How to Measure Ring Size at Home Before Ordering
Measure ring size at home using a well-fitting ring's inside diameter or a careful finger-circumference measurement. Record millimetres, repeat the measurement and compare with the seller's own chart. Wide bands, unusual shapes and prominent knuckles can make a professional fitting more reliable.
Method one: measure a ring that already fits
Choose a ring worn comfortably on the same finger and hand as the new piece. Place it flat and measure the inside diameter across its centre, from inner edge to inner edge.
Do not include the metal band in that measurement. A small difference matters, so use a millimetre ruler and repeat the reading. Compare the inside diameter with the seller's chart.
Method two: measure around your finger
Use a narrow, non-stretch strip of paper or a suitable flexible measuring tape. Wrap it around the intended finger so it feels comfortably snug, mark where it meets and measure that length in millimetres.
This gives an approximate circumference. Make sure the proposed fit can pass over the knuckle. Repeat the measurement rather than relying on one attempt.
Paper and tape methods have limitations: wrapping too tightly, using a wide strip or measuring at an angle can change the result. A jeweller's ring sizer is preferable if you remain uncertain.
Avoid common sizing mistakes
Do not copy a size from a different finger. Hands and fingers can differ, and temperature can affect fit. Measure when your hands feel normal rather than unusually hot or cold.
Do not assume an Indian, US or UK size label means the same thing. Use the measurements on the specific chart. A wider band can also feel different from a very fine ring with the same nominal size.
What about adjustable rings?
An adjustable design has a usable range; it is not automatically suitable for every finger. Ask for that range and avoid repeatedly bending the piece to change its fit.
Before ordering, check whether the selected design is adjustable or fixed-size and review the relevant return terms.
Work through the measurements in millimetres
Diameter is the distance across the inside of a ring. Circumference is the distance around the inside. They describe the same circle in different ways, but they are not interchangeable numbers. For an approximately circular ring, circumference equals diameter multiplied by pi, about 3.1416.
| Measured inside diameter | Approximate inside circumference |
|---|---|
| 16.0 mm | 50.3 mm |
| 17.0 mm | 53.4 mm |
| 18.0 mm | 56.5 mm |
| 19.0 mm | 59.7 mm |
This is a geometry reference, not a Ratniva size conversion chart. Match your measured millimetres to the particular seller's chart. An India, US or UK size label should never be substituted for a measurement without checking the system used.
Two methods, with a check on each
If you have a well-fitting circular ring for the intended finger, place it flat and measure the widest internal distance through the centre. Exclude the metal walls. Repeat in another direction; an oval or bent ring is a poor reference. A ruler with only coarse markings may not provide enough precision for a confident choice.
Alternatively, wrap a narrow strip of non-stretch paper around the intended finger. Mark the overlap, open the strip and measure to the mark. Keep it comfortably snug without compressing the finger. Check that the loop could pass the knuckle, and repeat the measurement at another comfortable time. Avoid measuring immediately after strong heat, cold or strenuous activity.
The Ratniva edit
A sized Solitaire Shine ring and an adjustable Nazar ring involve different fit decisions. Use the listed size system for the first and obtain the intended adjustment range for the second. Neither should be chosen by appearance alone.
Silver Solitaire Shine Ring
A round central stone and a minimal band, made in 925 silver with a stated rhodium finish. Stone identity is not specified.
Silver Adjustable Nazar Ring
An open adjustable ring with a blue eye centre, surrounding clear stones and a polished silver finish over 925 silver.
Questions, answered
Should I measure diameter or circumference?
Either can help, but match the measurement to the correct column in the retailer's chart.
Can I use a ring from my other hand?
Only if it fits the intended finger equally well. Measuring the actual finger is more reliable.
What if I am between sizes?
Ask the retailer or a jeweller, especially for wide bands or non-standard shapes.
What if my knuckle and finger base differ noticeably?
A professional fitting is more reliable than choosing from one paper measurement. Wide bands, prominent knuckles and unusual ring shapes can change the fit. Adjustable rings also have limits: obtain the recommended range and adjustment instructions instead of assuming one ring fits every hand. Do not repeatedly bend an open band back and forth to test it.
Find your own favourite
Browse Ratniva's rings with your measurements ready, so the final choice feels as good as it looks.