Inches → MM

1.5 inches to mm

1.5 inches equals 38.1 millimeters.

Millimeters

38.1 mm

Centimeters

3.81 cm

Meters

0.0381 m

Feet

0.125 ft

Inches (in)

Millimeters (mm)

38.1

1 in = 25.4 mm · tolerance ±0.0001

Nearby values

1.45″1.57″1.4″1.6″1.38″1.375″1.625″1.37″1.35″1.65″

Precision

1.5

Inches

38.1 mm · max 100

Ref · 25.4 mm/in

Drag to set

Formula

mm = inches × 25.4
mm = 1.5 × 25.4 = 38.1

Why 1.5 in = 38.1 mm

The international inch is defined as exactly 25.4 mm, so any inches-to-mm conversion is a clean multiplication with no rounding required at this precision.