An annuity is a type of retirement plan in which the same amount is invested each
year and the interest rate remains fixed.
To see the mathematics of an annuity (and the formula), click here.
The annuity calculator allows you the option of solving for any of 4 variables.
• Click on the variable you don't know
• Input the other 3 numbers
• Click on the "CALCULATE" button
• the answer is then displayed
Scroll down for 4 annuity examples to help familiarize yourself with this calculator.
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Do you want to solve for
4 EXAMPLES
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1) You invest 2,000 per year at 9% interest for 10 years. What is the amount
after 10 years?
Click on the TOTAL button, enter the 3 amounts, click CALCULATE and the
answer is $33,120.59
2) At the end of 20 years, an annuity invested at 7.5% interest is now worth
$95,200. How much was invested per year?
Click on the ANNUAL AMOUNT button, enter the 3 amounts, click CALCULATE
and the answer is $2,045
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3) $2,000 was invested annually at a rate of 10% interest and the annuity is
now worth $1,000,000. How long did this take?
Click on the YEARS button, enter the 3 amounts, click CALCULATE
and the answer is 40.2735 years.
4) What interest rate would you need to have $500,000 after 40 years of
investing 2,000 per year?
Click on the RATE button, enter the 3 amounts, click CALCULATE
and the answer is 7.5854 per cent.
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