Actuary
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Annuity Formula
FV = PMT * [ ( ( 1 + i )N - 1 ) / i ]
Where:
- FV = future value (maturity value)
- PMT = payment per period
- i = interest rate in percent per period
- N = number of periods
Compound Interest Formula
FV = PV * ( 1 + i )N
Where:
- PV = present value
- FV = future value (maturity value)
- i = interest rate in percent per period
- N = number of periods
Simple Interest Amortized Loan Formula
PV * ( 1 + i )N = PMT * [ ( 1 + i )N - 1 ] / i
Where:
- PMT = the payment per period
- i = interest rate in percent per period
- PV = loan / mortgage amount
- N = number of periods
See also
- Actuarial Finance Calculator, Harm's own Java Applet Version of Actuarial/Financial Interest Calculator. See the Financial Interest Calculations wiki for description and How to use.
- Actuarial calculator at kbapps.
- Tools for money, Collection of calculators.