🔢
Percentage Calculator
"What is X% of Y?" and reverse variants
What is % of ?
More 🔢 Number & Math Tools
💰 🏠 📏 🏛️ 🎂 📅
Tip Calculator
Bill split + tip, with custom percentages
Loan/Mortgage Estimator
Monthly payments, total interest & amortization
Unit Converter
Length, weight, temperature, speed — all in one
Roman Numeral Converter
Numbers ↔ Roman numerals instantly
Age Calculator
Enter birthday → exact age in years, months, days, hours
Days Between Dates
How many days until or since any date