Ring Size Calculator

Ring Size Calculator

Finger Circumference (mm): Finger Diameter (mm): Calculate

Here's an expanded table with 100 popular ring sizes based on finger circumference and diameter:

Finger Circumference (mm)	Ring Size
38-40	1
41-43	2
44-46	3
47-49	4
50-52	5
53-55	6
56-58	7
59-61	8
62-64	9
65-67	10
68-70	11
71-73	12
74-76	13
77-79	14
80-82	15
83-85	16
86-88	17
89-91	18
92-94	19
95-97	20
98-100	21
101-103	22
104-106	23
107-109	24
110-112	25
113-115	26
116-118	27
119-121	28
122-124	29
125-127	30
128-130	31
131-133	32
134-136	33
137-139	34
140-142	35
143-145	36
146-148	37
149-151	38
152-154	39
155-157	40
158-160	41
161-163	42
164-166	43
167-169	44
170-172	45
173-175	46
176-178	47
179-181	48
182-184	49
185-187	50
188-190	51
191-193	52
194-196	53
197-199	54
200-202	55
203-205	56
206-208	57
209-211	58
212-214	59
215-217	60
218-220	61
221-223	62
224-226	63
227-229	64
230-232	65
233-235	66
236-238	67
239-241	68
242-244	69
245-247	70
248-250	71
251-253	72
254-256	73
257-259	74
260-262	75
263-265	76
266-268	77
269-271	78
272-274	79
275-277	80
278-280	81
281-283	82
284-286	83
287-289	84
290-292	85
293-295	86
296-298	87
299-301	88
302-304	89
305-307	90

Finger Diameter (mm)	Ring Size
10.0-10.4	1
10.5-10.9	2
11.0-11.4	3
11.5-11.9	4
12.0-12.4	5
12.5-12.9	6
13.0-13.4	7
13.5-13.9	8
14.0-14.4	9
14.5-14.9	10
15.0-15.4	11
15.5-15.9	12
16.0-16.4	13
16.5-16.9	14
17.0-17.4	15
17.5-17.9	16
18.0-18.4	17
18.5-18.9	18
19.0-19.4	19
19.5-19.9	20
20.0-20.4	21
20.5-20.9	22
21.0-21.4	23
21.5-21.9	24
22.0-22.4	25
22.5-22.9	26
23.0-23.4	27
23.5-23.9	28
24.0-24.4	29
24.5-24.9	30
25.0-25.4	31
25.5-25.9	32
26.0-26.4	33
26.5-26.9	34
27.0-27.4	35
27.5-27.9	36
28.0-28.4	37
28.5-28.9	38
29.0-29.4	39
29.5-29.9	40
30.0-30.4	41
30.5-30.9	42
31.0-31.4	43
31.5-31.9	44
32.0-32.4	45
32.5-32.9	46
33.0-33.4	47
33.5-33.9	48
34.0-34.4	49
34.5-34.9	50
35.0-35.4	51
35.5-35.9	52
36.0-36.4	53
36.5-36.9	54
37.0-37.4	55
37.5-37.9	56
38.0-38.4	57
38.5-38.9	58
39.0-39.4	59
39.5-39.9	60
40.0-40.4	61
40.5-40.9	62
41.0-41.4	63
41.5-41.9	64
42.0-42.4	65
42.5-42.9	66
43.0-43.4	67
43.5-43.9	68
44.0-44.4	69
44.5-44.9	70
45.0-45.4	71
45.5-45.9	72
46.0-46.4	73
46.5-46.9	74
47.0-47.4	75
47.5-47.9	76
48.0-48.4	77
48.5-48.9	78
49.0-49.4	79
49.5-49.9	80
50.0-50.4	81
50.5-50.9	82
51.0-51.4	83
51.5-51.9	84

How do I calculate ring size?

To calculate ring size, you can measure either the finger circumference or diameter. For circumference, wrap a string around the base of the finger, mark the overlap point, and measure it. For diameter, measure the inside of a well-fitting ring. Use these measurements with a ring size chart or consult a jeweler for accurate sizing.

To calculate ring size, you can follow two common approaches: measuring the finger circumference or measuring the finger diameter. Here are the steps for each method:

1. Measuring Finger Circumference:
   • Wrap a string or a strip of paper around the base of the finger where the ring will sit.
   • Mark the point where the string/paper overlaps.
   • Measure the length of the string/paper using a ruler in millimeters (mm).
   • Use the measurement to determine the ring size using a ring size chart or the formula.
2. Measuring Finger Diameter:
   • Take a ring that fits comfortably on the same finger you want to measure.
   • Place the ring on a ruler and measure the inside diameter in millimeters (mm).
   • Use the measurement to determine the ring size using a ring size chart or the formula.

Ring size charts are readily available online or at jewelry stores and provide a correlation between the measured circumference/diameter and the corresponding ring size. Additionally, jewelers can also measure your ring size accurately using professional tools.

It's important to note that different countries may use different sizing systems, so it's advisable to refer to a ring size chart specific to your region or consult with a professional jeweler for the most accurate measurement.

What ring size is 2 inches?

A ring size of 2 inches is not a standard measurement used for determining ring sizes. Ring sizes are typically measured in millimeters or a numerical scale. To determine the appropriate ring size, it's recommended to convert the measurement to millimeters or consult a jeweler who can accurately measure your finger and provide the corresponding ring size.

To determine the ring size for a measurement of 2 inches, we need to convert the measurement to millimeters (mm) since ring sizes are typically measured in millimeters.

1 inch is approximately equal to 25.4 millimeters. Therefore, 2 inches would be 2 * 25.4 = 50.8 millimeters.

