10 mm to Inches
10 millimeters equals 0.393701 inches.
Quick answer
0.3937 inches
Exact-ish decimal0.393701 in
Nearest 1/6425/64 in
Millimeters10 mm
How this works
One inch equals exactly 25.4 millimeters, so divide 10 by 25.4. The fractional-inch value shown is a practical approximation using a denominator no larger than 64.
Use the full calculator →