Your comprehensive resource for millimeter measurements, conversions, and scientific applications
| Millimeters (mm) | Centimeters (cm) | Meters (m) | Kilometers (km) | Inches |
|---|---|---|---|---|
| 1 mm | 0.1 cm | 0.001 m | 0.000001 km | 0.03937 in |
| 10 mm | 1 cm | 0.01 m | 0.00001 km | 0.3937 in |
| 100 mm | 10 cm | 0.1 m | 0.0001 km | 3.937 in |
| Shape | Dimensions | Formula | Calculation | Result |
|---|---|---|---|---|
| Rectangle | Length: 50 mm, Width: 30 mm | Length × Width | 50 mm × 30 mm | 1,500 mm2 |
| Circle | Radius: 25 mm | p × r2 | p × (25 mm)2 | 1,963.50 mm2 |
| Triangle | Base: 40 mm, Height: 20 mm | (Base × Height) ÷ 2 | (40 mm × 20 mm) ÷ 2 | 400 mm2 |
| Shape | Dimensions | Formula | Calculation | Result |
|---|---|---|---|---|
| Cube | Side: 50 mm | Side3 | 50 mm × 50 mm × 50 mm | 125,000 mm3 |
| Rectangular Prism | Length: 40 mm, Width: 30 mm, Height: 25 mm | Length × Width × Height | 40 mm × 30 mm × 25 mm | 30,000 mm3 |
| Cylinder | Radius: 20 mm, Height: 50 mm | p × r2 × Height | p × (20 mm)2 × 50 mm | 62,831.85 mm3 |
A millimeter (mm) is a precise unit of length in the metric system, representing one-thousandth of a meter. It provides critical measurements in scientific and engineering disciplines.
Developed during the French Revolution, the millimeter is part of the metric system designed to create a standardized, decimal-based measurement approach used globally.
Millimeter measurements enable unprecedented precision in fields like microelectronics, medical research, aerospace engineering, and high-precision manufacturing.
Critical for designing circuit boards, semiconductor chips, and miniature electronic components where microscopic precision determines functionality.
Essential in surgical instruments, medical imaging equipment, prosthetics, and precision medical device manufacturing.
Fundamental in aircraft and spacecraft design, ensuring structural integrity, aerodynamics, and performance through millimeter-level precision.
1 mm = 0.1 cm
1 mm = 0.001 m
1 mm = 0.000001 km
1 mm = 0.03937 inches
1 mm = 0.00328 feet
1 mm = 0.00109 yards
Understanding millimeter conversions is crucial in international trade, scientific research, and global manufacturing standards.
Tape measures often display both imperial (inches) and metric (millimeters) units. On metric tape measures, each millimeter is represented by a small mark, with larger marks typically at 5mm and 10mm intervals.
When reading millimeters on a tape measure, count each small mark after the last centimeter (10mm) mark. Precision is essential in engineering, construction, and DIY projects where small measurement differences matter.
Understanding how millimeters relate to other units helps in accurate measurements:
Enter a measurement in millimeters to see what it looks like on a tape measure and learn more about this specific measurement.
10mm (1cm) marks 5mm marks 1mm marks
| Measurement (mm) | Common Reference | Approximate Size |
|---|---|---|
| 1 mm | Thickness of a credit card | Very small |
| 5 mm | Standard pencil diameter | Small |
| 10 mm | Diameter of a AA battery | 1 centimeter |
| 25 mm | Width of an adult thumb | Nearly 1 inch (25.4 mm) |
| 100 mm | Width of a standard smartphone | 10 centimeters |
Explore specific millimeter measurements to see how they appear on a standard tape measure:
Our comprehensive conversion chart makes it easy to translate between fractional inches, decimal inches, and millimeters. Ideal for woodworking, engineering, and precision projects.
| Fraction | Decimal | MM |
|---|---|---|
| 1/8" | 0.125" | 3.175mm |
| 1/4" | 0.250" | 6.350mm |
| 1/2" | 0.500" | 12.700mm |
Sample of full chart with 64 conversions
Find out exactly what specific millimeter measurements look like on a standard tape measure. Perfect for DIY projects, construction, and precision work.
Quick reference for frequently used measurement conversions between metric and imperial units.
Millimeters
Copyright 2024 - © Millimeters