Loan, Interest and Money Calculators
Fifteen calculators for loans, interest, savings and everyday money questions, built alongside the Georgia paycheck calculator. Every page shows its formula, its assumptions and a worked example, and nothing you enter leaves your browser. Tax figures come only from official sources: the 2026 IRS and Georgia DOR withholding rules for the 401(k) and raise calculators, and the Georgia Department of Revenue rate chart for sales tax.
These tools compute; they do not recommend. For decisions about borrowing, investing or taxes, talk to a qualified professional.
- Loan payment calculatorMonthly payment, total interest and a full amortization schedule
- Mortgage calculatorPrincipal and interest plus property tax, insurance and HOA, with yearly balances
- Auto loan calculatorCar payment with down payment, trade-in, tax or Georgia TAVT and fees
- Credit card payoff calculatorMonths to pay off a balance at a fixed payment, or the payment for a target date
- Extra payment calculatorInterest saved and months cut by paying extra on a loan each month
- Simple interest calculatorI = P × r × t, for any period in years, months or days
- Compound interest calculatorFuture value with monthly deposits and any compounding frequency
- Savings goal calculatorMonthly deposit needed to reach a target by a date, with interest
- 401(k) paycheck calculatorHow a pre-tax 401(k) percentage changes your Georgia take-home pay
- Salary to hourly calculatorConvert a salary to an hourly rate and back, with weekly, biweekly and monthly pay
- Pay raise calculatorNew pay from a percentage or dollar raise, per year, per paycheck and after Georgia taxes
- Percentage change calculatorPercent increase or decrease between two numbers, plus percent-of
- Tip calculatorTip, tax and total per person, with a 15% to 25% table
- Georgia sales tax calculatorSales tax by Georgia county from the DOR rate chart (effective October 1, 2026)
- Debt-to-income calculatorFront-end and back-end DTI ratios from monthly income and debt payments
- Time & Hours calculators
- Georgia paycheck calculator 2026 and take-home pay by salary or hourly wage
- Guides to Georgia and federal withholding