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1 mm to inches

Updated July 2026

1 mm equals 0.03937 in

1 millimeter = 0.03937 in. That is how many inches there are in 1 millimeter. Enter any value in the free length converter to convert millimeters to inches (and every other unit) instantly — it runs privately in your browser.

Formula: Multiply by 0.03937 — 1 millimeter = 0.03937 inches. So 1 × 0.03937 = 0.03937 in.

mm to inches conversion table

millimeter (mm)inches (in)
0.25 mm0.00984252 in
0.5 mm0.019685 in
0.75 mm0.029528 in
1 mm0.03937 in
1.25 mm0.049213 in
1.5 mm0.059055 in
1.75 mm0.068898 in

Frequently asked questions

How many inches is 1 millimeter?
1 millimeter is 0.03937 inches. Multiply mm by 0.03937 to get inches.
What is 1 mm to inches?
1 millimeter = 0.03937 in.
How do you convert mm to inches?
Multiply by 0.03937 — 1 millimeter = 0.03937 inches. So 1 × 0.03937 = 0.03937 in.

Other mm to inches conversions

Convert 1 mm to other units