# How To Measure The Diameter Of A Ring? (Best solution)

To determine the inside diameter of an existing ring that comfortably fits your finger, you can use a ruler to measure the inside diameter of the ring as follows:

1. Measure straight across the interior of the ring from edge to edge with your ruler using the markings on the ruler. Take the diameter measurement in millimeters, and then use our measurement-conversion table to determine the ring size you need.

## How can you tell the diameter of a ring?

1. String or paper should be wrapped around the base of your finger. A pen should be used to indicate where the two ends meet. Using a ruler (mm), measure the length of the thread or paper. To determine your ring size, choose the measurement that is closest to your finger size on the ring size chart.

## Is there an app to measure ring size?

Here is the link to the Ring Sizing AppTM download page. It’s just as simple for Android and older iOS users to get started. Simply place your ring finger on the screen of your phone, tweak the sizing lines to define your finger, and you’ll have your ring size in seconds!

## How can I measure my ring size without a ruler?

Step 1: Cut a thin (but lengthy) strip of paper from the sheet of paper. In step two, wrap a piece of paper around your ring finger just below the knuckle (you’ll want to make sure your ring can easily fit over this section). Using the thin strip of paper, flatten it down and measure the distance between the mark you just created and the end of the paper you used.

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## How can I measure my ring size without measuring?

One of the quickest and most accurate methods of determining your ring size is to measure your finger using a piece of paper or thread as follows:

1. Cut out a strip of paper roughly 3/4 inch broad and 4 inches long to begin with. Then, using a marker, indicate where the paper overlaps with the targeted finger.

## How do you find a diameter?

The link between the diameter and the radius is expressed in the formula for determining the diameter. The diameter is made up of two segments, each of which is a radius in its own right. Thus, the formula is as follows: diameter = 2 * the measurement of the radius (in inches). It is possible to shorten this formula to d=2r.