Loan & Compound Interest Calculator
Switch between two modes: an amortizing loan payment, or compound interest growth with recurring contributions. Enter the amount, annual rate, and term, and this tool works out the monthly payment or the future value, all locally.
Monthly payment
$1,000.00Total interest: $0.00
How to use
- Choose loan or compound interest mode.
- Enter the amount, annual rate, and term (and monthly contribution for compound interest).
- Read the monthly payment or future value.
Frequently asked questions
- How is the monthly loan payment calculated?
- It uses the standard amortization formula from the principal, monthly interest rate, and number of months, so each payment covers interest and principal.
- What does compound interest mode add?
- It projects the future value of a starting amount plus recurring monthly contributions, compounded at the rate you enter.
- Is my data sent anywhere?
- No. The calculation happens entirely in your browser.
Privacy
Amounts are calculated in your browser and are never sent to a server.
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