About How to Calculate: Our Story
🎯 The Problem That Started It All
In 2019, I was helping my brother plan his first home purchase. He was overwhelmed by mortgage calculators that gave different results, and I was frustrated by financial tools that seemed designed to confuse rather than clarify. That's when I realized something: people don't just need calculations—they need trustworthy, accurate tools that help them make confident decisions.
What started as a simple mortgage calculator has grown into a comprehensive suite of 120+ calculators, each built with the same principle: accuracy first, simplicity always.
Our Mission: Empowering Decisions Through Accurate Calculations
We believe that everyone deserves access to accurate, easy-to-use calculation tools. In today's fast-paced world, quick access to reliable calculations can make the difference between informed decisions and guesswork. Our mission is to provide a comprehensive suite of calculators that cover the most common calculation needs people face in their daily lives.
What We Offer: Comprehensive Calculation Solutions
💰 Financial Calculators
From mortgage and loan calculators to investment and retirement planning tools, we help you make informed financial decisions with confidence.
Expert-reviewed by: Certified Financial Planners
🏥 Health & Fitness
Track your health metrics with BMI, BMR, calorie, and body fat calculators designed to support your wellness journey.
Expert-reviewed by: Board-certified physicians
🧮 Mathematical Tools
Solve complex mathematical problems with our scientific calculator, fraction calculator, and statistical analysis tools.
Expert-reviewed by: PhD mathematicians
🔄 Conversion Tools
Convert between different units of measurement for temperature, length, weight, and cooking measurements with precision.
Expert-reviewed by: Engineering professionals
👋 About This Project
Built by someone who understands both engineering precision and business realities.
Ahmet C. Toplutaş
Mechanical Engineer turned Operator
Boğaziçi University Mechanical Engineering graduate who transitioned into business and tech. Currently Chief of Staff at a B2B SaaS company in e-commerce analytics, working across finance, operations, and product.
My engineering background shows in how I approach problems - breaking them down into systems, building models, and making data-based decisions. When I'm not working, you'll find me training CrossFit or building side projects like this calculator platform.
"Building tools that actually help people make better decisions."
Why Choose How to Calculate?
✅ Expert-Reviewed Accuracy
Every calculator is reviewed by industry experts—physicians, mathematicians, and financial professionals—to ensure you get reliable results you can trust.
🎯 Real-World Applications
Our calculators aren't just mathematical tools—they're built for real-life scenarios with practical examples and expert insights.
🔒 Privacy-First Design
Your data stays on your device. We don't track or store your personal information—your privacy is our priority.
📚 Educational Value
Each calculator includes explanations, formulas, and expert insights to help you understand the math behind the results.
💬 What Our Users Say
"The mortgage calculator helped me understand exactly what I could afford. The expert insights made all the difference in my homebuying decision."
- Sarah M., First-time Homebuyer
"As a fitness trainer, I recommend these health calculators to all my clients. The accuracy and expert advice are unmatched."
- Mike C., Certified Personal Trainer
Our Commitment to Quality
We understand that when you're making important decisions about your finances, health, or academic work, accuracy is paramount. That's why we maintain rigorous standards for all our calculators. Each tool undergoes multiple rounds of testing and validation before being made available to users. We regularly review and update our calculators to ensure they remain accurate and relevant.
Get in Touch
We value feedback from our users and are always looking to improve our calculators. If you have suggestions for new calculators, improvements to existing ones, or just want to share your experience, we'd love to hear from you. Your input helps us create better tools for everyone.
Ready to Start Calculating?
Explore our collection of calculators and discover how easy it can be to get accurate answers to your calculation needs. Whether you're a student, professional, or just someone who needs quick calculations, we have the tools to help you succeed.
Browse All Calculators