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 4,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Nov 23, 0898, to date: Oct 23, 2017, namely for a period of 408,675 days (13,427 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 12:02 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: Nov 23, 0898, to date: Oct 23, 2017, namely for a period of 408,675 days (13,427 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 12:02 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 20,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 833 units (Dollar, Euro, Pound, etc.), from date: Jul 26, 0584, to date: Jul 26, 2017, namely for a period of 523,392 days (17,196 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:55 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,000,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 8.5 units (Dollar, Euro, Pound, etc.), from date: Nov 19, 2017, to date: Apr 19, 2026, namely for a period of 3,073 days (101 Months) if the commission fee (withdrawal or payment) is 252%.Sep 24 11:50 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: Dec 12, 2017, to date: Jan 12, 2018, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Sep 24 11:40 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 14 units (Dollar, Euro, Pound, etc.), from date: Apr 24, 2018, to date: Apr 24, 2058, namely for a period of 14,610 days (480 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:34 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,236 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 34,138.19 units (Dollar, Euro, Pound, etc.), from date: Jul 31, 0694, to date: Nov 30, 2014, namely for a period of 482,242 days (15,844 Months without 1 Days) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:28 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: Sep 02, 2017, to date: Oct 02, 2017, namely for a period of 30 days if the commission fee (withdrawal or payment) is 344%.Sep 24 11:26 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 0.2 units (Dollar, Euro, Pound, etc.), from date: Oct 04, 0936, to date: Nov 04, 2018, namely for a period of 395,223 days (12,985 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:25 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 0.2 units (Dollar, Euro, Pound, etc.), from date: Oct 04, 0936, to date: Nov 04, 2018, namely for a period of 395,223 days (12,985 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:25 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 30,236 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 34,138.19 units (Dollar, Euro, Pound, etc.), from date: Jul 31, 0220, to date: Nov 30, 2014, namely for a period of 655,367 days (21,532 Months without 1 Days) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:21 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 27, 0920, to date: Sep 27, 2017, namely for a period of 400,641 days (13,163 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:17 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 27, 0920, to date: Sep 27, 2017, namely for a period of 400,641 days (13,163 Months) if the commission fee (withdrawal or payment) is 0%.Sep 24 11:17 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%.