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 100,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 105,000 units (Dollar, Euro, Pound, etc.), from date: Apr 30, 0270, to date: May 28, 2035, namely for a period of 644,681 days (21,181 Months without 2 Days) if the commission fee (withdrawal) is 0%.Jan 17 22:40 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,000,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 10 units (Dollar, Euro, Pound, etc.), from date: Jan 01, 0252, to date: Jan 01, 2022, namely for a period of 646,480 days (21,240 Months) if the commission fee (withdrawal) is 0%.Jan 17 22:13 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 5 units (Dollar, Euro, Pound, etc.), from date: Mar 19, 0366, to date: Jan 19, 2018, namely for a period of 603,322 days (19,822 Months) if the commission fee (withdrawal) is 0%.Jan 17 22:12 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 9 units (Dollar, Euro, Pound, etc.), from date: Jun 11, 2020, to date: Jun 11, 2025, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal) is 0%.Jan 17 21:58 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 308 units (Dollar, Euro, Pound, etc.), from date: Feb 28, 0856, to date: Mar 28, 2025, namely for a period of 426,997 days (14,029 Months) if the commission fee (withdrawal) is 0%.Jan 17 21:57 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 15,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 16,125 units (Dollar, Euro, Pound, etc.), from date: May 13, 0958, to date: Jun 13, 2019, namely for a period of 387,553 days (12,733 Months) if the commission fee (withdrawal) is 0%.Jan 17 21:30 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 200 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 2 units (Dollar, Euro, Pound, etc.), from date: Nov 23, 0952, to date: Nov 23, 2017, namely for a period of 388,983 days (12,780 Months) if the commission fee (withdrawal) is 2%.Jan 17 21:23 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 13,700 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 08, 2019, namely for a period of 712 days (24 Months without 18 Days) if the commission fee (withdrawal) is 16%.Jan 17 21:19 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,251 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 0.02 units (Dollar, Euro, Pound, etc.), from date: Nov 20, 0692, to date: Dec 31, 2018, namely for a period of 484,352 days (15,913 Months and 11 Days) if the commission fee (withdrawal) is 0%.Jan 17 20:44 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 110,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 868 units (Dollar, Euro, Pound, etc.), from date: Mar 03, 0540, to date: Apr 03, 2025, namely for a period of 542,416 days (17,821 Months) if the commission fee (withdrawal) is 13%.Jan 17 20:27 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 120,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 900 units (Dollar, Euro, Pound, etc.), from date: Nov 06, 0798, to date: Aug 25, 2016, namely for a period of 444,793 days (14,613 Months and 19 Days) if the commission fee (withdrawal) is 0.2%.Jan 17 20:06 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 638 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Mar 31, 0688, to date: Feb 28, 2018, namely for a period of 485,741 days (15,959 Months without 3 Days) if the commission fee (withdrawal) is 0%.Jan 17 19:38 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 5 units (Dollar, Euro, Pound, etc.), from date: Oct 30, 0338, to date: Mar 30, 2017, namely for a period of 613,029 days (20,141 Months) if the commission fee (withdrawal) is 0%.Jan 17 16:43 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%.