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 6 units (Dollar, Euro, Pound, etc.), from date: Oct 03, 2017, to date: Nov 03, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Sep 16 02:29 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 18,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Feb 19, 2019, to date: Mar 19, 2022, namely for a period of 1,124 days (37 Months) if the commission fee (withdrawal or payment) is 3%.Sep 16 02:29 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,500 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 5,000 units (Dollar, Euro, Pound, etc.), from date: Feb 03, 2017, to date: Feb 03, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:27 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1,800 units (Dollar, Euro, Pound, etc.), from date: Feb 12, 2019, to date: Feb 12, 2020, namely for a period of 365 days (12 Months) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:24 UTC (GMT)
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 3.91 units (Dollar, Euro, Pound, etc.), from date: Sep 27, 0364, to date: Sep 27, 2022, namely for a period of 605,572 days (19,896 Months) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:24 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 3 units (Dollar, Euro, Pound, etc.), from date: Apr 24, 0664, to date: Apr 24, 2018, namely for a period of 494,538 days (16,248 Months) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:24 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 25,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 18.5 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 58%.Sep 16 02:20 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,500,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1,000,000 units (Dollar, Euro, Pound, etc.), from date: May 22, 0782, to date: Jun 22, 2019, namely for a period of 451,836 days (14,845 Months) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:19 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 928 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 34,138.19 units (Dollar, Euro, Pound, etc.), from date: Jul 10, 2010, to date: Nov 30, 2014, namely for a period of 1,604 days (52 Months and 20 Days) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:18 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: Feb 28, 2018, to date: Mar 28, 2025, namely for a period of 2,585 days (85 Months) if the commission fee (withdrawal or payment) is 294%.Sep 16 02:17 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 12,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 12.93 units (Dollar, Euro, Pound, etc.), from date: Jul 01, 0202, to date: Oct 10, 2017, namely for a period of 663,017 days (21,783 Months and 9 Days) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:14 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 205,900 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 232 units (Dollar, Euro, Pound, etc.), from date: Aug 23, 2016, to date: Sep 01, 2018, namely for a period of 739 days (25 Months without 22 Days) if the commission fee (withdrawal or payment) is 0.3%.Sep 16 02:04 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,000,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 8.5 units (Dollar, Euro, Pound, etc.), from date: Apr 19, 0474, to date: Nov 19, 2017, namely for a period of 563,783 days (18,523 Months) if the commission fee (withdrawal or payment) is 0%.Sep 16 02:01 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%.