WorldCalcs

Savings Calculator

Project the future value of your savings with regular monthly contributions.

Reviewed by the WorldCalcs team · Methodology · Last reviewed: June 2026

Future value

32 703.47

Total contributed

25 000.00

Interest earned

7 703.47

Works for any currency — results are in whatever currency you enter.

This is a general estimate, not financial advice. Returns are not guaranteed and rates vary. See our Disclaimer.

What is a savings calculator?

A savings calculator shows how much your money could grow when you start with a lump sum and add regular monthly deposits, with interest compounding along the way. It combines your starting balance, your ongoing contributions and compound growth to estimate a future value, and shows how much of that is your own money versus interest earned.

How it's calculated

It uses the future-value formula: FV = P x (1 + i)^N + PMT x ((1 + i)^N - 1) divided by i, where P is the starting amount, PMT is the regular deposit, i is the periodic interest rate (annual divided by 12 for monthly) and N is the number of deposits. Your total contributions are the starting amount plus all the deposits; the rest of the final balance is interest.

Example

Starting with 1,000 and adding 200 a month at 6% for 10 years grows to 34,595.27. Of that, 25,000 is money you put in (1,000 plus 200 x 120 months) and 9,595.27 is interest earned.

All calculations happen in your browser. Nothing is sent, stored, or tracked.

Results are estimates and may contain errors — for general information only, not professional advice. Always verify before relying on them. Disclaimer

How to use

Enter your initial deposit, monthly contribution, annual interest rate, and time in years. Results update instantly as you type.

Future value is your projected balance at the end. Total contributed is the money you put in, and interest earned is the rest.

Frequently asked questions

How is savings growth calculated?+

With the future-value formula that combines your starting amount, regular deposits and compound interest.

What is the difference between contributions and interest?+

Contributions are the money you deposit; interest is the extra the bank or investment adds.

How much should I save each month?+

That is personal, but the example shows even 200 a month compounds significantly over 10 years.

Does compounding frequency matter?+

Yes; more frequent compounding and a longer horizon both increase the final balance. See our Compound Interest Calculator.

What if the interest rate is 0%?+

Then the final balance is just your total contributions, with no interest added.

How is this different from compound interest alone?+

It adds ongoing monthly deposits, not just a one-off lump sum.

Are these returns guaranteed?+

No; real rates vary, so this is an estimate, not financial advice.

How can I grow savings faster?+

Save earlier, contribute more, or seek a higher rate; time has the biggest effect.

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