Tools

Financial Calculator

Use our free online financial calculator to calculate loans, interest rates, mortgage payments, savings, and more. Get fast and accurate financial results for better planning.

  • Compound Interest Calculator

    Compound Interest Calculator – See how your money can grow over time with the power of compound interest.

  • CPI Inflation Calculator

    The inflation calculator estimates the percentage change in the Consumer Price Index (CPI) between two time periods.

  • Dollar to Rupiah

    Check today’s USD to IDR exchange rate with Western Union’s currency converter. Send USD, and your recipient will receive IDR within minutes.

  • Inflation Calculator

    Convert the US dollar’s historical value from 1913 to 2025 using CPI inflation rates and monthly averages.

  • Interest Calculator

    Quickly calculate how your savings will grow with compound interest. Enter your initial investment and optional monthly contributions to get detailed results.

  • Interest Rate Calculator

    Enter your loan details to find out your interest rate and how much interest you’ll pay over time with fixed monthly payments.

  • Loan Payment Calculator

    Quickly figure out how much to pay each month or how long it’ll take to pay off your loan—with either a fixed term or set payment.

  • Loan Payoff Calculator

    Use this free tool to calculate monthly payments or loan duration based on a fixed term or fixed payment amount.

  • Loan Repayment Calculator

    Take control of your finances—estimate your home loan repayments in seconds with CommBank’s intuitive mortgage calculator.

  • Bond Calculator

    Use this calculator to determine the value of bonds not traded on the coupon date. It calculates the clean price, dirty price, accrued interest, and days since the last coupon.

  • Finance Calculator

    Free financial calculators for mortgages, loans, investments, debt, and retirement—each tool includes expert tips and in-depth financial guidance.

  • Payment Calculator

    Use this free loan payment calculator to determine your monthly payment or the time it takes to pay off a loan based on fixed terms or fixed payments.