# Inches To Ring Size Converter

Whether you're looking for a ring for your special day or wondering what's your **ring size in inches**, Omni's handy **inches to ring size converter** allows you to turn inches of ring size measurements into corresponding common **ring sizes**. Just read below **how to measure ring size in inches**, and our tool will convert the results to determine your ring size. Alternatively, you may use the **inches to ring size chart** below.

## How to measure ring size in inches

You can use several ways to measure what ring size you need:

- Take a
**ring mandrel**and one of your rings. - Slide the ring on the tool and read the correct
**ring size**from where it stops.

If you don't have a ring mandrel, use a homemade method **with a strip of paper or string**:

- Wrap it around the desired finger.
- Mark where the ends meet.
- Unwrap your paper or string and
**measure the marked distance**with a ruler. Congratulations, this is your**finger circumference**. - Divide the result by π (~3.14) to find the
**inside diameter**of your ring.

## Inches to ring size chart

Once you have measured the circumference of your finger, you can estimate the ring size using the **inches to ring size chart** below. This will help you compare your measurement to the standard **ring size equivalents**, such as the US ring size or UK ring size.

Inside Diameter | Inside Circumference | Sizes | ||||||
---|---|---|---|---|---|---|---|---|

inches | inches | UK & Australia | US & Canada | France | Germany | Japan | Switzerland | |

0.390 | 1.22 | _ | 0000 | _ | _ | _ | _ | |

0.442 | 1.39 | _ | 00 | _ | _ | _ | _ | |

0.454 | 1.43 | _ | 0 | _ | _ | _ | _ | |

0.474 | 1.49 | A | 1/2 | _ | _ | _ | _ | |

0.487 | 1.53 | B | 1 | _ | _ | 1 | _ | |

0.503 | 1.58 | C | 1 1/2 | _ | _ | _ | _ | |

0.520 | 1.63 | D | 2 | 41 1/2 | 13 1/2 | 2 | 1 1/2 | |

0.536 | 1.68 | E | 2 1/2 | 42 3/4 | 13 3/4 | 3 | 2 3/4 | |

0.553 | 1.74 | F | 3 | 44 | 14 | 4 | 4 | |

0.565 | 1.77 | G | 3 3/8 | 45 1/4 | _ | 5 | 5 1/4 | |

0.569 | 1.79 | G 1/4 | 3 1/2< | _ | 14 1/2 | _ | _ | |

0.573 | 1.80 | G 1/2 | 3 5/8 | _ | _ | 6 | _ | |

0.577 | 1.81 | H | 3 3/4 | 46 1/2 | _ | _ | 6 1/2 | |

0.585 | 1.84 | H 1/2 | 4 | _ | 15 | 7 | _ | |

0.592 | 1.86 | I | 4 1/4 | 47 3/4 | _ | _ | 7 3/4 | |

0.601 | 1.89 | I 1/2 | 4 1/2 | _ | 15 1/4 | 8 | _ | |

0.606 | 1.90 | J | 4 5/8 | 49 | 15 1/2 | _ | 9 | |

0.618 | 1.94 | J 1/2 | 5 | _ | 15 3/4 | 9 | _ | |

0.622 | 1.95 | K | 5 1/8 | 50 | _ | _ | 10 | |

0.630 | 1.98 | K 1/2 | 5 3/8 | _ | 10 | _ | ||

0.634 | 1.99 | L | 5 1/2 | 51 3/4 | 16 | _ | 11 3/4 | |

0.650 | 2.04 | M | 6 | 52 3/4 | 16 1/2 | 12 | 12 3/4 | |

0.666 | 2.09 | N | 6 1/2 | 54 | 17 | 13 | 14 | |

0.683 | 2.15 | O | 7 | 55 1/4 | 17 1/4 | 14 | 15 1/4 | |

0.699 | 2.20 | P | 7 1/2 | 56 1/2 | 17 3/4 | 15 | 16 1/2 | |

0.716 | 2.25 | Q | 8 | 57 3/4 | 18 | 16 | 17 3/4 | |

0.729 | 2.29 | Q 3/4 | 8 1/2 | _ | 18 1/2 | 17 | _ | |

0.733 | 2.30 | R | 8 5/8 | 59 | _ | _ | 19 | |

0.748 | 2.35 | R 3/4 | 9 | _ | 19 | 18 | _ | |

0.752 | 2.36 | S | 9 1/8 | 60 1/4 | _ | _ | 20 1/4 | |

0.764 | 2.40 | S 3/4 | 9 1/2 | _ | 19 1/2 | 19 | _ | |

0.768 | 2.41 | T | 9 5/8 | 61 1/2 | _ | _ | 21 1/2 | |

0.781 | 2.45 | T 1/2 | 10 | _ | 20 | 20 | _ | |

0.788 | 2.48 | U | 10 1/4 | 62 3/4 | _ | 21 | 22 3/4 | |

0.797 | 2.50 | U 1/2 | 10 1/2 | _ | 20 1/4 | 22 | _ | |

0.800 | 2.51 | V | 10 5/8 | 63 | _ | _ | 23 3/4 | |

0.814 | 2.56 | V 1/2 | 11 | _ | 20 3/4 | 23 | _ | |

0.817 | 2.57 | W | 11 1/8 | 65 | _ | _ | 25 | |

0.830 | 2.61 | W 3/4 | 11 1/2 | _ | 21 | 24 | _ | |

0.834 | 2.62 | X | 11 5/8 | 66 1/4 | _ | _ | 26 1/4 | |

0.846 | 2.66 | Y | 12 | 67 1/2 | 21 1/4 | 25 | 27 1/2 | |

0.862 | 2.71 | Z | 12 1/2 | 68 3/4 | 21 3/4 | 26 | 28 3/4 | |

0.879 | 2.76 | Z+1 | 13 | _ | 22 | 27 | _ | |

0.906 | 2.85 | _ | 14 | _ | _ | _ | _ | |

0.938 | 2.95 | _ | 15 | _ | _ | _ | _ | |

0.954 | 3.00 | _ | 15 1/2 | _ | _ | _ | _ |

For example, let us convert **3 inches to ring size**. Using the inches to ring size chart, we can switch from a circumference of **3 inches** to a **ring size of 15 1/2**.

## How to use this inches to ring size converter

Our free **inches to ring size converter** will help you determine your ring size in inches in both circumference and diameter by using the following steps:

- Measure the
**finger circumference**or**inside diameter**of your ring. Let's assume you need to convert a circumference of**2.5 inches to ring size**. - Enter the data into the relevant field.
- The
**inches to ring size converter**will return the corresponding**ring size**in different scales. We converted the circumference of**2.5 inches**to a**ring size of 10 1/2**. - In the opposite way, choose the
**ring size**and get the circumference, diameter, and size equivalents in other countries.

## Our similar tools

Here's our entire collection of **ring size conversion tools**:

## FAQ

### What ring size is equivalent to 2 1/4 inches?

**A 2 1/4-inch circumference is the equivalent of a US size 8 ring**. To find it:

- Convert
**2 1/4**inches of circumference to**2.25**. - Use the inches-to-ring size chart to convert between inches and the standard ring sizes.

### What UK ring size is equivalent to 2 inches?

**The ring with a 2-inch circumference corresponds to a size L ring in the UK**. The equivalents of this ring size in other scales are **5 1/2** (US), **51 3/4** (France and Russia), **16** (Germany), and **11 3/4** (Switzerland).