積立預金計算機

共有リンク

はじめに

RD Calculator — Recurring deposit growth with compounding. Enter Monthly deposit, Rate (%), Tenure (months) to get an instant, accurate result.

計算式

Maturity ≈ monthly deposit × (((1+R)^N − 1) / (1 − (1+R)^(−1/3))), a quarterly-compounded recurring-deposit approximation where R = rate/400 and N = months/3.

ステップごとの説明

Enter the Monthly deposit.
Enter the Rate (%).
Enter the Tenure (months).
Click Calculate to see your result instantly.

実例

Example: With Monthly deposit = 2000, Rate (%) = 6.5, Tenure (months) = 24, the RD Calculator gives Maturity: 51370.1207, Total Invested: 48000.

よくある質問

Why quarterly compounding?

It's the most common compounding convention banks use for recurring deposit accounts.

What is "total invested"?

Simply the monthly deposit multiplied by the number of months — the sum of all your contributions before interest.

What inputs does the RD Calculator need?

You'll need to provide: Monthly deposit, Rate (%), Tenure (months). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the RD Calculator?

The RD Calculator applies the formula exactly as calculated — Maturity ≈ monthly deposit × (((1+R)^N − 1) / (1 − (1+R)^(−1/3))), a quarterly-compounded recurring-deposit approximation where R = rate/400 and N = months/3. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Are these results guaranteed?

No. The RD Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.

Is the RD Calculator free to use?

Yes, the RD Calculator is completely free, requires no signup, and runs instantly in your browser.