50 millimeters Ruler — Actual Size
Use this ruler to visualize and measure exactly 50 millimeters on your screen. After calibrating with a credit card or reference object, the ruler above displays 50 mm at its true physical size on any device — phone, tablet, or desktop. For reference, 50 mm is close to the size of a golf ball (about 43mm) or a AA battery (50mm long).
Unit Conversions for 50 millimeters
5.00
centimeters
50.0
millimeters
1.97
inches
How to Measure 50 millimeters
- Open this page on the device you want to measure with and use the ruler displayed above.
- Calibrate by placing a credit card on the screen and adjusting the slider until the outline matches the card. This takes about 10 seconds.
- Place the object you want to measure against the ruler. The markings show centimeters, millimeters, and inches, so you can read 50 mm directly.
- Your calibration is saved in the browser, so the ruler remains accurate on your next visit.
About This Measurement
50 millimeters equals 50.0 millimeters or 1.97 inches. One millimeter is one-thousandth of a meter, or about 0.039 inches. Millimeters are used for precise measurements in engineering, manufacturing, and science.
A real-world object close to 50 mm in size is a golf ball (about 43mm) or a AA battery (50mm long). You can use such objects to get a quick sense of scale without a ruler.