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 184,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 18 units (Dollar, Euro, Pound, etc.), from date: Sep 27, 2017, to date: Sep 27, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Nov 24 21:00 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 200 units (Dollar, Euro, Pound, etc.), from date: Apr 15, 2019, to date: Sep 15, 2019, namely for a period of 153 days (5 Months) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:52 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,434 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Mar 28, 0198, to date: Feb 28, 2018, namely for a period of 664,713 days (21,839 Months) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:50 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 302 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 274 units (Dollar, Euro, Pound, etc.), from date: May 11, 2005, to date: May 11, 2015, namely for a period of 3,652 days (120 Months) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:49 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 60,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 5 units (Dollar, Euro, Pound, etc.), from date: May 01, 2017, to date: Jan 30, 2021, namely for a period of 1,370 days (44 Months and 29 Days) if the commission fee (withdrawal or payment) is 366%.Nov 24 20:47 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 6 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 2 units (Dollar, Euro, Pound, etc.), from date: Jun 12, 2018, to date: Jul 12, 2028, namely for a period of 3,683 days (121 Months) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:35 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 31,969.28 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 366.64 units (Dollar, Euro, Pound, etc.), from date: Jun 20, 2008, to date: Jul 18, 2008, namely for a period of 28 days if the commission fee (withdrawal or payment) is 0%.Nov 24 20:32 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,236 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 34,138.19 units (Dollar, Euro, Pound, etc.), from date: Nov 30, 0456, to date: Jul 31, 2009, namely for a period of 567,099 days (18,632 Months and 1 Day) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:24 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,236 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 34,138.19 units (Dollar, Euro, Pound, etc.), from date: Nov 30, 0456, to date: Jul 31, 2009, namely for a period of 567,099 days (18,632 Months and 1 Day) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:24 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 275 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Feb 16, 0412, to date: Feb 16, 2018, namely for a period of 586,580 days (19,272 Months) if the commission fee (withdrawal or payment) is 297%.Nov 24 20:22 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 275 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Feb 16, 0412, to date: Feb 16, 2018, namely for a period of 586,580 days (19,272 Months) if the commission fee (withdrawal or payment) is 297%.Nov 24 20:22 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 54 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 10 units (Dollar, Euro, Pound, etc.), from date: May 31, 2017, to date: Jun 30, 2017, namely for a period of 30 days if the commission fee (withdrawal or payment) is 0%.Nov 24 20:13 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 200 units (Dollar, Euro, Pound, etc.), from date: May 15, 2019, to date: Nov 15, 2019, namely for a period of 184 days (6 Months) if the commission fee (withdrawal or payment) is 0%.Nov 24 20:01 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%.