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size guide

Free Ring Sizer + Ring Size Chart: How To Measure Ring Size

Finding your ideal ring size at home has been simplified with our complimentary ring sizer, downloadable ring size chart, and detailed instructions to ensure the perfect fit.
ring size

Ring Size

We'll mail you a free ring sizer that's unisex and reusable so you can easily find the exact size that's most comfortable for you.

All you have to do is wrap our sizer around the finger you'd like to measure and adjust it to the size that feels right. The perfect size will be snug enough not to slip off but loose enough to slide over the knuckle without too much resistance.

Ring Size Chart

All of our rings are crafted in standard US sizes. View the chart below to see how US sizes map to finger circumference and convert to international sizes. Engagement rings, wedding bands, and fashion rings all follow the same size format.
Inside CircumferenceUS, Canada,
Mexico
UK, Australia, Ireland,
New Zealand, South Africa
FranceGermany, Russia,
Ukraine, Asia
India, China, Japan,
South America, Turkey, Israel
Italy, Spain,
Netherlands, Switzerland
INMM
1.7444.23F441444
1.7744.83.25F 1/244.62514.25---4.625
1.7945.53.5G45.2514.555.25
1.8246.13.75G 1/245.87514.7565.875
1.8446.84H46.51576.5
1.8747.44.25H 1/247.12515.25---7.125
1.89484.5I47.7515.587.75
1.9248.74.75J48.375------8.375
1.9449.35J 1/24915.7599
1.97505.25K49.62516---9.625
1.9950.65.5K 1/250.2516.251010.25
2.0251.25.75L50.875---1110.875
2.0451.96L 1/251.516.51211.5
2.0752.56.25M52.12516.75---12.125
2.0953.16.5M 1/252.75171312.75
2.1253.86.75N53.375------13.375
2.1454.47N 1/25417.251414
2.1755.17.25O54.62517.5---14.625
2.1955.77.5O 1/255.2517.751515.25
2.2256.37.75P55.875------15.875
2.24578P 1/256.5181616.5
2.2757.68.25Q57.12518.25---7.125
2.2958.38.5Q 1/257.7518.51717.75
2.3258.98.75R58.37518.75---18.375
2.3459.59R 1/259191819
2.3760.29.25S59.62519.25---19.625
2.3960.89.5S 1/260.2519.51920.25
2.4261.49.75T60.87519.75---20.875
2.4462.110T 1/261.5202021.25
2.4762.710.25U62.12520.252122.125
2.4963.410.5U 1/262.7520.52222.75
2.526410.75V63.375------23.375
2.5464.611V 1/26420.752324
2.5765.311.25W64.625------24.625
2.5965.911.5W 1/265.25212425.25
2.6266.611.75X65.875------25.875
2.6567.212X 1/266.521.252526.5
2.6868.112.25Y67.12521.5---27.125
2.7168.512.5Z67.7521.752627.75
2.7269.112.75Z 1/268.375------28.375
2.7569.713---69222729

Method Three: Measure an Existing Ring with Our Chart

Steps:

  • 1. Print the Printable Ring Sizer & Conversion Chart. Set page scaling to "100" in your print settings and use 8.5 x 11-inch standard paper.
  • 2. Choose a ring that correctly fits the intended finger.
  • 3. Lay the ring over each size circle within the chart until you can closely match the inside edge to one of the circles on the guide. If the ring falls between two sizes, contact us to order the quarter size between them.
method image
ring size tips

Ring Size Tips

  • Our dominant hands are generally slightly larger – measure the hand you plan to wear the ring on.
  • Consider the design of your ring. Rings with wider bands will fit tighter. Plan to size up by at least a half size for chunky bands (>4mm) and size down accordingly for very thin designs (<1.3mm). Note that ring sizes are generally measured in millimeters (mm) and are not sized by inch.
  • Ensure your body temperature is normal – fingers tend to shrink when cold and expand when hot.
  • Fingers change size throughout the day based on the water we drink and the food we eat – the best time to measure is towards the middle or end of the day.
  • If your knuckle is pronounced, you may want to measure both the knuckle and the base of the finger. Then, choose a size in between those measurements as rings need to fit over the knuckle but not be too loose or tight to wear comfortably.a

Ring Size FAQs

Does Sonani Jewels offer half-ring sizes ?

Yes! You can always order half-size rings to ensure you find the perfect fit. You can also request a design in a quarter size by contacting us via phone or email.