Full-Stack Architecture, FinTech Algorithms & Technical SEO
Bhadresh Kotadiya is a Senior Software Engineer, Tech Entrepreneur, and the Founder & Chief Architect of EasyToolio. With over a decade of expertise in full-stack architecture, FinTech mathematical algorithms, and web application optimization, Bhadresh designs high-precision digital calculators, financial tools, and tech guides used by millions. His research and publications focus on Web Performance, Financial Calculations, Laravel, React, and Technical Search Engine Optimization.
Your Estimated Due Date (EDD) can be calculated several ways — from your last menstrual period (LMP), from the date of conception, or from an early ultrasound. Each method has a different precision. This guide explains Naegele's Rule, LMP calculation, and what Indian doctors typically use.
A BMI of 25 is "overweight" for a Western adult, but research shows South Asians carry significantly more body fat at the same BMI — and face higher metabolic risk. The WHO recognises lower BMI thresholds for Asians. Here is what the research says and why it matters.
Most Indians accept an EMI figure from their bank without questioning it. This guide explains exactly how Indian banks calculate EMI — the reducing balance method, how RBI repo rate changes flow through to your loan, and what you can do to pay off your home loan years early.
PPF gives guaranteed 7.1% tax-free returns. SIP in equity mutual funds has historically returned 12–14%. But which one actually puts more money in your pocket after 15 years, after accounting for taxes, inflation, and risk? We run the numbers.
GST has five rates — 0%, 5%, 12%, 18%, and 28% — but knowing which rate applies to your product or service can be genuinely confusing. This guide covers the full GST rate chart, CGST vs SGST split, HSN codes for common goods, and the exact formula Indian businesses use.
Understand the math behind monthly mortgage payments. Learn how to calculate Principal and Interest (P&I) manually, evaluate the costs of PMI, estimate escrow expenses, and discover strategies to save over $200,000 in lifetime interest.
Your Debt-to-Income (DTI) ratio is the single most important number lenders look at when deciding whether to approve your loan — and at what interest rate. This guide explains the exact formula, what lenders consider a good DTI, and the fastest legal strategies to lower yours.
CAGR — Compound Annual Growth Rate — is the most honest way to measure how an investment has grown over time. It smooths out volatile year-to-year swings into a single, comparable annual rate. This guide explains the formula, shows real examples, and explains why CAGR can also be misleading.
How much money do you need to retire? The most cited rule — "save 25× your annual expenses" — is a starting point, not an answer. Your number depends on when you plan to retire, your expected lifestyle, investment returns, inflation, and whether you have pension income. This guide walks through the math.
Compound interest is the single most powerful force in personal finance. Understand the formula, see how small differences in rate and time create massive differences in outcome, and learn how to use it to your advantage.
