Future Value Annuity Calculator

This tool calculates the future value of regular payments with compound interest. It shows how your savings grow over time.

How to Use This Tool

Follow these steps for a quick calculation.

1. Enter your payment amount in dollars.
2. Type the annual interest rate as a percentage.
3. Input the number of periods you plan to save. This can be in years or another period you choose.
4. Select the payment frequency. Options include yearly, semi-yearly, quarterly, monthly, weekly, or daily.
5. Choose if payments are made at the end or the beginning of the period.
6. Click the "Calculate Future Value" button or press Enter.

Understanding the Input Fields

Regular Payment Amount ($): This is how much you contribute each period.

Annual Interest Rate (%): This rate is divided by the number of payment periods. Enter it as a whole number. For example, type 5 for 5%.

Number of Periods: This is the count of periods you plan to contribute. For example, enter 10 for ten years.

Payment Frequency: Choose how often you make a payment. Options range from daily to yearly.

Payment Timing: Choose if the payment happens at the end or the beginning of each period. The first option is for regular payments. The second is for payments made at the start.

Interpreting the Results

The tool shows four key outputs.

• Future Value: This is the total amount your savings grow to over time.
• Total Contributions: This is the sum of all your payments.
• Total Interest Earned: This is the interest gained over the saving period.
• Effective Annual Rate: This rate shows the true annual interest after considering the compounding effect.

Limitations and Special Notes

The calculator works best with positive numbers. It also accepts zero interest. When interest is zero, the future value equals the total contributions.

If you enter invalid data, the tool lets you know with an error message. Make sure every field has the correct data type.

Common Use Cases

This calculator is helpful for many purposes.

• Planning retirement savings.
• Estimating funds for a future purchase.
• Understanding how regular contributions grow over time.

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