ruler
31 millimeters is equal to 1.2 inches on a ruler.
The place marked in red shows 1.2 inches, which is equal to 31 millimeters on the ruler.
Try these similar conversions:
32 mm to inches on a ruler
Convert 32 millimeters to inches and see it on a ruler.
30 mm to inches on a ruler
Convert 30 millimeters to inches and see it on a ruler.