Ring Size Guide

Ring Size Guide: How to Measure and International Size Conversions

How to Measure Your Ring Size

Method 1: Using an Existing Ring

• Place your ring on a flat surface
• Use a ruler or calliper to measure the inside diameter in millimetres
• Measure from edge to edge across the widest part of the inner circle
• For most accurate results, measure the diameter at several points
• Use the diameter measurement to find your size in the conversion chart below

String or Paper Strip Method (circumference)

1. Get a piece of string or strip of paper about 6 inches (15 cm) long
2. Wrap it around your finger where you would wear the ring
3. Mark where the string or paper overlaps with a pen
4. Measure the length from the start to your mark with a ruler in millimetres
5. Use the measurement to find your size in the conversion chart below

Tips for Accurate Measurement

• Measure at the end of the day when your fingers are at their largest
• Don't measure when you're cold (fingers shrink) or very hot (fingers swell)
• Make sure the measuring tool is snug but not tight
• Measure 3-4 times to ensure consistency
• Consider wider rings may need 0.5 size larger than thin rings
• Account for knuckle size when measuring

Special Considerations

Width Adjustment

For rings wider than 6mm, consider going up 0.5 size:

• 6-8mm wide: +0.5 size
• 8mm+ wide: +1 size

Temperature Effects

• Cold weather can reduce finger size by up to 1 full size
• Hot weather can increase finger size by up to 1 full size
• Measure in normal room temperature for best results

Common Ring Sizes

• Women: Most common sizes range from 5-7
• Men: Most common sizes range from 8-10
• Remember these are just averages; individual sizes vary greatly

Care Tips for Proper Fit

• Ring should slide over knuckle with slight resistance
• Should twist slightly on finger with some effort
• Should not leave deep marks when removed
• Should not slide off when hands are wet or cold
• Should not feel tight when hands are warm