Find your ring size at home with simple and accurate methods. Whether you have a reference ring or just your finger, our tools and guides will help you measure your size reliably and find the perfect fit in any official standard.
Methods to measure ring size from a reference ring
Measure a ring
Measure the diameter of your current ring and input it into our calculator to find the correct size.
Print Ring Size Chart
Print a chart with ring sizes and place your ring on it to match your size.
Use your device’s screen
Place your ring on the screen and calibrate with our tool for an instant measurement.
Use a ring size stick
Order a ring size stick online to measure the size of any ring quickly and accurately.
Methods to calculate a ring size measuring the finger
Measure your finger
Wrap a string or paper strip around your finger to measure its circumference and find your size.
Print a paper ring sizer
Download and print a paper ring sizer to wrap around your finger for precise measurement.
Use a plastic ring sizer
Order a plastic ring sizer online to wrap around your finger and determine your size with precision.
Use a ring size gauge
Order a metal ring gauge online to size your finger and determine your exact size.
Ring Size Conversion
If you already know your ring size and want to convert it to any international system, check out our ring size conversion chart.
Convert my ring size
Frequently Asked Questions
measuring the ring size online
Ring Size Online is a platform created by jewelers and e-commerce professionals with one mission: to make online ring sizing accurate, easy, and aligned with international norms & official standards. We support all major sizing systems to adapt to each user’s preferences and measurement possibilities.
Want to know why we’re the best platform to measure your ring size? Visit our About Us page.
There’s no single global standard. Different countries use different systems, some with official regulations and others without. We support all major systems, including the US System, EU Standard, British Standard (UK), French System, and more.
No. All ring sizing systems are unisex. Our tools and guides include the full range of sizes for each system, covering both typical men’s and women’s sizes.
Yes. In addition to offering and recommending high-quality physical tools, we provide free alternative methods that also deliver great results. All our guides and calculators are carefully designed for precision. You can even use our on-screen ring sizing tool, where you just place a reference ring on your screen to find your size instantly.
To get a reliable result, you’ll need access to a ring that fits the person. With that, you can use any of our methods based on a reference ring to measure and convert its size—quickly and discreetly.
“We’ve had almost zero returns from incorrect ring sizes since we started using RingSizeOnline’s tools and guides in our store.”
“We’ve had almost zero returns from incorrect ring sizes since we started using RingSizeOnline’s tools and guides in our store.”