Unit Conversion Tool

Inch to MM Converter

Convert between various units with ease

Inch to MM Converter – Convert Inches to Millimeters Easily

Inches and millimeters are two widely used units of length measurement. While inches belong to the imperial system and are commonly used in the United States, Canada, and the UK, millimeters are part of the metric system, which is the global standard for precision measurements.

If you work in construction, engineering, or design, using an inch to mm converter ensures accuracy in all your projects.

Conversion Formula

1 inch = 25.4 millimeters
Or,
1 millimeter = 0.03937 inches

To convert inch to mm, multiply the number of inches by 25.4.

How to Convert Inch to MM?

Use this simple formula:

Millimeters=Inches×25.4

Example Conversions:

  • Convert 1 inch to mm
    1 × 25.4 = 25.4 mm
  • Convert 5 inches to mm
    5 × 25.4 = 127 mm
  • Convert 10 inches to mm
    10 × 25.4 = 254 mm
  • Convert 20 inches to mm
    20 × 25.4 = 508 mm

Inch to MM Conversion Table

Inches (in)

Millimeters (mm)

1

25.4

2

50.8

5

127

10

254

20

508

50

1270

100

2540

250

6350

Practical Applications of the Inch to MM Converter

  1. Engineering & Manufacturing

    • Many industrial tools, machine parts, and blueprints use inches, while precise engineering components require millimeter measurements for accuracy.
  2. Construction & Architecture

    • Converting inches to millimeters ensures compliance with metric building codes in international projects and detailed construction plans.
  3. Interior Design & Home Improvement

    • Furniture, fixtures, and decor measurements often need conversion from inches to millimeters to ensure a perfect fit.
  4. Automotive & Aviation

    • Car tires, engine components, and aircraft specifications frequently use both inches and millimeters, making accurate conversion essential.
  5. Science & Medical Fields

    • Medical instruments, lab measurements, and scientific research often require millimeter precision instead of inches.

How to Convert Inches to Other Units?

Length Units

Conversion

Feet (ft)

1 inch = 0.0833 ft

Yards (yd)

1 inch = 0.0278 yd

Centimeters (cm)

1 inch = 2.54 cm

Meters (m)

1 inch = 0.0254 m

Kilometers (km)

1 inch = 0.0000254 km

Differences Between Inches and Millimeters

Aspect

Inches (in)

Millimeters (mm)

Definition

A unit of length in the imperial system.

A unit of length in the metric system.

Symbol

in

mm

Conversion

1 inch = 25.4 mm

1 mm = 0.03937 inches

Usage

Common in the US, UK, and Canada.

Used globally in engineering, manufacturing, and science.

Applications

Used in screen sizes, furniture, and tools.

Used in precision measurements and industrial design.

Why Use Our Inch to MM Converter?

  • Fast & Accurate: Get instant inch-to-mm conversions with precise results.
  • Simple & User-Friendly: Just enter inches and get millimeters instantly.
  • Ideal for Engineers, Designers & DIYers: Perfect for professional and personal use.

Use this inch to mm converter for quick and reliable length conversions every time!