Calculate the due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 0 units (Dollar, Euro, Pound, etc.), from date: Jun 21, 194, to date: May 18, 2017, namely for a period of 665,803 days (21,875 Months without 3 Days), with an annual simple flat interest rate of 0% if the commission fee (withdrawal) is 0%.

Principal (initial amount), P = 0


Annual simple interest rate, R = 0%


From date: Jun 21, 194


To date: May 18, 2017


Duration, T = 665,803 days (21,875 Months without 3 Days)


Commission fee (withdrawal), F = 0%


No. of days in a year, N = 365


I = Simple interest:

I = (P × R × T) ÷ N =


(0 × 0% × 665,803) ÷ 365 =


(0 × 0 × 665,803) ÷ (365 × 100) =


0 ÷ 36,500 =


0

B = Amount earned:

B = P + I =


0 + 0 =


0

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

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

Calculate simple flat rate interest on a principal borrowed, lent

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

Latest calculated simple flat rate interest values

Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 0 units (Dollar, Euro, Pound, etc.), from date: Jun 21, 0194, to date: May 18, 2017, namely for a period of 665,803 days (21,875 Months without 3 Days), with an annual simple flat interest rate of 0% if the commission fee (withdrawal) is 0%. Jan 17 21:25 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 250,000,000 units (Dollar, Euro, Pound, etc.), from date: Mar 23, 2017, to date: Mar 23, 2018, namely for a period of 365 days (12 Months), with an annual simple flat interest rate of 930% if the commission fee (withdrawal) is 4%. Jan 17 21:25 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of - 1,650 units (Dollar, Euro, Pound, etc.), from date: Apr 24, 0466, to date: Nov 21, 1998, namely for a period of 559,762 days (18,391 Months without 3 Days), with an annual simple flat interest rate of 0.01% if the commission fee (withdrawal) is 0%. Jan 17 21:24 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 100 units (Dollar, Euro, Pound, etc.), from date: Apr 13, 0662, to date: May 13, 2018, namely for a period of 495,299 days (16,273 Months), with an annual simple flat interest rate of 20% if the commission fee (withdrawal) is 0%. Jan 17 21:24 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 20,000 units (Dollar, Euro, Pound, etc.), from date: Jan 17, 2022, to date: Feb 17, 2022, namely for a period of 31 days, with an annual simple flat interest rate of 10% if the commission fee (withdrawal) is 0%. Jan 17 21:24 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 100 units (Dollar, Euro, Pound, etc.), from date: Mar 18, 0140, to date: Mar 18, 2021, namely for a period of 687,021 days (22,572 Months), with an annual simple flat interest rate of 5% if the commission fee (withdrawal) is 0%. Jan 17 21:23 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 100 units (Dollar, Euro, Pound, etc.), from date: Apr 13, 0662, to date: May 13, 2018, namely for a period of 495,299 days (16,273 Months), with an annual simple flat interest rate of 20% if the commission fee (withdrawal) is 0%. Jan 17 21:23 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1 units (Dollar, Euro, Pound, etc.), from date: Feb 11, 2018, to date: Mar 09, 2018, namely for a period of 26 days, with an annual simple flat interest rate of 0.03% if the commission fee (withdrawal) is 560%. Jan 17 21:23 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1.4 units (Dollar, Euro, Pound, etc.), from date: Nov 27, 2017, to date: Feb 27, 2056, namely for a period of 13,971 days (459 Months), with an annual simple flat interest rate of 32% if the commission fee (withdrawal) is 0%. Jan 17 21:23 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,000 units (Dollar, Euro, Pound, etc.), from date: Jan 17, 2022, to date: Feb 17, 2022, namely for a period of 31 days, with an annual simple flat interest rate of 10% if the commission fee (withdrawal) is 0%. Jan 17 21:23 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 100 units (Dollar, Euro, Pound, etc.), from date: Jun 16, 2017, to date: Jul 16, 2017, namely for a period of 30 days, with an annual simple flat interest rate of 3.5% if the commission fee (withdrawal) is 894%. Jan 17 21:23 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,500 units (Dollar, Euro, Pound, etc.), from date: Dec 31, 0810, to date: Jan 01, 2017, namely for a period of 440,484 days (14,473 Months without 30 Days), with an annual simple flat interest rate of 5% if the commission fee (withdrawal) is 0%. Jan 17 21:22 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 100 units (Dollar, Euro, Pound, etc.), from date: Jun 05, 2017, to date: Jul 05, 2017, namely for a period of 30 days, with an annual simple flat interest rate of 748% if the commission fee (withdrawal) is 0%. Jan 17 21:22 UTC (GMT)
All users calculated simple flat rate interest values


Simple flat rate interest.

