What Is the Future Value Annuity Calculator?
A future value annuity calculator projects the cumulative growth of regular fixed savings contributions.
How Does the Future Value Annuity Calculator Work?
Applies the ordinary annuity time value of money formula across sequential compounding periods.
Future Value Annuity Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
FV = PMT × [((1 + r)^n - 1) ÷ r]
Compounds each sequential periodic payment forward to the final accumulation date.
How to Use the Future Value Annuity Calculator
- Enter your regular deposit amount, expected annual rate of return, and years horizon.
Step-by-Step Example Calculation
$500 Monthly at 7% over 15 Years
Input Values:
paymentPerPeriod:500
annualInterestRatePct:7
years:15
paymentsPerYear:12
Understanding Your Result
Shows total accumulated future wealth, total cash deposited, and compound interest earned.
Factors That Affect the Result
- Investment duration has exponential leverage due to geometric compounding over decades.
When Should You Use This Calculator?
- 401(k) / IRA retirement planning, college savings fund goals, and long-term wealth building.
Assumptions & Limitations
- Assumes constant uninterrupted deposits and level rate of return.
Frequently Asked Questions
Calculation Accuracy & Reference Note
Standard financial actuarial time value of money formula.