Calculate the Simple Interest Rate of a Loan or Deposit, So That it Yields a Certain Sum of Money as Simple Interest

Calculator: annual simple interest rate to negociate to earn a certain amount as simple interest

Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)

The latest calculated annual simple (flat) interest rates

Calculate the annual simple interest rate of a loan or deposit principal amount of 8,666 units (Dollar, Euro, Pound) to yield a simple interest of 268. Duration period: 19,021 days (625 Months). May 29 15:45 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 9,329 units (Dollar, Euro, Pound) to yield a simple interest of 126. Duration period: 9,132 days (300 Months). May 29 15:42 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 32,744 units (Dollar, Euro, Pound) to yield a simple interest of 164. Duration period: 10,043 days (330 Months). May 29 15:41 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 15,592 units (Dollar, Euro, Pound) to yield a simple interest of 164. Duration period: 1,280 days (42 Months). May 29 15:40 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 3,122 units (Dollar, Euro, Pound) to yield a simple interest of 2,153. Duration period: 11,293 days (371 Months). Transaction fee: 0.2%. May 29 15:27 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 3,122 units (Dollar, Euro, Pound) to yield a simple interest of 2,153. Duration period: 7,275 days (239 Months). Transaction fee: 1.3%. May 29 15:25 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 1,494 units (Dollar, Euro, Pound) to yield a simple interest of 959. Duration period: 7,640 days (251 Months). May 29 15:23 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 1,899 units (Dollar, Euro, Pound) to yield a simple interest of 47. Duration period: 986 days (32 Months and 11 Days). Transaction fee: 0.1%. May 29 15:16 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 35,250 units (Dollar, Euro, Pound) to yield a simple interest of 120. Duration period: 5,295 days (174 Months). May 29 15:01 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 4,413 units (Dollar, Euro, Pound) to yield a simple interest of 189. Duration period: 4,018 days (132 Months). Transaction fee: 1.5%. May 29 13:21 UTC (GMT)
» Monthly Tables: Annual Simple Interest Rates Calculated For the Loan or Deposit Principals To Yield Certain Simple Interest Amounts


How to calculate / negociate the simple flat interest rate of a principal - initial starting amount of money lent, deposited or borrowed, in order to collect or pay a certain simple flat rate interest by the duration and any additional transaction fees (withdrawal, payment in advance, etc.).

Annual simple flat rate interest formula:

  • I = S × p% × n

  • I = n years simple interest charged
  • S = initial amount (principal)
  • p% = annual simple flat interest rate (percentage of the principal, charged as interest)
  • n = number of years of the lending or borrowing the money

  • Formula of the simple flat interest rate applied on the principal - initial starting amount of money lent, deposited or borrowed, in order to earn a simple flat annual rate:

  • p% = I ÷ (S × n)

Examples of how to calculate the simple flat interest rate on the principal amount in order to earn a certain simple flat rate interest:

  • 1) What is the simple flat interest rate of the principal S = 20,000 units that has to be lent, deposited or borrowed, for a period of n = 5 years, if the simple flat rate interest collected or paid D = 3,500 units?
    Answer:
    p% = I ÷ (S × n) = 3,500 ÷ (20,000 × 5) = 3,500 ÷ 100,000 = 3.5 ÷ 100 = 3.5%
  • 2) What is the simple flat interest rate of a principal S = 5,000 units, that has to be lent, deposited or borrowed, for a period of n = 3 years, if the simple flat rate interest collected or paid D = 300 units?
    Answer:
    p% = I ÷ (S × n) = 300 ÷ (5,000 × 3) = 300 ÷ 15,000 = 3 ÷ 150 = 1 ÷ 50 = 2 ÷ 100 = 2%

Annual simple flat interest rate formula calculated for a period of n years:

  • Simple flat interest rate, p% = I ÷ (S × n)
  • Interest, I = S × p% × n
  • Principal, S = I ÷ (p% × n)
  • Number of years of the period of the deposit, lending or borrowing, n = I ÷ (S × p%)

Formula of the simple flat interest rate of the principal for an annual simple flat rate interest calculated for a period of m months:

  • Simple flat interest rate, p% = (12 × I) ÷ (S × m)
  • Interest, I = (S × p% × m) ÷ 12
  • Principal, S = (12 × I) ÷ (p% × m)
  • Number of months of the period, m = (12 × I) ÷ (S × p%)

Formula of the simple flat interest rate of a principal for an annual simple flat rate interest calculated for a period of d days:

  • Simple flat interest rate, p% = (365 × I) ÷ (S × d)
  • Interest, I = (S × p% × d) ÷ 365
  • Principal, S = (365 × I) ÷ (p% × d)
  • Number of days of the period, d = (365 × I) ÷ (S × p%)

More examples of how the simple flat interest rate of a principal for a simple flat rate interest formula works:

  • 1) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 6.67 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 6.67) ÷ (400 × 5) = (12 × 6.67) ÷ 2,000 = 80 ÷ 2,000 = 4%
  • 2) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 7.5 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 7.5) ÷ (400 × 5) = 90 ÷ 2,000 = 4.5%.