貯蓄目標計算機

共有リンク

はじめに

Savings Goal Calculator — Monthly deposit needed to hit a savings target. Enter Savings goal, Years, Rate (%) to get an instant, accurate result.

計算式

Monthly contribution needed = goal × r / ((1+r)ⁿ − 1), where r is the monthly rate and n is the number of months, solved from the future-value-of-annuity formula.

ステップごとの説明

Enter the Savings goal.
Enter the Years.
Enter the Rate (%).
Click Calculate to see your result instantly.

実例

Example: With Savings goal = 50000, Years = 5, Rate (%) = 5, the Savings Goal Calculator gives Monthly Needed: 735.2283.

よくある質問

What if the interest rate is 0%?

The calculator falls back to a simple division: goal ÷ number of months.

Does a higher rate lower the required monthly deposit?

Yes — with more interest doing the work, you need to contribute less each month to hit the same goal.

What inputs does the Savings Goal Calculator need?

You'll need to provide: Savings goal, Years, Rate (%). 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 Savings Goal Calculator?

The Savings Goal Calculator applies the formula exactly as calculated — Monthly contribution needed = goal × r / ((1+r)ⁿ − 1), where r is the monthly rate and n is the number of months, solved from the future-value-of-annuity formula. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Are these results guaranteed?

No. The Savings Goal 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 Savings Goal Calculator free to use?

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