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 740 units (Dollar, Euro, Pound, etc.), from date: Apr 28, 0854, to date: May 28, 2035, namely for a period of 431,381 days (14,173 Months) if the commission fee (withdrawal) is 0%.Jun 27 06:02 UTC (GMT)
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 0.07 units (Dollar, Euro, Pound, etc.), from date: Sep 14, 2018, to date: Dec 14, 2019, namely for a period of 456 days (15 Months) if the commission fee (withdrawal) is 620%.Jun 27 05:20 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, 2018, to date: Dec 22, 2018, namely for a period of 153 days (5 Months) if the commission fee (withdrawal) is 350%.Jun 27 05:20 UTC (GMT)
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%.Jun 27 04:11 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 0.02 units (Dollar, Euro, Pound, etc.), from date: Mar 28, 2013, to date: Nov 29, 2018, namely for a period of 2,072 days (68 Months and 1 Day) if the commission fee (withdrawal) is 880%.Jun 27 04:02 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 0.02 units (Dollar, Euro, Pound, etc.), from date: Mar 29, 0560, to date: Nov 29, 2018, namely for a period of 532,768 days (17,504 Months) if the commission fee (withdrawal) is 880%.Jun 27 03:53 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 240 units (Dollar, Euro, Pound, etc.), from date: May 21, 0776, to date: May 21, 2022, namely for a period of 455,092 days (14,952 Months) if the commission fee (withdrawal) is 0%.Jun 27 03:50 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,533 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 1 units (Dollar, Euro, Pound, etc.), from date: Dec 08, 0400, to date: Jan 02, 2018, namely for a period of 590,622 days (19,405 Months without 6 Days) if the commission fee (withdrawal) is 0%.Jun 27 03:15 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: Apr 03, 2020, to date: Apr 03, 2025, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal) is 562%.Jun 27 02:41 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 256 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 26, 2019, namely for a period of 730 days (24 Months) if the commission fee (withdrawal) is 524%.Jun 27 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 1,200 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 3 units (Dollar, Euro, Pound, etc.), from date: Dec 10, 2019, to date: Jan 10, 2020, namely for a period of 31 days if the commission fee (withdrawal) is 0%.Jun 27 01:53 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 16,125 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 15,000 units (Dollar, Euro, Pound, etc.), from date: May 13, 1992, to date: May 13, 2019, namely for a period of 9,861 days (324 Months) if the commission fee (withdrawal) is 0%.Jun 27 01:17 UTC (GMT)
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 10 units (Dollar, Euro, Pound, etc.), from date: Dec 31, 2017, to date: Mar 31, 2018, namely for a period of 90 days (3 Months) if the commission fee (withdrawal) is 0%.Jun 27 00:02 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%.