⚠ Important: For 100% Ring Size Accuracy, visit your local jeweler for an in-person measurement. All tools on this site are estimates only.
Free Printable Tool

Printable Ring Sizer

Print this page at 100% scale and use our calibrated circles to find your ring size from an existing ring.

SizeRings.com › Printable Ring Sizer
⚠ Before printing: Set your printer to 100% actual size. Do NOT select "Fit to Page," "Shrink to Fit," or any scaling option. After printing, verify accuracy by measuring the scale bar below — it must equal exactly 10mm on your printout.

How to Use the Printable Sizer

  1. 1
    Print at 100% actual size

    In your print dialog, set scale to 100% or "Actual Size." Disable all scaling options.

  2. 2
    Verify the scale bar

    Once printed, measure the gold bar in the Scale Check section below. It must be exactly 10mm. If it isn't, your printer settings were not at 100%.

  3. 3
    Match your ring to a circle

    Place a ring that fits the correct finger face-down over the circles. The circle where the inner edge of your ring aligns is your diameter size.

  4. 4
    Find your size

    Read the US size and mm diameter from the matching circle. Use our ring size chart to convert to other systems.

Scale Verification Bar

This bar must measure exactly 10mm when printed at 100% scale:

← This bar should be exactly 10mm when printed correctly →

Ring Size Circles

Place an existing ring over these circles. The circle that matches your ring's inside edge indicates your size.

US 5 · 15.7mm
US 6 · 16.5mm
US 7 · 17.3mm
US 8 · 18.2mm
US 9 · 18.9mm
US 10 · 19.8mm
US 11 · 20.7mm
US 12 · 21.5mm

Alternative Method: Finger Strip

You can also cut out a strip from this page and use it like the paper method:

  1. 1
    Cut a strip along the markings below

    After verifying scale accuracy, cut a 10mm-wide strip from the bottom of the printout.

  2. 2
    Wrap around your finger

    Wrap the strip around the base of your ring finger, ensuring it passes over the knuckle.

  3. 3
    Mark and measure

    Mark where it overlaps. The length in mm is your circumference. Use the chart to find your size.

Disclaimer: Printable sizers are approximate reference tools. Accuracy depends entirely on your printer's calibration, paper type, and print settings — all of which are outside our control. We recommend using this tool as a starting estimate only, and always confirming your ring size with a professional jeweller before any significant purchase.

🧮 Digital Calculator

No printer? Use our digital calculator to convert your mm measurement instantly.

Open Calculator

Measuring Guides

Explore More

Related Pages

Home
Ring Size Guide
Charts
Ring Size Chart
Tool
Ring Size Calculator
Guide
How to Measure at Home
Guide
How to Measure Your Ring Size
Guide
How to Measure for Ring Size
Guide
Ring Sizes How to Measure
Men's
Men's Ring Size Guide
Women's
Women's Ring Size Guide
Rings
Engagement Ring Size Guide
Rings
Wedding Ring Size Guide
UK
UK Ring Size Chart
US
US Ring Size Chart
EU
EU Ring Size Chart
Japan
Japanese Ring Size Chart
AUS
Australian Ring Size Chart
Reference
Ring Dimensions Guide
Stats
Average Ring Size
Reference
Ring Sizes Explained
Convert
Ring Size Conversion