Universal Tools Directory
Explore our suite of professional calculators for finance, health, and more.
Tax Calculators
Salary Calculator
Estimate US take-home pay from hourly, monthly, or annual salary. See federal tax, FICA, and adjustable state tax deductions with 2026 assumptions.
Loan Calculators
Mortgage Calculator
Estimate monthly mortgage payments with property tax, insurance, PMI, and HOA fees. Adjust your down payment and interest rate, then view amortization.
Auto Loan Estimator
Calculate monthly car payments with vehicle price, sales tax, fees, down payment, and trade-in value. View loan interest and an amortization schedule.
Amortization Schedule
Create a monthly loan amortization schedule from your loan amount, interest rate, term, and start date. See principal, interest, and remaining balance.
Finance Calculator (TVM)
Solve time value of money problems for present value, future value, payment, interest rate, or periods. Choose beginning- or end-of-period payments.
Student Loan Calculator
Estimate student loan payments from balance, rate, and term. Add an extra monthly payment to compare payoff time, total interest, and interest savings.
Student Loan Repayment
Find a student loan payoff date from your balance, interest rate, and monthly payment budget. Estimate the repayment timeline and total interest cost.
Credit Card Payoff
Estimate how long it takes to pay off a credit card or find a payment for your target payoff date. See interest costs and a monthly repayment schedule.
Inflation Calculator
Compare purchasing power using selected historical US CPI annual averages, or project future costs with your own assumed inflation rate and time period.
Investment Strategies
Compound Interest
Estimate investment growth with an initial deposit and monthly contributions. Compare years, assumed return, total contributions, and compound interest.
401k Retirement Planner
Project 401(k) retirement savings with employee contributions, employer matching, salary growth, and assumed returns. See an inflation-adjusted balance.
Roth IRA Calculator
Estimate a future Roth IRA balance from your starting savings, annual contributions, expected return, and retirement age. Explore contribution scenarios.
Stock Profit Calculator
Calculate stock profit or loss after buying and selling commissions. Enter share prices and quantity to estimate ROI and a break-even sale price.
Savings & Budget
Emergency Fund Calc
Set an emergency savings goal using monthly expenses and your target months of coverage. See your savings shortfall and how many months you can cover.
Estate Tax Calculator
Estimate federal estate tax from assets, deductions, and lifetime exemption used. Select a supported year, including the $15 million 2026 exclusion.
Dining & Tipping
Tip Calculator
Calculate a restaurant tip and split the bill among your group. Adjust the tip percentage and number of people to see each person's share.