About Us
Calculator Kilo
Powered by Pen Runners LLC
Hey there!
Welcome to Calculator Kilo. We’re a tight-knit group of tech enthusiasts on a mission: making accurate, reliable calculators that anyone can use—completely free. Fed up with clunky, cluttered online tools, we decided to build something better: straightforward calculators crafted with care.
What Gets Us Excited
We’re a team of Web Developers who genuinely love clean, effective solutions. Every calculator you see on our site is custom-built. Whether you’re budgeting for your dream home, working towards fitness milestones, or just tackling tricky math problems, we’ve thoughtfully designed each tool with you in mind.
Our Commitment to You
Reliable Results: Financial calculators reviewed by industry experts, health calculators verified by medical professionals.
Transparency First: Clear, textbook equations at your fingertips. And when there’s more than one way to calculate something, we’ll show you every method clearly.
Straightforward and Simple: Just plug in your numbers and instantly get accurate results. No complicated jargon or advanced degrees required.
Forever Free: You’ll never pay a dime—our tools are always accessible and cost-free.
Meet the Team
We aren’t just another anonymous website—we’re real folks working passionately behind the scenes:
🔥 Crafting each calculator in-house, tailored just for you.
🔍 Writing clear, original guides to make every calculation simple and understandable.
💡 Combining innovative open-source tech with our own creative coding.
We’re All Ears
Spot a bug? Got an idea for a calculator you’d love to see? Reach out! We read every suggestion and respond quickly to fix issues and implement your ideas.
Together, let’s simplify the complex—one calculation at a time.
Pen Runners LLC
5826 New Territory Blvd, Unit #2210
Sugar Land, TX 77479
Phone: 1-888-3929915
Our Team
Author | Marketing & Communications | Social Media Expert | AI-Savvy Content Creator
Maduforo Eze is an author and marketing strategist who blends business development acumen with creative storytelling and a passion for emerging technologies. With more than five years’ experience leading marketing and communications functions, she is recognized for her ability to translate complex technical concepts into clear, engaging narratives and to build strong relationships with stakeholders across industries. See full profile
Machine Learning Scientist | Data Scientist | Mathematician
Huy Hoang is a mathematician and data scientist with more than two decades of experience in advanced mathematics and over six years of applied machine‑learning research, teaching and leadership. He combines a deep theoretical foundation with hands‑on expertise in healthcare analytics, graduate‑level instruction and technical publishing. See full profile
Data Scientist | Machine Learning Engineer | PhD in Machine Learning
This data scientist and machine‑learning engineer brings a rare blend of academic rigor and industry experience. After earning a Ph.D. in Electrical Engineering from the University of Illinois Chicago in 2010—where her dissertation explored geometric, kernel‑based and symbolic‑sequence approaches to signal‑processing problems—and a Bachelor’s degree in Electronic Engineering and Information Science from the University of Science and Technology of China, she embarked on a career that spans research labs, energy companies, e‑commerce platforms and tech giants. See full profile
Senior FullStack Software Engineer (Golang, ReactJS, NodeJS) @ NFQ.
Tien Dung Nguyen is a results‑driven software engineer who combines deep technical expertise with an entrepreneurial mindset. Based in Ho Chi Minh City, Vietnam, he has advanced from a junior backend role to a Senior Full‑Stack Engineer at NFQ within five years while concurrently pursuing a Bachelor of Information Technology in DevOps at RMIT University Vietnam.
Fullstack Developer | Frontend | React | Javascript | Backend | Django | Python
Ismael Vargas is a software developer from Peru with more than six years of professional experience building web applications. He combines strong frontend skills in React and JavaScript with backend expertise in Django and Python, and he enjoys working across the stack to deliver feature‑rich, data‑driven products.
Contact Us
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