Free Calculators for Etsy Sellers, Gamers and Everyday Age Questions
ZingCalc is a collection of 19 free tools. Each one answers a single question: how much Etsy takes from a sale, exactly how old someone is, what your Robux are worth in dollars, or what to call your new Xbox account. No sign-up is needed, and most calculators show the formula behind the result, so you can check it yourself.
Browse all 19 toolsBrowse Tools by Category
Business Tools
Work out Etsy fees, print-on-demand profit, shipping costs and break-even points before you set a price.
8 toolsAge Calculators
Find an exact age in years, months and days, compare two birthdays, convert to Korean age, or count down to your next birthday.
4 toolsGaming Tools
Convert Robux to US dollars and create usernames for Xbox, PlayStation, Steam and Discord.
4 toolsLifestyle Tools
Light-hearted name and compatibility tools, including a love calculator, crush calculator and couple name generator. Just for fun.
3 toolsMost Used Tools
Birthday Countdown
Live countdown to your next birthday in days, hours, minutes, and seconds. Includes zodiac sign, birthstone, golden birthday, and milestone tracker.
Chronological Age Calculator
Calculate exact age in years, months, and days. Perfect for medical assessments and testing.
Korean Age Calculator
Find your age according to Korean age system with 2026 law updates.
PSN Name Generator
Generate cool, unique PlayStation IDs for PS5 and PS4. Aesthetic, tryhard, funny & edgy styles — free, no sign-up.
Xbox Gamertag Generator
Generate unique, aesthetic, funny, or tryhard Xbox gamertags instantly.
Gamertag Generator
Generate unique, funny, aesthetic, and tryhard gamertags for Xbox, PlayStation, Steam, and Discord instantly.
How ZingCalc Tools Work
The formula is on the page
Most calculators explain how the result is worked out, many with a worked example.
Built around real rules
Fees, rates and age rules come from the platforms and official sources they belong to, and are updated when those change.
Private by default
Calculations run in your browser and nothing you type into a tool is stored.