1
$0/month
No Trail needed - Free for every store.
- Unlimited ring size measurements.
- All sizing methods included
- Work on Online Store 2.0 themes
RingBuilder for your jewelry store
Help shoppers find their perfect ring size in seconds - no guessing, fewer returns.
GET STARTED
Completely Free
Ring Sizer is completely free. Help shoppers find the right fit before they complete their purchase.
Available on
and
and
Need it on React or Laravel instead? Talk to our team.
Everything Shoppers Need to Size Their Ring
Simple tools that reduce sizing mistakes and returns on engagement rings and wedding bands.
Smart Sizing Calculator
Find the right ring size quickly with a smart calculator that provides accurate sizing results for confident purchases.
Virtual Ring Size Chart
Display ring size information directly on screen to help shoppers understand sizing and choose the right fit with confidence.
Three Ways to Measure
Let shoppers measure using a credit card, existing ring, or finger for a simple and flexible sizing experience.
Mobile-Friendly
Let shoppers measure their ring size directly from their phone with a fast and easy experience.
Global Size Standards
Support US, UK, EU, and global sizing standards to serve customers across different international markets.
Reduce Size-Related Returns
Help shoppers choose the right size with accurate sizing tools that reduce mistakes and unnecessary exchanges.
Works With Your Stack
Whatever your store runs on, Ring Builder integrates seamlessly with your ecommerce platform.
Shopify
Woo Commerce
React
Laravel
Next Js
Wix
PrestaShop
Big Commerce
Magento
Squarespace
Trusted by Jewelry Brands
Frequently Asked Questions
Answers to the most common questions merchants have before adding Ring Sizer to their
store.
How does the ring sizer work?
Shoppers pick one of three methods - matching a credit card on screen for calibration, measuring an existing ring, or measuring finger
width - and get an accurate size instantly.
width - and get an accurate size instantly.
Which sizing standards are supported?
Ring Sizer supports US, UK, CA, AU, EU, JP, IT and FR ring size standards, so shoppers see the size format they recognize.
Is Ring Sizer really free?
Yes - Ring Sizer is completely free to install, with no credit card required and no paid tiers.
Does it work on mobile?
Yes, Ring Sizer is built mobile-friendly, so shoppers can measure their ring size in a few simple steps right from their phone.
Can shoppers use an existing ring to find their size?
Yes - one of the three built-in sizing methods lets shoppers measure a ring they already own to find their size.
Ready to Build Something Great Together?
Have a question or need support? Our team is here to help and will get back to you within one business day.
No spam. No upselling. Just a focused discussion — we'll respond within 24 hours.
