How to Measure Your Ring Size at Home: A Step-by-Step Guide

Method A: Using a Paper Strip or String

1. Prepare your tools Use a strip of paper or a piece of non-stretchy string around 6 inches long. Keep it about 1/4 inch wide for accuracy.
2. Wrap around your finger Wrap it around the base of the finger where the ring will be worn. Make sure it’s snug but not tight.
3. Mark the overlap Mark the point where the strip or string overlaps. This gives you the finger’s circumference.
4. Measure with a ruler Lay the strip flat and measure the length in millimeters.
5. Use a ring size chart Match your measurement to a ring size chart to find your US size.

Method B: Measure an Existing Ring

1. Choose a ring that fits Select a ring that fits the intended finger perfectly.
2. Measure the inside diameter Use a ruler or caliper to measure the ring’s inner diameter in millimeters.
3. Match to a size Refer to the ring size chart to find the corresponding US size.

Pro Tips for Accurate Ring Sizing

• Measure at the end of the day: Fingers swell slightly throughout the day. Evening is usually the most accurate time.
• Avoid cold hands: Cold temperatures can shrink fingers, leading to a smaller-than-accurate size.
• Account for your knuckle: If your knuckle is larger, make sure the ring can comfortably slide over it.
• Measure 2–3 times: Average your measurements to avoid errors.
• Left vs. right hand: The dominant hand is often slightly larger, so measure the exact finger you’ll wear the ring on.

Ring Size Conversion Chart

Final Thoughts