Financial Calculators
Compound interest, loans, mortgages, savings, taxes and more.
MaxTools' financial calculator collection helps you make smarter money decisions in seconds. Whether you are comparing loan offers, planning retirement savings, or working out how compound interest will grow your money over time, every calculator here is free, private and runs entirely in your browser.
All results are computed locally on your device — nothing is uploaded, no account is required, and you can use each tool as often as you like. Figures are for general guidance and planning; always confirm important decisions with your bank or a licensed financial advisor.
All financial calculators
Compound Interest Calculator
See how much your money can grow with daily, monthly, quarterly or yearly compounding — including optional regular contributions.
CalculatorsLoan Calculator
Calculate your monthly loan payment, total interest and full amortization schedule in seconds.
CalculatorsMortgage Calculator
Estimate your full monthly mortgage payment — principal, interest, property tax, insurance and PMI.
CalculatorsSavings Calculator
Project how your savings and monthly deposits will grow with interest over time.
CalculatorsPercentage Calculator
Four fast percentage modes: find X% of Y, compare values, calculate change, or add/subtract a percent.
CalculatorsDiscount Calculator
Work out the sale price instantly: discount amount, price after discount, tax and final cost.
CalculatorsTip Calculator
Split the bill fairly: tip amount, total and exactly what each person pays.
CalculatorsCredit Card Interest Calculator
See how long it takes to pay off your balance — and how much interest you will really pay.
CalculatorsInterest Calculator
Calculate simple or compound interest on any principal, rate and time period.
CalculatorsEMI Calculator
Calculate your Equated Monthly Installment with a full year-by-year repayment breakdown.
CalculatorsInvestment Calculator
Project how regular investing can grow your money with a chosen annual return.
CalculatorsROI Calculator
Measure your return on investment — total ROI, annualized CAGR and profit in one view.
CalculatorsProfit Margin Calculator
Calculate gross profit, profit margin and markup from revenue and cost.
CalculatorsHourly Rate Calculator
Convert an annual salary into hourly, daily, weekly and monthly rates — or set your freelance rate.
CalculatorsSalary Calculator
Convert an annual salary into hourly, weekly, monthly and estimated take-home pay.
CalculatorsTax Calculator
Estimate your US federal income tax, FICA and take-home pay for 2025.
CalculatorsInflation Calculator
See how inflation changes the value of money between any two years since 1913.
CalculatorsNet Worth Calculator
Add up everything you own and everything you owe to find your true net worth.
CalculatorsFIRE Calculator
Plan your path to Financial Independence & Early Retirement with the 4% rule.
CalculatorsDebt Payoff Calculator
See how extra monthly payments slash the time and interest it takes to clear your debt.
Looking for something else? Browse the other free tool collections: Date & Time Tools · Unit Converters · Developer Tools · Text Tools · File & Image Tools · Health & Fitness Calculators · Everyday Tools · Fun & Generators · Math & Statistics.