EthicalFusion

📚 The Blog

Guides, tips and how-tos for getting the most out of free online tools.

Guides · Jun 9, 2026
CGPA to Percentage: The Correct Formula for CBSE and Universities

Why CGPA × 9.5 works for CBSE but not every university, what recruiters actually verify, and a free instant converter.

Guides · Jun 9, 2026
How to Calculate Your EMI Before Talking to the Bank

Understand exactly what a loan will cost you — EMI, total interest and total repayment — in under a minute.

Guides · Jun 9, 2026
QR Codes for Business: 9 Smart Ways to Use Them in 2026

From menus to payments to WhatsApp ordering — nine practical, free ways small businesses can put QR codes to work, with the tools to make each one.

Guides · Jun 8, 2026
How to Create a UPI QR Code for Your Shop or Business (Free)

Make a UPI payment QR code from your UPI ID in seconds — works with GPay, PhonePe and Paytm. Print it for your counter, free and watermark-free.

Guides · Jun 8, 2026
GPA, CGPA to Percentage, and Exam Marks: Student Calculators Explained

How GPA is calculated, how to convert CGPA to percentage correctly for forms and jobs, and quick tools for marks, reading time and assignments.

Guides · Jun 8, 2026
Age Calculator: How to Find Your Exact Age in Years, Months and Days

Work out anyone's exact age — down to days and hours — and the precise gap between any two dates, the way forms, visas and competitions require it.

Guides · Jun 8, 2026
CPM, CTR and Conversion Rate Explained (With Benchmarks for 2026)

The three numbers behind every ad campaign — what they mean, what counts as good, and how they combine into the only metric that matters: cost per result.

Guides · Jun 7, 2026
CPM, CTR, ROI and Break-Even: Marketing Math Every Founder Should Know

The five calculations behind every ad campaign and pricing decision — explained with benchmarks and free calculators.

Guides · Jun 7, 2026
How to Calculate Percentage: The 3 Types Everyone Googles

Percentage of a number, percentage change, and "X is what percent of Y" — the three calculations people search for daily, explained with examples and a free tool.

Guides · Jun 7, 2026
SIP vs FD: Where Should You Put Your Money in 2026?

Fixed deposit safety or SIP growth? Real numbers over 5, 10 and 20 years, who each suits, and the hybrid approach most people should use.

Guides · Jun 6, 2026
Unit Conversion Cheat Sheet: Length, Weight, Temperature, Data and More

The conversions everyone Googles — km to miles, kg to pounds, Celsius to Fahrenheit, GB to MB — with the exact factors and instant converters.

Guides · Jun 6, 2026
GST Calculator: How to Add and Remove GST (With Examples)

Add GST to a base price, extract GST from a total, and split CGST/SGST correctly — explained with worked examples and a free calculator.