Calculate the due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 200,000 units (Dollar, Euro, Pound, etc.), from date: Sep 4, 2017, to date: Oct 4, 2018, namely for a period of 395 days (13 Months), with an annual simple flat interest rate of 10% if the commission fee (withdrawal or payment) is 0%.

Principal (initial amount), P = 200,000


Annual simple interest rate, R = 10%


From date: Sep 4, 2017


To date: Oct 4, 2018


Duration, T = 395 days (13 Months)


Commission fee (withdrawal or payment), F = 0%


No. of days in a year, N = 365


I = Simple interest:

I = (P × R × T) ÷ N =


(200,000 × 10% × 395) ÷ 365 =


(200,000 × 10 × 395) ÷ (365 × 100) =


790,000,000 ÷ 36,500 ≈


21,643.835616438356 ≈


21,643.84

B = Amount earned:

B = P + I =


200,000 + 21,643.835616438356 =


221,643.835616438356 ≈


221,643.84

Signs: % percent, ÷ divide, × multiply, = equal, ≈ approximately 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 200,000 units (Dollar, Euro, Pound, etc.), from date: Sep 04, 2017, to date: Oct 04, 2018, namely for a period of 395 days (13 Months), with an annual simple flat interest rate of 10% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:41 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 494 units (Dollar, Euro, Pound, etc.), from date: Dec 06, 2018, to date: Dec 06, 2019, namely for a period of 365 days (12 Months), with an annual simple flat interest rate of 10% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,300 units (Dollar, Euro, Pound, etc.), from date: Dec 01, 0562, to date: May 15, 2020, namely for a period of 532,324 days (17,489 Months and 14 Days), with an annual simple flat interest rate of 1% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,300 units (Dollar, Euro, Pound, etc.), from date: Dec 01, 0562, to date: May 15, 2020, namely for a period of 532,324 days (17,489 Months and 14 Days), with an annual simple flat interest rate of 1% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 13,800 units (Dollar, Euro, Pound, etc.), from date: Mar 15, 2018, to date: Apr 15, 2023, namely for a period of 1,857 days (61 Months), with an annual simple flat interest rate of 98% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 211,000 units (Dollar, Euro, Pound, etc.), from date: Jan 10, 2018, to date: Jan 10, 2019, namely for a period of 365 days (12 Months), with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 928%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,000,000 units (Dollar, Euro, Pound, etc.), from date: Mar 01, 0986, to date: Jan 01, 2018, namely for a period of 376,871 days (12,382 Months), with an annual simple flat interest rate of 18% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,000,000 units (Dollar, Euro, Pound, etc.), from date: Mar 01, 0986, to date: Jan 01, 2018, namely for a period of 376,871 days (12,382 Months), with an annual simple flat interest rate of 18% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 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: Dec 31, 0350, to date: Jan 31, 2017, namely for a period of 608,526 days (19,993 Months), with an annual simple flat interest rate of 3% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:40 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: May 25, 2017, to date: Jun 25, 2017, namely for a period of 31 days, with an annual simple flat interest rate of 15% if the commission fee (withdrawal or payment) is 850%. Oct 26 13:40 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,130 units (Dollar, Euro, Pound, etc.), from date: Sep 12, 1997, to date: Oct 12, 2018, namely for a period of 7,700 days (253 Months), with an annual simple flat interest rate of 1% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:39 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 31, 2019, to date: Feb 28, 2020, namely for a period of 393 days (13 Months without 3 Days), with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:39 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 25, 0406, to date: Oct 25, 2016, namely for a period of 588,224 days (19,326 Months), with an annual simple flat interest rate of 3% if the commission fee (withdrawal or payment) is 0%. Oct 26 13:39 UTC (GMT)
All users calculated simple flat rate interest values