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 17,834 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 700 units (Dollar, Euro, Pound, etc.), from date: Jan 25, 0574, to date: Jul 25, 2016, namely for a period of 526,861 days (17,310 Months) if the commission fee (withdrawal) is 0.5%.Apr 02 12:17 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: Jun 01, 0612, to date: Oct 10, 2017, namely for a period of 513,297 days (16,864 Months and 9 Days) if the commission fee (withdrawal) is 6%.Apr 02 12:15 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,654 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 317.68 units (Dollar, Euro, Pound, etc.), from date: Jun 09, 0226, to date: Feb 20, 2009, namely for a period of 651,119 days (21,392 Months and 11 Days) if the commission fee (withdrawal) is 0%.Apr 02 11:49 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 948 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 6,300 units (Dollar, Euro, Pound, etc.), from date: Jul 26, 0314, to date: Jul 26, 2019, namely for a period of 622,739 days (20,460 Months) if the commission fee (withdrawal) is 0%.Apr 02 11:42 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,399.99 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Apr 24, 0872, to date: Oct 21, 2019, namely for a period of 419,112 days (13,770 Months without 3 Days) if the commission fee (withdrawal) is 0%.Apr 02 11:41 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 918 units (Dollar, Euro, Pound, etc.), from date: Mar 29, 2013, to date: Nov 01, 2018, namely for a period of 2,043 days (68 Months without 28 Days) if the commission fee (withdrawal) is 0%.Apr 02 10:47 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 20, 2017, to date: Oct 10, 2017, namely for a period of 82 days (3 Months without 10 Days) if the commission fee (withdrawal) is 400%.Apr 02 10:47 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, 0122, to date: Mar 30, 2017, namely for a period of 691,921 days (22,733 Months) if the commission fee (withdrawal) is 0%.Apr 02 06:51 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,200 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 15 units (Dollar, Euro, Pound, etc.), from date: Mar 02, 2022, to date: Apr 02, 2022, namely for a period of 31 days if the commission fee (withdrawal) is 15%.Apr 02 05:32 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 176 units (Dollar, Euro, Pound, etc.), from date: Feb 03, 0552, to date: Feb 03, 2022, namely for a period of 536,907 days (17,640 Months) if the commission fee (withdrawal) is 0%.Apr 02 04:54 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 320 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) is 0%.Apr 02 04:19 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 103,737.57 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 842 units (Dollar, Euro, Pound, etc.), from date: Jan 24, 2018, to date: Jul 24, 2018, namely for a period of 181 days (6 Months) if the commission fee (withdrawal) is 112%.Apr 02 03:52 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,654 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 4,465.35 units (Dollar, Euro, Pound, etc.), from date: Mar 20, 2009, to date: Mar 20, 2010, namely for a period of 365 days (12 Months) if the commission fee (withdrawal) is 0%.Apr 02 03:38 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%.