Savings Calculator
Calculate how your savings grow over time with compound interest and regular monthly deposits.Updated 2026-03-16
How Savings Calculator Works
This calculator uses the compound interest formula with regular monthly contributions. Your initial deposit earns interest, and each month your additional savings are added. Interest compounds monthly, meaning you earn interest on your interest.
Formula: FV = P(1+r)^n + PMT × [((1+r)^n - 1) / r], where P = initial deposit, PMT = monthly payment, r = monthly interest rate, n = total months.
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Frequently Asked Questions
Is this tool free to use?
Yes, completely free. All processing happens in your browser — no data is sent to any server.
Do I need to create an account?
No account or signup required. Just open the tool and start using it immediately.
Is my data safe?
Yes. Everything runs locally in your browser. Your data never leaves your device.