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Annuity Calculator: Present & Future Value Online

Calculate present value and future value for ordinary annuities and annuities due.

Quick Answer:Enter periodic payment amount, interest rate, and total periods to view future accumulated value, present value, and total earned compound interest.

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How to Use the Annuity Calculator: Present & Future Value Online

1Enter periodic payment amount ($).
2Input annual interest rate percentage (%) and payment frequency.
3Specify investment duration or total number of periods.
4Select payment timing (ordinary annuity or annuity due) and view results.

Formula & How It Works

Annuity Future Value Formula

FV = PMT * (((1 + r)^n - 1) / r)

Ordinary: FV = PMT * [((1 + r)^n - 1) / r]. Annuity Due: FV * (1 + r).

Worked Examples

Retirement Monthly IRA

Input: $500/mo, 7% annual interest, 30 years

Explanation: $180,000 contributed grows to over $609,000 via compound interest.

Result: Future Value: $609,985

Five-Year Car Savings

Input: $300/mo, 5% annual interest, 5 years

Explanation: $18,000 in payments + $2,402 in earned interest.

Result: Future Value: $20,402

Present Value of Pension

Input: $1,000/mo for 20 years at 6% discount

Explanation: Lump-sum cash equivalent today.

Result: Present Value: $139,581

Frequently Asked Questions

What is an ordinary annuity?▼

An ordinary annuity consists of equal periodic payments made at the end of each consecutive period.

What is an annuity due?▼

An annuity due makes payments at the beginning of each period, earning one additional period of compound interest.

How does compound interest affect annuities?▼

Reinvested interest compounds exponentially over time, frequently exceeding the total cash principal contributed.

What is the present value of an annuity?▼

Present value is the lump-sum cash amount today that equals the value of all future annuity payments combined.

What formula calculates future value of an annuity?▼

FV = PMT * [((1 + r)^n - 1) / r], where r is periodic interest rate and n is number of periods.

Is this calculator private?▼

Yes, all financial figures are calculated locally in your browser memory.

Quick Reference & Conversion Table

Monthly Deposit	10 Years (7%)	20 Years (7%)	30 Years (7%)
$100 / mo	$17,308	$52,093	$121,997
$250 / mo	$43,271	$130,232	$304,993
$500 / mo	$86,542	$260,463	$609,985
$1,000 / mo	$173,085	$520,927	$1,219,971

⚠️ Common Pitfalls to Avoid

•Confusing ordinary annuity (payments at end of month) with annuity due (payments at beginning of month).
•Forgetting to divide annual interest rate by 12 for monthly compounding.