Compound Daily Calculator
Daily Compound Interest Calculator works out Future value and Total you put in from Starting amount, Annual interest rate and The rate above is. The default figures on this page give future value of 12,840.03; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
5 steps
- Rate per compounding period = 5% / 365 compounding daily (365 a year).
- Effective annual yield = (1 + r/n)^n - 1 = 5.1267%.
- No recurring contributions, so the balance grows from the 10000 starting amount alone.
- Future value after 5 years = 12840.03, of which 2840.03 is compound interest on 10000 paid in.
- At this yield the balance doubles every ln(2)/ln(1+i) = 13.86 years.
Year-by-year balancetable
| year | contributions | interest | balance |
|---|---|---|---|
| 1 | 0 | 512.67 | 10,512.67 |
| 2 | 0 | 538.96 | 11,051.63 |
| 3 | 0 | 566.59 | 11,618.22 |
| 4 | 0 | 595.64 | 12,213.86 |
| 5 | 0 | 626.17 | 12,840.03 |
Its 9 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
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Save it, change one figure, then compare the two
The calculation stays free. Save this scenario, adjust one assumption, save that too, and put them side by side to see exactly what the change costs you. A free account keeps 5 scenarios and 2 comparisons; Personal makes both unlimited and adds exports and private links. Nothing is saved unless you press Save.
What the Daily Compound Interest Calculator calculates
Projects the future value of a lump sum plus recurring contributions under any compounding frequency, and splits the result into principal, contributions and compound interest.
How to use this Daily Compound Interest Calculator
Enter Starting amount, Annual interest rate, The rate above is and Time invested. Future value updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Future value, Total you put in and Of which contributions.
The method follows Compound interest formula A = P(1 + r/n)^(nt), and the future value of an annuity FV = PMT[((1+i)^N - 1)/i], US Securities and Exchange Commission (Investor.gov) - Compound Interest Calculator, 12 CFR Part 1030 (Regulation DD), Appendix A - Annual Percentage Yield Calculation and Pag-IBIG Fund - Modified Pag-IBIG II (MP2) Savings Program.
What you can compare
Change one input at a time to see how it affects Future value, Total you put in and Of which contributions. The inputs you can vary are Starting amount, Annual interest rate, The rate above is, Time invested, Regular contribution and Contribution frequency.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
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Frequently asked questions
How much is $10,000 compound interest over 10 years?
On the figures this page opens with — starting amount 10,000, annual interest rate 5% and time invested 10 years — the future value is 12,840.03. No single number fits everyone: change any figure above and the answer updates as you type, with each step of the arithmetic beside it.
How much will 100k compound in 20 years?
It needs Starting amount, Annual interest rate, The rate above is, Time invested, Regular contribution and Contribution frequency. Nothing else is required, and the figures stay in your browser.
What is the easiest way to calculate compounding interest?
Projects the future value of a lump sum plus recurring contributions under any compounding frequency, and splits the result into principal, contributions and compound interest. Open “How this is worked out” beside the result to see each step for your own figures.
How much is $1000 worth at the end of 2 years if the interest rate of 6% is compound?
The result gives Future value, Total you put in, Of which contributions, Compound interest earned, Effective annual yield (APY) and Equivalent nominal annual rate, each labelled with its unit so the figure can be read on its own.
What information do I need for the Daily Compound Interest Calculator?
You need Starting amount, Annual interest rate, The rate above is, Time invested, Regular contribution, Contribution frequency, Contributions are made and Annual increase in the contribution. The page opens with default figures that give future value of 12,840.03, so you can see the scale before entering your own.
What does this Daily Compound Interest Calculator show?
It shows Future value, Total you put in, Of which contributions, Compound interest earned, Effective annual yield (APY), Equivalent nominal annual rate, Multiple of what you put in and Balance after tax on interest, with the working and any warnings for your entries.