About Mizan Rahaman
Mizan Rahaman is the founder and driving force behind CalcMora — one of the web's most ambitious free calculator platforms, built with a single goal: make complex decisions simple for everyone.
Mizan brings a rare combination of technical depth and real-world industry experience to everything he builds. With 7+ years of web development expertise — spanning Shopify, HTML, CSS, JavaScript, and Node.js — he has worked as a top-rated freelancer on Upwork and a Level 2 seller on Fiverr, delivering hundreds of projects for clients across the globe. He knows what it takes to build tools that actually work, load fast, and serve real people.
Before turning full-time to the web, Mizan spent 10 years in the pharmaceutical industry, working as a Medical Representative with companies including SUN Pharma — one of the world's leading generic pharmaceutical manufacturers. That decade on the ground — speaking with doctors, pharmacists, and healthcare professionals daily — gave him a deep understanding of how information shapes decisions. He saw firsthand how the right data, presented clearly, can change outcomes.
Why CalcMora?
The idea behind CalcMora came from a simple frustration: too many important decisions — financial, health, mathematical — were harder than they needed to be. People were Googling scattered answers, trusting unreliable sources, or giving up and guessing. Mizan built CalcMora to fix that.
The mission is threefold: make life easier by putting the right calculations one click away; help people decide smarter — whether it's calculating a loan EMI, checking a BMI, or understanding a percentage change; and make it genuinely useful — sometimes practical, sometimes educational, sometimes just a little fun.
"I want anyone, anywhere, to be able to open CalcMora on their phone and get a clear, trustworthy answer — for free, with no signup, no ads in their way, and no confusion," Mizan says. "A good calculator should feel like asking a knowledgeable friend."
How CalcMora Is Built
Every tool on CalcMora is built by Mizan personally — researched, coded, and tested before going live. The platform runs on Astro, a modern static site framework built for speed, with clean semantic HTML, real-time JavaScript calculations, and mobile-first design baked in from the start.
CalcMora's goal of 3000+ tools isn't about quantity for its own sake — it's about coverage. Finance, health, math, unit conversion, everyday life, date and time, sports — every category where people reach for a calculator deserves a tool that's actually good. Accurate formulas, clear explanations, worked examples, and honest disclaimers where they matter.
Mizan's background in pharma means health tools on CalcMora are built with particular care — every BMI calculator, calorie counter, and body fat estimator includes clear educational context and appropriate medical disclaimers. His freelance background means the tools are fast, accessible, and work on any device.
Beyond the Calculator
When he's not building tools, Mizan is exploring new technologies, contributing to freelance projects, and learning whatever's next. His philosophy: stay curious, help people, build things that last.
CalcMora is the intersection of everything Mizan knows — web craft, industry experience, and a genuine desire to make useful things for real people. Every calculator published is one more decision made easier for someone, somewhere.