Calculate the due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,000 units (Dollar, Euro, Pound, etc.), from date: Feb 3, 2019, to date: Mar 3, 2019, namely for a period of 28 days, with an annual simple flat interest rate of 5% if the commission fee (withdrawal or payment) is 0%.

Principal (initial amount), P = 1,000


Annual simple interest rate, R = 5%


From date: Feb 3, 2019


To date: Mar 3, 2019


Duration, T = 28 days


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


No. of days in a year, N = 365


I = Simple interest:

I = (P × R × T) ÷ N =


(1,000 × 5% × 28) ÷ 365 =


(1,000 × 5 × 28) ÷ (365 × 100) =


140,000 ÷ 36,500 ≈


3.835616438356 ≈


3.84

B = Amount earned:

B = P + I =


1,000 + 3.835616438356 =


1,003.835616438356 ≈


1,003.84

Signs: % percent, ÷ divide, × multiply, ≈ 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 500,000 units (Dollar, Euro, Pound, etc.), from date: Jan 18, 2018, to date: Feb 18, 2018, namely for a period of 31 days, with an annual simple flat interest rate of 15% if the commission fee (withdrawal or payment) is 0%. Jun 25 08:00 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: Feb 03, 2019, to date: Mar 03, 2019, namely for a period of 28 days, with an annual simple flat interest rate of 5% if the commission fee (withdrawal or payment) is 0%. Jun 25 08:00 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 2,676 units (Dollar, Euro, Pound, etc.), from date: Sep 08, 2016, to date: Sep 08, 2018, namely for a period of 730 days (24 Months), with an annual simple flat interest rate of 0.24% if the commission fee (withdrawal or payment) is 0%. Jun 25 08:00 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 500 units (Dollar, Euro, Pound, etc.), from date: Dec 22, 2007, to date: Apr 19, 2018, namely for a period of 3,771 days (124 Months without 3 Days), with an annual simple flat interest rate of 0.02% if the commission fee (withdrawal or payment) is 0%. Jun 25 08:00 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 2,000 units (Dollar, Euro, Pound, etc.), from date: Jan 26, 2018, to date: Feb 26, 2020, namely for a period of 761 days (25 Months), with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 0%. Jun 25 08:00 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: Feb 13, 2019, to date: Mar 13, 2019, namely for a period of 28 days, with an annual simple flat interest rate of 400% if the commission fee (withdrawal or payment) is 31%. Jun 25 08:00 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 150,070 units (Dollar, Euro, Pound, etc.), from date: Sep 09, 2018, to date: Sep 30, 2019, namely for a period of 386 days (12 Months and 21 Days), with an annual simple flat interest rate of 5.5% if the commission fee (withdrawal or payment) is 0%. Jun 25 08:00 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 30,000 units (Dollar, Euro, Pound, etc.), from date: Jan 08, 2019, to date: Jan 08, 2024, namely for a period of 1,826 days (60 Months), with an annual simple flat interest rate of 9% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:59 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: Aug 09, 2018, to date: Sep 09, 2019, namely for a period of 396 days (13 Months), with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 8%. Jun 25 07:59 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 4,000 units (Dollar, Euro, Pound, etc.), from date: Feb 19, 2018, to date: Feb 19, 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 0%. Jun 25 07:59 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 5,000 units (Dollar, Euro, Pound, etc.), from date: Jan 01, 2019, to date: Jan 01, 2021, namely for a period of 731 days (24 Months), with an annual simple flat interest rate of 10% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:59 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: Jul 12, 2017, to date: Oct 12, 2017, namely for a period of 92 days (3 Months), with an annual simple flat interest rate of 7% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:59 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 7,095 units (Dollar, Euro, Pound, etc.), from date: Mar 02, 2019, to date: Apr 02, 2020, namely for a period of 397 days (13 Months), with an annual simple flat interest rate of 2.5% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:59 UTC (GMT)
All users calculated simple flat rate interest values