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 12,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 124 units (Dollar, Euro, Pound, etc.), from date: Jul 01, 0864, to date: Oct 10, 2017, namely for a period of 421,225 days (13,839 Months and 9 Days) if the commission fee (withdrawal) is 968%.Oct 04 00:30 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 919 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 30 units (Dollar, Euro, Pound, etc.), from date: Sep 30, 0682, to date: Mar 30, 2017, namely for a period of 487,415 days (16,014 Months) if the commission fee (withdrawal) is 0%.Oct 03 23:54 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 13, 0578, to date: Jul 26, 2017, namely for a period of 525,597 days (17,268 Months and 13 Days) if the commission fee (withdrawal) is 0%.Oct 03 23:42 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 11,500 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 312 units (Dollar, Euro, Pound, etc.), from date: Jul 22, 0340, to date: Dec 22, 2018, namely for a period of 613,030 days (20,141 Months) if the commission fee (withdrawal) is 0%.Oct 03 23:31 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 102,940 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1,500 units (Dollar, Euro, Pound, etc.), from date: Aug 02, 0324, to date: Jun 11, 2017, namely for a period of 618,304 days (20,314 Months and 9 Days) if the commission fee (withdrawal) is 0.3%.Oct 03 23:21 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 102,940 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 972 units (Dollar, Euro, Pound, etc.), from date: Aug 11, 2016, to date: Jun 22, 2017, namely for a period of 315 days (10 Months and 11 Days) if the commission fee (withdrawal) is 0.3%.Oct 03 23:13 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 220,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 9 units (Dollar, Euro, Pound, etc.), from date: Feb 19, 0190, to date: Mar 19, 2048, namely for a period of 678,649 days (22,297 Months) if the commission fee (withdrawal) is 0%.Oct 03 23:10 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 328 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 7.82 units (Dollar, Euro, Pound, etc.), from date: Mar 14, 2018, to date: Apr 14, 2019, namely for a period of 396 days (13 Months) if the commission fee (withdrawal) is 0%.Oct 03 23:09 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 32,293.4 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 908 units (Dollar, Euro, Pound, etc.), from date: Apr 18, 2008, to date: May 20, 2008, namely for a period of 32 days (1 Month and 2 Days) if the commission fee (withdrawal) is 0%.Oct 03 23:09 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 9,600 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Mar 14, 2015, to date: Apr 14, 2019, namely for a period of 1,492 days (49 Months) if the commission fee (withdrawal) is 0%.Oct 03 22:52 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 3,496 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 636 units (Dollar, Euro, Pound, etc.), from date: May 15, 2018, to date: Nov 15, 2018, namely for a period of 184 days (6 Months) if the commission fee (withdrawal) is 0%.Oct 03 22:46 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 190 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 18,286 units (Dollar, Euro, Pound, etc.), from date: Sep 24, 0346, to date: Sep 27, 2017, namely for a period of 610,324 days (20,052 Months and 3 Days) if the commission fee (withdrawal) is 0%.Oct 03 22:45 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 102,940 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 972 units (Dollar, Euro, Pound, etc.), from date: Aug 11, 2016, to date: Jun 22, 2017, namely for a period of 315 days (10 Months and 11 Days) if the commission fee (withdrawal) is 0.3%.Oct 03 22:44 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%.