Proposal Planning

How to Measure Ring Size Secretly

Planning a surprise proposal? Learn the best tricks to secretly measure your partner's ring size without giving away the surprise.

Top Secret Measuring Tips

While They Sleep

Carefully borrow a ring they wear on their ring finger while they're asleep. Use our ring sizer to match it, then put it back before morning.

Borrow a Ring

Ask to borrow one of their rings for "safekeeping" or claim you need it for something. Bring it to a jeweler or use our online sizer.

The String Trick

While holding hands, playfully wrap string around their finger, mark it, and measure later. They'll never suspect!

Step 1: Calibrate

First, calibrate your screen with a coin or card for accurate measurements.

Screen Calibration
For accurate measurements, calibrate your screen using a physical reference object.🔒 Privacy-friendly: No camera needed
Place your card on screen horizontally

Adjust the slider until the outline matches your card exactly

85.6 × 53.98 mm
100%
Stealth Mode Ready

Step 2: Measure Secretly

Enable Stealth Mode to hide all size numbers from prying eyes!

Secret Ring Sizer
Press ESC to exit stealth mode

Sizes hidden - Perfect for proposals!

Calibrate first for accurate sizing
Size

Frequently Asked Questions