Interest

  • When someone lends money to someone else, the borrower usually pays a fee to the lender. So the due interest is a sum paid or charged for the use of money or for borrowing money. The interest depends on: 1) the period of the loan 2) the amount of money lent or borrowed (called principal) and 3) the interest rate (the percentage of the principal charged as interest).
  • For example, for some bank deposits is not uncommon to pay an interest rate of 3.5% on the principal, annualy. Banks are also using these temporarily owned amounts of money by introducing them back into the cash flow circuit or are granting loans (for investments, for example) on which they are again charging interest.

Annual simple flat interest rate

  • The simple annual interest rate, or the percentage of the principal charged as interest for a period of one year, shows us that for an amount of 100 units (ex: Dollar, Euro, Yen, Pound, Franc), in a year, the interest is calculated as a percentage p% of the principal: I = p% × 100 units.
  • A deposit of S units generates a one year simple interest of: I = S × p% units, and in n years, the same deposit of S units generates an interest of: I = S × p% × n units.

Annual simple flat rate interest formula:

  • I = S × p% × n

  • I = n years simple flat rate 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

Examples of how the simple flat rate interest formula works:

  • 1) What interest, I, generates in n = 5 years a principal of S = 20,000 units if the annual simple flat interest rate is p% = 3.5%?
    Answer:
    I = S × p% × n = 20,000 × 3.5% × 5 = 20,000 × 3.5 ÷ 100 × 5 = 1,000 × 3.5 = 3,500 units
  • 2) What is the simple flat interest rate, p%, if a principal of S = 12,000 units is charged a n = 6 years interest of I = 2,880 units?
    Answer:
    I = S × p% × n =>
    p% = I ÷ (S × n) = 2,880 ÷ (12,000 × 6) = 0.04 = 4%.

Annual simple flat rate interest formula calculated for a period of n years:

  • Interest, I = S × p% × n
  • Principal, S = I ÷ (p% × n)
  • Interest rate, p% = I ÷ (S × n)
  • Number of years (period): n = I ÷ (S × p%)

Annual simple flat rate interest formula calculated for a period of m months:

  • Interest, I = (S × p% × m) ÷ 12
  • Principal, S = (12 × I) ÷ (p% × m)
  • Interest rate, p% = (12 × I) ÷ (S × m)
  • Number of months of the period, m = (12 × I) ÷ (S × p%)

Annual simple flat rate interest formula calculated for a period of d days:

  • Interest, I = (S × p% × d) ÷ 365
  • Principal, S = (365 × I) ÷ (p% × d)
  • Simple flat interest rate, p% = (365 × I) ÷ (S × d)
  • Number of days of the period, d = (365 × I) ÷ (S × p%)

More examples of how the simple flat rate interest formula works:

  • 1) Calculate the due interest on a principal of S = 400 units in m = 5 months, with a simple flat interest rate of p% = 4%.
    Answer:
    I = (S × p% × m) ÷ 12 = (400 × 4% × 5) ÷ 12 = (400 × 4 ÷ 100 × 5) ÷ 12 = 16 × 5 ÷ 12 = 20 ÷ 3 = 6.67 units
  • 2) Calculate the due interest generated by a principal of S = 400 units in m = 5 months if the simple flat interest rate of p% = 4.5%.
    Answer:
    I = (S × p% × m) ÷ 12 = (400 × 4.5% × 5) ÷ 12 = (400 × 4.5 ÷ 100 × 5) ÷ 12 = 18 × 5 ÷ 12 = 15 ÷ 2 = 7.5 units.