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Self-taught Hammond Middle School coder launches CalcHub with over 50 custom calculators

An 11-year-old student at Hammond Middle School is behind a new resource covering everything from budget calculators to random password generators.

In July, Emmanuel Adu-Wadier launched CalcHub, a free website with more than 50 unique calculators covering finance and investment, mathematics, science, health and wellness, education and everyday tools. The rising seventh grader built the site using JavaScript, HTML, CSS and AI.

Adu-Wadier told ALXnow he has an interest in science and math and wanted to make a more modern version of calculator.net. He said CalcHub uses graphs and simple explanations to get “straight to the point for the calculations.”

“I think it stands out because it’s rare for someone my age to design, code, and launch a fully working multi-page web platform on their own,” he said.

CalcHub dashboard: monthly payment comparison with Loan 0.65 vs Lease 0.00 and summary cards.
An example of a finance calculator on CalcHub (via Emmanuel Adu-Wadier)

The student personally enjoys using the random password generator to simplify the process of choosing passwords. Other examples he believes people will find useful are a budget calculator to manage finances, a calorie tracker and a college cost calculator to plan saving for higher education.

The self-taught coder said he hadn’t taken any specific computer science classes other than introduction to technology in sixth grade. CalcHub was created on his own without assistance from teachers.

“I always thought growing up that people that made websites or apps were like secret agents and that doing it takes years to master,” Adu-Wadier said. “But no, I was wrong — web development is open for anyone to learn and pretty fun!”

The 11-year-old has also started to learn the high-level programming language Python and hopes to make more projects with it. Next up, he hopes to make his own mini game site similar to neal.fun.

About the Author

  • Emily Leayman is the editor of ALXnow and contributes reporting to ARLnow and FFXnow. She was previously a field editor covering parts of Northern Virginia for Patch for more than eight years. A native of the Lehigh Valley in Pennsylvania, she lives in Northern Virginia.