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 15 units, from date: Feb 3, 2017, to date: Jan 3, 2022, namely for a period of 1,795 days (59 Months), if the commission fee (withdrawal) is 794%.

Principal (initial amount), P = 10,500


Due interest, I = 15


From date: Feb 3, 2017


To date: Jan 3, 2022


Duration, T = 1,795 days (59 Months)


Commission fee (withdrawal), F = 794%


No. of days in a year, N = 365


R = Annual simple interest rate:

R = (N × I) ÷ (P × T) =


100% × (N × I) ÷ (P × T) =


((100 × N × I) ÷ (P × T))% =


((100 × 365 × 15) ÷ (10,500 × 1,795))% =


(547,500 ÷ 18,847,500)% ≈


0.029048945483% ≈


0.03%

B = Amount earned before deducting the
commission fee (withdrawal):

B = P + I =


10,500 + 15 =


10,515

D = Amount earned after deducting the
commission fee (withdrawal):

D = B - F =


B - F% × B =


(1 - F%) × B =


(1 - 794%) × 10,515 =


- 694% × 10,515 =


- 72,974.1

Pr = Investment profit:

Pr = D - P =


- 72,974.1 - 10,500 =


- 83,474.1

Signs: % percent, ÷ divide, × multiply, = equal, ≈ approximately equal;

Writing numbers: comma ',' as thousands separator; point '.' as a decimal mark;

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 10,500 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 15 units (Dollar, Euro, Pound, etc.), from date: Feb 03, 2017, to date: Jan 03, 2022, namely for a period of 1,795 days (59 Months) if the commission fee (withdrawal) is 794%.Dec 07 18:53 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 100 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 200 units (Dollar, Euro, Pound, etc.), from date: Feb 28, 2018, to date: Mar 28, 2025, namely for a period of 2,585 days (85 Months) if the commission fee (withdrawal) is 670%.Dec 07 18:51 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 25,000 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 18.5 units (Dollar, Euro, Pound, etc.), from date: May 21, 2005, to date: May 11, 2015, namely for a period of 3,642 days (120 Months without 10 Days) if the commission fee (withdrawal) is 406%.Dec 07 18:45 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 1.5 units (Dollar, Euro, Pound, etc.), from date: Dec 24, 0276, to date: Jul 24, 2018, namely for a period of 636,099 days (20,899 Months) if the commission fee (withdrawal) is 0.02%.Dec 07 18:43 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 646 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 516 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) is 0%.Dec 07 18:39 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 150 units (Dollar, Euro, Pound, etc.), in order to produce an interest of 260 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 0%.Dec 07 18:35 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: Feb 19, 0488, to date: Mar 19, 2048, namely for a period of 569,807 days (18,721 Months) if the commission fee (withdrawal) is 0%.Dec 07 18:32 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 1,125 units (Dollar, Euro, Pound, etc.), from date: May 16, 0974, to date: May 13, 2018, namely for a period of 381,310 days (12,528 Months without 3 Days) if the commission fee (withdrawal) is 0%.Dec 07 18:30 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: Sep 02, 0202, to date: Oct 10, 2017, namely for a period of 662,954 days (21,781 Months and 8 Days) if the commission fee (withdrawal) is 0%.Dec 07 18:29 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 740 units (Dollar, Euro, Pound, etc.), from date: Apr 28, 0270, to date: May 28, 0500, namely for a period of 84,036 days (2,761 Months) if the commission fee (withdrawal) is 0%.Dec 07 18:27 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 186 units (Dollar, Euro, Pound, etc.), from date: Apr 28, 2018, to date: May 28, 2035, namely for a period of 6,239 days (205 Months) if the commission fee (withdrawal) is 0%.Dec 07 18:27 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 318 units (Dollar, Euro, Pound, etc.), from date: Feb 28, 0360, to date: Mar 26, 2025, namely for a period of 608,156 days (19,981 Months without 2 Days) if the commission fee (withdrawal) is 0%.Dec 07 18:20 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 100 units (Dollar, Euro, Pound, etc.), from date: Mar 20, 2020, to date: Apr 03, 2025, namely for a period of 1,840 days (61 Months without 17 Days) if the commission fee (withdrawal) is 576%.Dec 07 18:04 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%.