Daily Savings Calculator (what saving a little every day grows into)

How it works

The daily amount is turned into a monthly deposit: daily × 365 ÷ 12. Each deposit is added at the end of the month and grows at the monthly rate i = (1 + r)^(1/12) − 1 that compounds to the annual return r. Balance after n months = deposit × ((1 + i)ⁿ − 1) ÷ i (just deposit × n when r = 0). Growth from returns is the balance minus what you set aside. The return is assumed constant; real investments rise and fall, and savings accounts may pay less.

⚠ Estimates for information only — not financial advice.

FAQ

Is 5% a realistic return?

It is only an example. Savings accounts pay less, and long-run stock market returns have been higher but very uneven. Past returns do not guarantee future returns — try 0% to see the plain savings.

Why does the 30-year figure grow so much faster?

Compound growth: returns are earned on earlier returns, so most of the gain arrives in the later years. Starting earlier matters more than the daily amount.

Checked 11 Nov 2026. Future value of an ordinary annuity with monthly deposits and the equivalent monthly rate of an annual effective return (standard time-value-of-money formulas, e.g. CFA Institute, Quantitative Investment Analysis, ch. 1).