Based on the average ring size chart, a measurement of 50.8 millimeters corresponds to approximately ring size 5.5 or 6, depending on the specific conversion chart or sizing system used. Keep in mind that ring sizes can vary slightly depending on the region or sizing conventions. It is advisable to consult a jeweler or use a ring sizer for the most accurate measurement.

How big is a size 7 ring?

A size 7 ring typically has a diameter of approximately 17.3-17.7 mm or a circumference of around 54.4-55.7 mm. Ring sizes can vary slightly depending on the region or sizing conventions, so it's always best to consult a jeweler or use a ring sizer to ensure an accurate measurement for a size 7 ring.

How can I measure my ring size without a ring sizer?

If you don't have a ring sizer, there are a few alternative methods you can try to measure your ring size:

1. String or Paper Method:
   • Wrap a thin strip of paper or string around the base of your finger.
   • Mark the point where the paper or string overlaps.
   • Measure the length of the paper or string using a ruler in millimeters (mm).
   • Use a ring size chart or consult a jeweler to determine your ring size based on the measured length.
2. Existing Ring Comparison:
   • If you already have a ring that fits the finger you want to measure, place it on a ruler and measure the inside diameter in millimeters.
   • Use a ring size conversion chart or consult a jeweler to find your corresponding ring size based on the measured diameter.
3. Printable Ring Sizer:
   • Search online for printable ring sizer templates.
   • Print out the template and follow the instructions provided to measure your ring size accurately.
4. Visit a Jewelry Store:
   • Visit a local jewelry store and ask if they can measure your ring size.
   • Jewelers typically have professional ring sizers and can assist you in determining the correct size.

Remember, these methods provide approximate measurements and may not be as precise as using a dedicated ring sizer. For the most accurate measurement, it's recommended to consult a jeweler or use a physical ring sizer tool.

Can I measure my ring size on my phone?

Yes, it is possible to measure your ring size using your phone. There are certain mobile applications available that utilize augmented reality (AR) or virtual reality (VR) technology to measure your finger and provide an estimated ring size. These apps typically require you to place your finger on the screen or use a reference object for size calibration.

You can search for "ring size measurement" or "ring sizer" apps in your mobile app store to find suitable options. However, it's important to note that the accuracy of these apps may vary, and they may not be as precise as using a physical ring sizer or visiting a jeweler. It's advisable to use these apps as a general guide and consider getting a professional measurement for the most accurate ring size determination.

Is your ring size the same as your shoe size?

No, your ring size and shoe size are not related or interchangeable. Ring size is a measurement specific to your finger, typically measured in millimeters or using a numerical scale. Shoe size, on the other hand, is a measurement specific to your foot, typically measured in different sizing systems such as US, UK, or European sizes.

The size of your finger and foot can vary independently, so there is no direct correlation between your ring size and shoe size. It's important to measure each separately when determining the appropriate ring or shoe size for your needs.

What ring size am I if my finger is 3 inches?

If your finger measures 3 inches, it is recommended to convert that measurement to millimeters since ring sizes are typically measured in millimeters.

1 inch is approximately equal to 25.4 millimeters. Therefore, 3 inches would be 3 * 25.4 = 76.2 millimeters.

Based on the average ring size chart, a measurement of 76.2 millimeters corresponds to a larger ring size, typically ranging from size 13 to size 14. However, ring sizes can vary slightly depending on the region or sizing conventions. It is advisable to consult a jeweler or use a ring sizer for the most accurate measurement and determination of your ring size.

What size ring am I if my finger is 2.5 inches?

If your finger measures 2.5 inches, it's recommended to convert that measurement to millimeters since ring sizes are typically measured in millimeters.

1 inch is approximately equal to 25.4 millimeters. Therefore, 2.5 inches would be 2.5 * 25.4 = 63.5 millimeters.

Based on the average ring size chart, a measurement of 63.5 millimeters corresponds to a ring size of approximately 10 or 10.5, depending on the specific conversion chart or sizing system used. However, it's always best to consult a jeweler or use a ring sizer for the most accurate measurement and determination of your ring size.

How big is a size 9 ring?

A size 9 ring typically has a diameter of approximately 18.89 mm or a circumference of around 59.34 mm. It's important to note that ring sizes can vary slightly depending on the region or sizing conventions, so it's always best to consult a jeweler or use a ring sizer for the most accurate measurement.

What is the average ring size for a woman?

The average ring size for women can vary depending on factors such as region and population. In the United States, the average ring size for women is typically between size 6 and size 7. However, it's important to note that individual ring sizes can vary significantly based on factors such as genetics, body type, and personal preferences. When purchasing a ring, it is recommended to measure the specific finger intended for the ring to ensure the best fit.

What is a small ring size for a woman?

A small ring size for a woman typically falls below the average range, which is typically between size 6 and size 7 in the United States. Sizes smaller than 5 or 5.5 are generally considered small for women. However, it's important to note that ring size can vary significantly between individuals, and what may be considered small for one person might be average or even large for another. It's best to measure the specific finger intended for the ring to determine the most accurate size.

Is a size 8 ring big for a woman?

A size 8 ring is generally considered above average for a woman in terms of ring size. In the United States, the average ring size for women typically falls between size 6 and size 7. Therefore, a size 8 ring would be larger than the average. However, it's important to note that ring size can vary significantly between individuals, and personal preferences for fit may also differ. It's best to try on different ring sizes or consult a jeweler to find the most comfortable and suitable fit for an individual.

How do I find out my girlfriend's ring size without asking?

Finding out your girlfriend's ring size without asking directly can be a bit tricky. Here are a few subtle ways to gather information:

1. Borrow one of her rings and have it measured at a jeweler.
2. Enlist the help of her close friends or family members who might know her ring size.
3. Use a printable ring size chart and compare it to one of her existing rings.
4. Guess a size and have the ring resized later if needed.