Print at 100% scale for an accurate strip
This free printable ring size chart gives you a strip marked with US ring sizes at their true physical positions, based on each size's real inside circumference in millimeters. Print it at 100% scale — never "fit to page" — cut it out, wrap it around the base of your finger, and read off the size where it meets itself.
Before trusting the strip, verify your printer didn't shrink or stretch the page. The line below is set to exactly 30mm (about 1 inch).
Once your printer's scale is confirmed, print this ring size chart page and cut out the strip below along its outer edge. The strip below shows a readable, on-screen preview — it isn't drawn to physical scale, since 21 sizes packed into 26mm of paper would be unreadable at screen resolution. The version that actually prints uses the real millimeter positions from our sizing table, so it's accurate once it's on paper.
All measurements are in millimeters and match the calibration line above once printed at 100% scale.
Need this converted to another country's sizing?
Open the converterA printable strip is only as accurate as the paper it's printed on — always confirm the calibration line above before trusting the result. If you'd rather skip printing entirely, our measuring guide covers the string and paper methods, and our existing-ring tool works instantly if you already own a ring that fits.
This strip is calibrated for a standard flat band. If you're buying a wide band (6mm or more), you'll typically want to size up slightly beyond what the strip shows. And since a printed measurement is an estimate rather than a lab-grade fitting, it's worth knowing what can and can't be resized before you buy something you can't easily adjust — especially for an engagement ring.
Ring sizes themselves aren't gendered — a US size 7 is the same physical circumference whether it's worn by a man or a woman. This printable ring sizer chart covers the full US 3 to 13 range in half-size steps, so it works as a printable women's ring sizer just as well as it works for men's sizing. Women's rings most commonly fall in the US 5-7 range and men's most commonly in US 8-12, but there's plenty of overlap in both directions — measure your actual finger rather than assuming a size based on typical ranges.
Yes, as long as your printer didn't rescale the page — that's exactly what the 30mm calibration line above checks. A correctly calibrated printed strip is one of the more reliable free home methods, but like any home measurement, it's still an estimate rather than a jeweler's gauge.
Yes — this tool is exactly that. Standard printer paper works fine for a paper ring sizer; there's no need to buy a plastic or metal sizing tool. Just confirm the calibration line measures exactly 30mm after printing before you trust the result.
Standard printer paper works fine — thicker cardstock is easier to wrap cleanly if you have it, but isn't required. What matters far more than paper type is confirming the calibration line measures exactly 30mm after printing.
The "Print Sizer" button above opens your browser's print dialog, where most browsers let you choose "Save as PDF" as the destination instead of a physical printer — that gives you a PDF copy calibrated exactly the same way as a direct print.
This almost always means the page was scaled during printing. Check the calibration line with a ruler — if it isn't exactly 30mm, open your printer settings, set scale to "Actual Size" or "100%" (not "Fit to Page" or "Shrink to Fit"), and print again.
The strip itself measures your true finger circumference regardless of band width, but the size you order may need adjusting afterward — wide bands (6mm and up) typically fit more snugly and often need sizing up slightly from what the strip shows.
Free ring size conversion and measurement tools for US, UK, Japan, and international sizing systems.
© Rings Sizer. Sizes are estimates — confirm in person for a permanent purchase.