Jewellery Guide
Ring Size Guide
Measure at home and convert between Indian, US, and UK sizing
Ring fit changes slightly with temperature, time of day, and band width. Measure when your hands are relaxed and choose a size that slides on easily but doesn't slip off.
Ring size is one of the most common reasons for exchanges — a ring that's slightly off can pinch, spin, or slip off entirely. The good news: with a ring that already fits, or a strip of paper and a ruler, you can measure accurately at home.
Method 1: Measure a Ring You Already Own
This is the most accurate method. Choose a ring that comfortably fits the intended finger.
- Place the ring on a flat surface.
- Measure the inner diameter — the straight-line distance across the inside of the band, at its widest point.
- Compare this measurement against the conversion chart below.
Method 2: Measure Your Finger Directly
- Wrap a thin strip of paper or string snugly (but not tightly) around the base of the finger you'll wear the ring on.
- Mark the point where the strip overlaps itself.
- Lay the strip flat and measure the length in millimetres — this is your finger's circumference.
- Compare this against the circumference chart below.
Measure at the end of the day, when your fingers are at their largest (temperature and activity cause fingers to swell slightly). Avoid measuring right after exercise or in cold weather.
Inside Diameter vs. Circumference
Inside diameter is the straight-line width across the inside of the ring. Circumference is the distance around the inside of the ring (or your finger). Both measure the same thing from different angles — most size charts, including ours, provide both so you can measure using whichever method is easiest for you.
International Ring Size Conversion Chart
| Indian Size | US Size | UK Size | Inner Diameter | Circumference |
|---|---|---|---|---|
| 8 | 4 | H | 15.3 mm | 48.0 mm |
| 10 | 5 | J½ | 15.9 mm | 50.0 mm |
| 12 | 6 | L½ | 16.5 mm | 52.0 mm |
| 14 | 7 | N½ | 17.2 mm | 54.0 mm |
| 16 | 8 | P½ | 17.8 mm | 56.0 mm |
| 18 | 9 | R½ | 18.4 mm | 58.0 mm |
| 20 | 10 | T½ | 19.1 mm | 60.0 mm |
Sizing systems vary by region: Indian sizes are typically whole even numbers, US sizing uses whole and half sizes, and UK sizing uses letters (with a half-size "½" suffix for finer adjustment). When shopping internationally, always convert using diameter or circumference in millimetres — it's the one measurement that stays consistent across every system.
Measurement Tips
- Measure at the end of the day when fingers are at their largest.
- Measure 2–3 times and use the most consistent result.
- For wider bands (6mm and above), consider sizing up slightly — wider bands feel snugger than thin bands at the same size.
- Measure the exact finger you'll wear the ring on — finger size varies noticeably between hands and between fingers.
- Avoid measuring when fingers are unusually cold or swollen.
Resizing
Most rings can be resized within a limited range — typically up to two sizes up or down — without compromising the setting or design. Rings with eternity bands (stones set all the way around), inlaid patterns, or certain intricate designs may have limited or no resizing options, since resizing involves cutting and rejoining the band. Always check a piece's resizing eligibility before ordering if you're unsure of your exact size.
Key Takeaways
- Measure a ring you own (inner diameter) or your finger directly (circumference) — both methods work equally well.
- Measure at the end of the day, when fingers are at their largest.
- Diameter in millimetres is the one universal measurement across Indian, US, and UK sizing systems.
- Wider bands (6mm+) fit snugger than thin bands at the same labelled size — consider sizing up.
- Most rings can be resized 1–2 sizes; eternity bands and certain intricate designs may have limited resizing options.
Frequently Asked Questions
What's the best time of day to measure my ring size?
Measure in the evening, when fingers are typically at their largest due to normal daily temperature and activity changes. Avoid measuring right after exercise, in cold weather, or first thing in the morning.
How do I convert my US or UK ring size to Indian sizing?
Use the inner diameter or circumference in millimetres as the common reference point — it stays consistent regardless of the labelling system. Our conversion chart maps Indian, US, and UK sizes against the same diameter and circumference values.
Should I size up for a wide band ring?
Yes, generally. Wider bands (6mm and above) sit more snugly against the finger than thin bands at the same labelled size, so many jewellers recommend going up half a size for wide bands.
Can any ring be resized?
Most simple band and prong-set rings can be resized within about two sizes up or down. Rings with stones set all the way around the band (eternity styles) or certain inlaid designs may have limited or no resizing options — check before ordering if you're unsure of your size.
Know your size? Explore our ring collection across solitaires, bands, and statement designs.
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