Calculator: calculate the annual simple flat interest rate to negociate in order to earn a certain simple flat rate interest on the principal (money starting amount) by duration and additional transaction fees

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

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

Latest calculated annual simple flat interest rates

Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Dec 12, 2017, to date: Jan 12, 2018, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Jul 16 04:06 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 200,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 764 units (Dollar, Euro, Pound, etc.), from date: Feb 19, 2018, to date: Mar 19, 2048, namely for a period of 10,986 days (361 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 04:04 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 187,300 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 7,000 units (Dollar, Euro, Pound, etc.), from date: Jan 20, 2017, to date: Dec 31, 2018, namely for a period of 710 days (23 Months and 11 Days) if the commission fee (withdrawal or payment) is 0.3%.Jul 16 04:01 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 31,161.01 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 370.14 units (Dollar, Euro, Pound, etc.), from date: Mar 20, 0474, to date: Feb 20, 2009, namely for a period of 560,619 days (18,419 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:50 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,300 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 0.02 units (Dollar, Euro, Pound, etc.), from date: Nov 29, 2018, to date: Mar 29, 2040, namely for a period of 7,791 days (256 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:48 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 100,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 10 units (Dollar, Euro, Pound, etc.), from date: May 01, 2019, to date: Jun 01, 2029, namely for a period of 3,684 days (121 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:41 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 7 units (Dollar, Euro, Pound, etc.), from date: Jul 16, 2016, to date: Aug 16, 2016, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Jul 16 03:35 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 3,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 600 units (Dollar, Euro, Pound, etc.), from date: Jan 15, 2018, to date: Jul 15, 2018, namely for a period of 181 days (6 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:32 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 964 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 0 units (Dollar, Euro, Pound, etc.), from date: Jan 01, 2013, to date: Jan 01, 2014, namely for a period of 365 days (12 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:32 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 304 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 488.9 units (Dollar, Euro, Pound, etc.), from date: Aug 20, 2008, to date: Sep 19, 2008, namely for a period of 30 days if the commission fee (withdrawal or payment) is 0%.Jul 16 03:20 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 3,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1,600 units (Dollar, Euro, Pound, etc.), from date: May 19, 0800, to date: Apr 19, 2018, namely for a period of 444,835 days (14,615 Months) if the commission fee (withdrawal or payment) is 28%.Jul 16 03:17 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 50,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 4 units (Dollar, Euro, Pound, etc.), from date: Nov 15, 2017, to date: Nov 15, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:10 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 256 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 6,300 units (Dollar, Euro, Pound, etc.), from date: Jul 26, 2017, to date: Jul 26, 2019, namely for a period of 730 days (24 Months) if the commission fee (withdrawal or payment) is 0%.Jul 16 03:07 UTC (GMT)
All annual simple flat interest rates calculated by users


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%.