Simple (Flat Rate) Interest Calculator: Calculate the Annual Simple (Flat) Interest Rate of the Invested Amount of Money (Principal, Initial Starting Amount Lent, Deposited or Borrowed), of 1,287 units (Dollar, Euro, Pound, etc.) To Produce a Sum of Money of 132 units, for a period of 613,002 days (20,141 Months without 27 Days)

Detailed calculations of the simple (flat) interest rate

Notations and variables used:

Principal (initial amount), P = 1,287

Amount produced by the interest, I = 132

From date: Oct 30, 338

To date: Mar 3, 2017

Duration, T = 613,002 days (20,141 Months without 27 Days)

Transaction fee rate, F% = 0%

Transaction fee amount, F

Number of days in a year, N = 365

Calculate R, the annual simple (flat) interest rate to earn the amount I

The simple (flat rate) interest calculation formula:

I = (P × R × T) ÷ N ⇒


R = (N × I) ÷ (P × T) =

100% × (N × I) ÷ (P × T) =

((100 × N × I) ÷ (P × T))% =

((100 × 365 × 132) ÷ (1,287 × 613,002))% =

(4,818,000 ÷ 788,933,574)% ≈


0.006106978026% ≈

0.01%

Calculate E, the amount earned after adding to the principal the amount produced by the simple (flat rate) interest

E = P + I =

1,287 + 132 =

1,419


Used symbols: % percent, ÷ divide, × multiply, = equal, ≈ approximately equal.

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

Simple (flat) interest rate, more calculations:

» Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,167 units (Dollar, Euro, Pound, etc.) to produce an amount of 123 units, for a period of 613,002 days (20,141 Months without 27 Days).

» Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,407 units (Dollar, Euro, Pound, etc.) to produce an amount of 141 units, for a period of 613,002 days (20,141 Months without 27 Days).

Calculator: annual simple interest rate to negociate to earn a certain amount

Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)

The latest calculated annual simple (flat) interest rates

Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,287 units (Dollar, Euro, Pound, etc.) to produce an amount of 132 units, for a period of 613,002 days (20,141 Months without 27 Days). May 05 11:28 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 400 units (Dollar, Euro, Pound, etc.) to produce an amount of 28 units, for a period of 1,795 days (59 Months). May 05 11:11 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 150,000 units (Dollar, Euro, Pound, etc.) to produce an amount of 200 units, for a period of 538,702 days (17,699 Months). The transaction fee is 15%. May 05 10:59 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 1,202,260 units (Dollar, Euro, Pound, etc.) to produce an amount of 176 units, for a period of 438,291 days (14,400 Months). May 05 10:51 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 124,800 units (Dollar, Euro, Pound, etc.) to produce an amount of 936 units, for a period of 803 days (27 Months without 19 Days). The transaction fee is 290%. May 05 10:42 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 21,463 units (Dollar, Euro, Pound, etc.) to produce an amount of 253 units, for a period of 695,450 days (22,849 Months). The transaction fee is 3%. May 05 10:41 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 100,000 units (Dollar, Euro, Pound, etc.) to produce an amount of 0.07 units, for a period of 396 days (13 Months). The transaction fee is 682%. May 05 10:38 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 161,519 units (Dollar, Euro, Pound, etc.) to produce an amount of 6 units, for a period of 549,690 days (18,060 Months). The transaction fee is 2%. May 05 10:33 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 102,300 units (Dollar, Euro, Pound, etc.) to produce an amount of 2 units, for a period of 459,475 days (15,096 Months). May 05 10:32 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,315 units (Dollar, Euro, Pound, etc.) to produce an amount of 4 units, for a period of 389,692 days (12,804 Months without 22 Days). May 05 10:30 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 100,000 units (Dollar, Euro, Pound, etc.) to produce an amount of 10 units, for a period of 606,303 days (19,920 Months). May 05 10:28 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 100,000 units (Dollar, Euro, Pound, etc.) to produce an amount of 10 units, for a period of 474,816 days (15,600 Months). The transaction fee is 230%. May 05 10:18 UTC (GMT)
Calculate the simple (flat) interest rate of the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 15,000 units (Dollar, Euro, Pound, etc.) to produce an amount of 16,125 units, for a period of 418,963 days (13,765 Months). May 05 10:18 UTC (GMT)
All the 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%.