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

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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 198,650 units (Dollar, Euro, Pound) to yield a simple interest of 8,049. Duration period: 16,077 days (528 Months and 6 Days). Transaction fee: 0.3%. Aug 20 19:12 UTC (GMT)
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Calculate the annual simple interest rate of a loan or deposit principal amount of 105,187 units (Dollar, Euro, Pound) to yield a simple interest of 169. Duration period: 3,026 days (100 Months without 18 Days). Transaction fee: 0.5%. Aug 20 19:05 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 8,243 units (Dollar, Euro, Pound) to yield a simple interest of 109. Duration period: 16,202 days (532 Months and 9 Days). Transaction fee: 0.6%. Aug 20 19:04 UTC (GMT)
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Calculate the annual simple interest rate of a loan or deposit principal amount of 3,757 units (Dollar, Euro, Pound) to yield a simple interest of 181. Duration period: 11,719 days (385 Months). Aug 20 19:02 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 727,454 units (Dollar, Euro, Pound) to yield a simple interest of 323. Duration period: 8,035 days (264 Months). Aug 20 18:58 UTC (GMT)
Calculate the annual simple interest rate of a loan or deposit principal amount of 9,320 units (Dollar, Euro, Pound) to yield a simple interest of 318. Duration period: 12,128 days (399 Months without 17 Days). Transaction fee: 0.8%. Aug 20 18:57 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%.