Future Value of an Annuity Calculator
This calculator helps you determine the future value of a series of annuity payments, useful for financial planning and investments.
Annuity Calculator
Results
Future Value
$0.00
Data Source and Methodology
All calculations are based on standard financial formulas for annuities. Consult financial literature for more detailed information.
The Formula Explained
The future value of an annuity is calculated using the formula:
\[ FV = P \times \left( \frac{(1 + r)^n - 1}{r} \right) \]
Glossary of Terms
- Payment Amount (P): The amount of each annuity payment.
- Interest Rate (r): The interest rate per period.
- Number of Periods (n): The total number of payment periods.
- Future Value (FV): The total value of the annuity at the end of the investment period.
How It Works: A Step-by-Step Example
Consider an annuity with a payment of $100, an interest rate of 5%, and 10 periods. The future value would be calculated as follows:
Using the formula, plug in the values to find the future value.
Frequently Asked Questions (FAQ)
What is the future value of an annuity?
The future value of an annuity is the total value of a series of payments at a specified date in the future.
How do I calculate the future value of an annuity?
You can use the formula \( FV = P \times \left( \frac{(1 + r)^n - 1}{r} \right) \) to calculate it.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted LaTeX)
\[FV = P \times \left( \frac{(1 + r)^n - 1}{r} \right)\]
FV = P \times \left( \frac{(1 + r)^n - 1}{r} \right)
Formula (extracted text)
\[ FV = P \times \left( \frac{(1 + r)^n - 1}{r} \right) \]
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - FTC — Consumer advice — consumer.ftc.gov · Accessed 2026-01-19
https://consumer.ftc.gov/
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.