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Popular tools
Loved by millions of users worldwide.
BMI Calculator
Calculate your Body Mass Index instantly. Free BMI calculator with metric and imperial units.
Age Calculator
Calculate your exact age in years, months, days, hours and minutes from your date of birth.
Loan EMI Calculator
Calculate your monthly loan EMI, total interest, and amortization schedule for any loan.
Percentage Calculator
Calculate percentages, percentage change, percentage of a number — fast and accurate.
Tip Calculator
Quickly calculate tip amount and split bills among friends. Free tip calculator.
Password Generator
Generate strong, secure, random passwords. Customize length and character types.
Popular unit conversions
Quick links to our most-searched conversion pages.
From the blog
Guides on conversions, calculators, security and developer tools.
How to Calculate BMI: A Complete Guide (2026)
Learn how Body Mass Index works, formula, healthy ranges, and limitations.
10 Tips to Create Strong Passwords That Hackers Can't Crack
Practical password security guide with examples and a free generator.
Loan EMI Explained: Formula, Examples & How to Reduce It
Understand how EMI is calculated, factors that affect it, and ways to lower it.
JSON Best Practices Every Developer Should Know
Modern guidelines for working with JSON: structure, validation, performance.
Kg to Lbs Conversion: Complete Guide with Charts (2026)
Convert kilograms to pounds with formula, examples, and a printable kg-to-lbs reference chart.
Cm to Inches: Formula, Examples and Quick Reference Table
Step-by-step centimeter to inches conversion with rounded and exact values.