Inches → MM

0.315 inches to mm

0.315 inches equals 8.001 millimeters.

Millimeters

8.001 mm

Centimeters

0.8001 cm

Meters

0.008001 m

Feet

0.0263 ft

Inches (in)

Millimeters (mm)

8.001

1 in = 25.4 mm · tolerance ±0.0001

Nearby values

0.3125″0.31″0.3″0.35″0.27″0.375″0.25″0.24″0.39″0.23″

Precision

0.315

Inches

8.0 mm · max 100

Ref · 25.4 mm/in

Drag to set

Formula

mm = inches × 25.4
mm = 0.315 × 25.4 = 8.001

Why 0.315 in = 8.001 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.