✅ **EMI Calculator** - Loan monthly payments
✅ **FD Calculator** - Fixed deposit interest
✅ **SIP Calculator** - Mutual fund returns
✅ **GST Calculator** - Tax amounts
✅ **Salary Calculator** - Net pay, deductions
✅ **Age Calculator** - Years/months/days
✅ **Percentage Calculator** - Discounts/profits
✅ **Love Match** - Fun compatibility scores
✅ **Basic Math** - Add/subtract/multiply/divide
✅ **Tip Calculator** - Restaurant bills