About ZingCalc

Who runs ZingCalc

ZingCalc is built and maintained by Zain Ikram Nawaz in Pakistan. The site started in April 2026 and now has 19 free tools across four categories.

You can find Zain on LinkedIn and Instagram.

Why ZingCalc exists

I built ZingCalc because I couldn't find the tools I needed. Most tool sites list thousands of calculators, but they are generic and stop at simple sums.

ZingCalc takes a different approach. Each tool works through the full calculation, such as every fee Etsy takes from a sale or an exact age down to the day, and gives you the answer in seconds.

Right now the focus is on tools people actually ask for. The PSN Name Generator, for example, was added after users requested it.

What you'll find here

• Business Tools: Etsy fees, print-on-demand profit, shipping costs and break-even points.
• Age Calculators: Exact age, age gaps, Korean age and a birthday countdown.
• Gaming Tools: A Robux to US dollar converter and username generators for Xbox, PlayStation, Steam and Discord.
• Lifestyle Tools: A love calculator, crush calculator and couple name generator, just for fun.

How the tools are built and checked

• Formulas come from the official source wherever one exists, such as a platform's own fee or rate page, and that source is named on the tool page.
• Sources cited on tool pages include Etsy's fee and payments pages, Gumroad's pricing page, Roblox's Creator documentation, Pew Research Center, the U.S. Census Bureau and Korea.net.
• Each calculator is tested by hand against worked examples before it goes live.
• Edge cases are handled on purpose: leap years, month-end birthdays and rounding.
• Calculator pages explain the method, so you can check the answer yourself.

Keeping tools up to date

Platform fees and rates change. When they do, the affected tool is updated and its page shows the new figures.

Last updated: 18 October 2026

Privacy

The calculators run in your browser, and nothing you type into a tool is stored. Read the privacy policy for details.