Compound interest calculator with graph help


Settings Remark
Compounding period (N) The compounding period (N) is the number of times the interest is compounded per year. The following compounding periods can be selected:
  • daily
    360, 364, 365 or 366 times per year
  • weekly
    52 times per year
  • bi-weekly (every two weeks)
    26 times per year
  • semi-monthly (twice a month)
    24 times per year
  • monthly
    12 times per year
  • bi-monthly (every two months)
    6 times per year
  • quarterly
    4 times per year
  • semi-annually (twice a year)
    2 times per year
  • yearly
    1 time per year
The compound interest equation:
N = log(FV / P)          or          N = log((I / P) + 1)
T * log(1 + R) T * log(1 + R)
where:
FV = Future value
I = Interest amount
P = Principal initial amount
R = Nominal interest rate per year (as a decimal, not in percentage)
T = Time period in years
N = Number of compounding periods in one year


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