How to measure · 3 methods
How to measure ring size at home — accurately.
There are three reliable ways to measure ring size at home: place an existing ring on a calibrated screen, wrap a paper strip around your finger, or use a free virtual ring sizer. We'll show you all three — and which is most accurate for which situation.
The 3 methods, ranked by accuracy
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1 — Use a ring you already own (most accurate) If you have a ring that fits the finger you're sizing, this beats every other method. Place it on a calibrated screen, line up the inner edge, done.
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2 — Paper strip + calibrated ruler (best when you don't have a ring) Wrap a thin strip of paper around your finger, mark where it meets, then measure the mark on our calibrated on-screen ruler. About ±¼ size accurate.
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3 — String + ruler (good in a pinch) Same idea as paper strip, but string stretches — use thin paper if you can.
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Avoid: printable charts and finger-painting on paper Printers silently re-scale. A drawn circle has no reference. These produce wrong answers more often than right ones.
Try it now
The how to measure ring size — 30 seconds to your size.
Calibrate once with a credit card. Then place a ring you own on the screen, or measure your finger with a paper strip. Free, no sign-up.
Tool
The main ring sizer
The full guided flow — choose method, calibrate, measure, convert.
ReferenceInternational ring size chart
US, UK, EU, JP, IN, CN — every standard, side-by-side.
ToolVirtual ring sizer
Screen-calibrated alternative to a physical ring sizer kit.
ToolRing size calculator
Convert between US, UK, EU, JP — or from raw millimetres.
GuideHow to measure ring size
Three reliable methods, ranked by accuracy.
ArticlesAll ring sizing resources
Guides, tips and tutorials for getting the right fit.