Enjoyed our tool? We provide this cutting-edge AI virtual try-on technology to the world's leading jewelry brands. If you're a business, learn how our solution can boost your sales.
Click ‘Size Guide’ to see the printable ring size chart & international ring sizer guide.
Enjoyed our tool? We provide this cutting-edge AI virtual try-on technology to the world's leading jewelry brands. If you're a business, learn how our solution can boost your sales.
Click ‘Size Guide’ to see the printable ring size chart & international ring sizer guide.
Find the Perfect Ring Size
Use the AI Ring Size Calculator to instantly measure your ring size from any device.
Click ‘Try On’ to measure instantly or ‘Size Guide’ to view the printable ring size chart.
Enjoyed our tool? We provide this cutting-edge AI virtual try-on technology to the world's leading jewelry brands. If you're a business, learn how our solution can boost your sales.
Click ‘Size Guide’ to see the printable ring size chart & international ring sizer guide.
How the Ring Size Calculator Works?
Click Try On
Click ‘TRY ON’ button to start to measure your ring size.
Click ‘Ring Sizer’
Tap on the Ring Sizer in the top left corner of the screen.
Measure
Align the finger or ring you want to measure with the line to know the length.
Key Features of Our Ring Size Calculator
| Feature | Traditional |
| Touch-Free Accuracy | No physical tool required. AI ensures precision with hand detection technology. |
| Global Size Conversion | Supports U.S., UK, EU, and Asia ring sizing standards. |
| Integration Ready | Available for brand integration. |
| White-Label Friendly | Perfect for e-commerce, jewelry brands, and retail stores. |
More about AI Ring Size Calculator
Explore our 3D earring try-on for a lifelike online shopping experience.
Try on a wide range of trendy shades with one click—even dual tones or future color fade simulations over time.
AI Ring Size Calculator FAQ
Can I use this tool on mobile?
Yes, it’s mobile-optimized and browser-based—no app or downloads needed.
How accurate is the ring size calculation?
Our AI is trained on thousands of hand shapes and finger dimensions, offering high accuracy.
What's the best time of day to measure my finger?
The best time of day to measure your finger is at the end of the day, during the evening.
Throughout the day, your fingers tend to swell slightly from activity and warmth. Measuring in the evening ensures you get your finger's largest size. This guarantees that a ring purchased with this measurement will be comfortable at all times and won't feel too tight, even when your finger is swollen.
Pro-Tip:
Avoid measuring in the morning: Your fingers are often smaller when you first wake up due to a cooler body temperature.
Avoid measuring when your hands are cold: Cold causes your fingers to shrink, which can lead to an inaccurate, smaller measurement.
What if I'm between two sizes?
If your measurement falls between two sizes, we strongly recommend choosing the larger size.
Opting for the slightly larger size is the safer, more comfortable choice for several reasons:
Comfort is key: A ring that's a little loose is far better than one that's too tight to wear or gets stuck on your knuckle. You'll appreciate the extra room when your fingers swell in the heat.
Easier to resize: It is typically easier and less expensive for a jeweler to make a slightly large ring smaller than it is to make a small ring larger.
Clears the knuckle: Your ring must be large enough to slide comfortably over your knuckle, which is often the widest part of your finger. The larger size ensures a smooth fit.
Special Note: If you are buying a wide-band ring (6mm or wider), you should definitely consider going up a half-size. The wider surface area makes the ring feel much snugger on your finger.
How does finger size change with temperature?
Temperature has a significant impact on your finger size due to the natural physiological response of thermal expansion and contraction.
In Hot Weather: Your body expands blood vessels to cool itself down, causing your fingers to swell and get larger. A ring will feel tighter during warm weather.
In Cold Weather: To conserve heat, your body constricts blood vessels, causing your fingers to shrink and get smaller. Your ring will feel looser and may even be at risk of falling off.
Because of this fluctuation, the best way to find your true ring size is to measure 2-3 times at different points in the day (e.g., midday and evening) to find a comfortable average. A perfectly sized ring should slide over your knuckle with some ease when your hands are warm, but not be so loose that it could slip off when they are cold.
