Carit is the calculator and reference toolkit built for bench jewelers, goldsmiths, silversmiths, and anyone working at the bench.

Whether you're sizing a customer's ring, calculating gold weight for a casting, mixing an alloy, or building a quote for a custom commission, Carit puts everything you need in one place. No clutter. No paywalls on the basics. No account required.

CALCULATORS

- Ring Sizer with credit card calibration. US, UK, EU, and JP sizes.
- Ring Blank Calculator for length, width, and metal weight
- Ring Sizing Calculator for sizing rings up or down
- Metal Weight Calculator for gold, silver, platinum, palladium, and more
- Wire Weight Calculator by gauge, length, and metal
- Stone Weight Calculator for diamonds, sapphires, rubies, emeralds, and more
- Pave Count Calculator for any layout
- Eternity Band Planner with stone count, spacing, and total carat weight
- Casting Weight Converter from wax to metal across common alloys
- Metal Value Calculator with live spot prices
- Alloy Mixing Calculator with precise karat recipes
- Unit Converter for carats, grams, pennyweights, troy ounces, millimeters, and inches
- Quote Builder with materials, stones, labor, and markup. Save and reuse.

REFERENCE LIBRARY

- Sheet and wire gauge charts
- Alloy recipes for gold, silver, platinum, and palladium
- Saw blade selector with material recommendations
- Solder temperature charts for hard, medium, easy, and extra easy
- Gemstone reference with hardness, density, and refractive index for over 100 stones

FREE FOREVER

These tools work without any subscription:
- Ring sizer
- Ring blank calculator
- Stone reference charts
- Unit converter
- Gemstone reference

CARIT PRO

Unlock the full workshop with Carit Pro:
- Quote Builder with saved jobs
- Live metal pricing
- All advanced calculators
- Full reference library

Try Pro free for 7 days, cancel anytime in your Google Play subscriptions.

NO ACCOUNT NEEDED

Carit works without an email, login, or signup. Your data stays on your device.

WHO IT'S FOR

- Bench jewelers and goldsmiths
- Silversmiths and metalsmiths
- Custom and bespoke makers
- Repair and restoration workshops
- Jewelry students and apprentices
- Independent designers and small studios

Built by a jeweler. For jewelers.

Questions or feedback? Email hello@getcarit.com or visit getcarit.com.