Compound Interest Calculator
Calculate compound interest growth on savings or investments.
- On your device
- No signup
Estimate certificate of deposit maturity value and interest.
Private on your device
Your information stays on your device and is not uploaded.
Calculate compound interest growth on savings or investments.
Project savings growth with initial deposit and monthly contributions.
Project investment growth from a lump sum and monthly contributions.
Estimate time to reach a savings goal or monthly amount needed.
Calculate simple or compound interest on a principal over time.
Estimate monthly EMI, total interest, and amount payable for a loan.
Estimate monthly mortgage payments with optional tax, insurance, and HOA (defaults to 30 years).
Estimate monthly auto loan payments from price, down payment, rate, and term.
Enter deposit amount, annual interest rate, term, and compounding frequency to calculate CD maturity value, interest earned, and effective yield.
CD calculators clarify how APY—not nominal rate—drives maturity value when compounding daily or monthly. Short APY differences matter on large deposits held full term.
Early withdrawal penalties can erase months of interest. This tool models hold-to-maturity; breaking early needs separate penalty math.
FDIC insurance limits apply per bank and ownership category—split large deposits across institutions if needed.
Enter CD deposit, annual interest rate, term in months, and how often interest compounds. Calculate to see maturity value and total interest at the end of the term.
Example: $10,000 at 4.5% APY compounded monthly for 12 months matures to about $10,459, earning roughly $459 in interest.
Calculates certificate of deposit maturity value using compound interest. Enter deposit amount, annual rate, term in months, and compounding frequency. The tool returns maturity value, total interest earned, and an approximate effective annual rate.
Results are estimates for educational purposes and are not financial or tax advice. Actual costs, rates, and rules vary.
Your data stays on your device and is not uploaded.
FAQ
Yes. It is free to use and you do not need to sign in or create an account.
See the privacy note on this page. Many tools run on your device; some heavier file tools may use secure temporary processing when required.
Yes. Open this page on your phone or tablet, enter your inputs, and use the on-screen controls.
Page last reviewed: