Complete Ring Size Guide
Complete Ring Size Guide: Find Your Perfect Ring Size
Getting your finger sized for your new ring is a crucial step before shopping for any type of ring online. Be it engagement ring, wedding band, moissanite ring or lab grown diamond ring, getting the size right can help avoid resizing and exchange, ensuring a comfortable wearing experience.
Here is your ultimate ring sizing guide for picking the correct size, how to measure your size and ring size conversion table, all in one.
Ring Size Chart
| Circumference (mm) | US SIZE | UK SIZE | EU Size | Inner Diameter (mm) |
| 44.2 | 3 | F | 44 | 14.1 |
| 45.5 | 305 | G | 45.5 | 14.5 |
| 46.5 | 4 | H | 46.5 | 14.8 |
| 48 | 4.5 | I | 48 | 15.3 |
| 49.3 | 5 | J | 49 | 15.7 |
| 50.6 | 5.5 | K | 50.5 | 16.1 |
| 51.8 | 6 | L | 51.5 | 16.5 |
| 53.1 | 6.5 | M | 53 | 16.9 |
| 54.4 | 7 | N | 54 | 17.3 |
| 55.7 | 7.5 | O | 55.5 | 17.7 |
| 57 | 8 | P | 57 | 18.2 |
| 58.3 | 8.5 | Q | 58 | 18.5 |
| 59.5 | 9 | R | 59.5 | 18.9 |
| 61 | 9.5 | S | 61 | 19.4 |
| 62.1 | 10 | T | 62 | 19.8 |
| 63.4 | 10.5 | U | 63.5 | 20.2 |
| 64.7 | 11 | V | 64.5 | 20.6 |
| 67.2 | 12 | X | 67.5 | 21.4 |
| 69.7 | 13 | Z | 70 | 22.2 |
Tip: If you are in between sizes, we suggest ordering up one size for a more comfortable fit and wider band measurement.
How to Measure Your Ring Size at Home
Method 1 – Measure with a String or Paper Strip
Step 1:- Wrap a string or paper strip around your finger.
Step 2:- Mark where the ends meet.
Step 3:- Measure the length using a ruler in millimeters.
Step 4:- Compare your measurement with the ring size chart above.
Method 2 – Measure an Existing Ring
If you already own a ring that fits perfectly:
Step 1:- Measure the inside diameter.
Step 2:- Compare it with the chart.
Step 3:- Match the corresponding US ring size.
Method 3 – Visit a Local Jeweler
A professional jeweler may size your finger using a ring sizing tool for better accuracy.
How to Measure Ring Size Without a Ring Sizer
You don't need a special ring sizing tool.
You can measure your finger using:
- A piece of string
- Paper strip
- Flexible measuring tape
- Existing ring
- Printable ring size guide
These methods will provide close to accurate answer when executed carefully.
What Is the Average Ring Size?
Average Women's Ring Size
Most women wear between: US Size 6–7
The most popular women's ring size is: US Size 7
Average Men's Ring Size
Most men wear between: US Size 9–10
The average men's ring size is: US Size 10
Tips for Getting the Correct Ring Size
- Measure your finger in the evening.
- Avoid measuring cold fingers.
- Don't measure immediately after exercise.
- Measure your finger at least twice.
- Wide bands may require half a size larger.
- Compare with a ring you already wear.
Does Finger Size Change?
Yes.
Your finger size can change due to:
- Weather
- Pregnancy
- Weight changes
- Arthritis
- Exercise
- Water retention
- High temperatures
Common Ring Sizing Mistakes
Avoid these common mistakes when measuring:
❌ Measuring fingers when they are cold
❌ Using a loose-fitting ring as reference
❌ Measuring only once
❌ Ignoring wider ring designs
❌ Guessing without checking measurements
Ring Size for Different Ring Types
Engagement Rings
You should pick a fit that's snug but also feels comfortable because you will be wearing your engagement rings every single day.
Wedding Bands
When it comes to wedding bands they are usually a bit wider so a lot of people decide to go for half a size
Moissanite Rings
It is really important to measure your size before you order moissanite rings because custom moissanite rings can be very hard to resize later on.
Lab Grown Diamond Rings
Always make sure to confirm your ring size before you actually buy lab grown diamond rings especially if you are getting custom-made lab grown diamond jewelry.
Need Help Choosing Your Ring Size?
Not sure your ring size?
Don’t stress, we have your back. Our in-house jewelry professionals at Gemistone can help you decide on your engagement ring, wedding band, or moissanite jewelry size for that perfect, custom fit.
Just get in touch and our sizing experts will guide you before you finalize your purchase.
📧 Email: info.gemistone@gmail.com
📱 WhatsApp / Call: +91 7859992163
Frequently Asked Questions
1. How can I measure my ring size at home?
Use a string, paper strip, measuring tape, or an existing ring to find your size.
2. What is the average ring size for women?
The average women's ring size is US 7.
3. What is the average ring size for men?
The average men's ring size is US 10.
4. What if my ring size falls between two sizes?
Choose the larger size for a more comfortable fit.
5. Does ring size change over time?
Yes, your finger size could be influenced by changes in temperature, weight gain or loss, pregnancy, or swelling.
6. Can I measure my ring size without a ring sizer?
Yes, fingers may swell due to weight change, weather, pregnancy, swelling.
7. How do I calculate my ring size?
Measure your finger and match it with a ring size chart.
8. How big is a size 7 ring?
A US size 7 ring has a 17.3 mm inner diameter.
9. Can I size my ring on my phone?
Yes, but a physical measurement is more accurate.
10. What is the most accurate ring sizer?
A professional jeweler's ring sizer.
11. Is a size 8 ring big for a woman?
No, it's a common women's ring size.
12. What is the easiest way to measure ring size at home?
Use a string, paper strip, or an existing ring.
13. How can I measure ring size secretly?
Measure a ring they already wear.