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 157,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1.8 units (Dollar, Euro, Pound, etc.), from date: Jan 30, 2019, to date: Jan 30, 2039, namely for a period of 7,305 days (240 Months) if the commission fee (withdrawal or payment) is 0%.Jun 25 07:53 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 08, 2019, to date: Jun 08, 2019, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Jun 25 07:51 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,727.08 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 18.25 units (Dollar, Euro, Pound, etc.), from date: Nov 20, 2017, to date: Dec 05, 2018, namely for a period of 380 days (13 Months without 15 Days) if the commission fee (withdrawal or payment) is 0%.Jun 25 07:40 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 58,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1,300 units (Dollar, Euro, Pound, etc.), from date: Jun 01, 2017, to date: Jul 01, 2018, namely for a period of 395 days (13 Months) if the commission fee (withdrawal or payment) is 0.3%.Jun 25 07:39 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 15,884.24 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 18.25 units (Dollar, Euro, Pound, etc.), from date: Nov 02, 2017, to date: Dec 05, 2018, namely for a period of 398 days (13 Months and 3 Days) if the commission fee (withdrawal or payment) is 0%.Jun 25 07:22 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 10 units (Dollar, Euro, Pound, etc.), from date: Jul 01, 2017, to date: Oct 10, 2017, namely for a period of 101 days (3 Months and 9 Days) if the commission fee (withdrawal or payment) is 0%.Jun 25 07:21 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 834 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Jan 22, 2018, to date: Apr 18, 2019, namely for a period of 451 days (15 Months without 4 Days) if the commission fee (withdrawal or payment) is 0%.Jun 25 07:20 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 08, 2019, to date: May 08, 2019, namely for a period of 30 days if the commission fee (withdrawal or payment) is 0%.Jun 25 07:18 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: Oct 23, 2017, to date: Nov 23, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Jun 25 07:17 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 6,900 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 800 units (Dollar, Euro, Pound, etc.), from date: Jul 28, 2016, to date: Aug 01, 2017, namely for a period of 369 days (13 Months without 27 Days) if the commission fee (withdrawal or payment) is 0.2%.Jun 25 07:16 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 6,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 240 units (Dollar, Euro, Pound, etc.), from date: Jan 28, 2019, to date: Feb 28, 2019, namely for a period of 31 days if the commission fee (withdrawal or payment) is 12%.Jun 25 07:07 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 5,500 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 0.02 units (Dollar, Euro, Pound, etc.), from date: Mar 01, 2008, to date: Dec 14, 2018, namely for a period of 3,940 days (129 Months and 13 Days) if the commission fee (withdrawal or payment) is 0%.Jun 25 06:57 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 82,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 5 units (Dollar, Euro, Pound, etc.), from date: Jun 08, 2018, to date: Jul 08, 2023, namely for a period of 1,856 days (61 Months) if the commission fee (withdrawal or payment) is 0%.Jun 25 06:56 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%.