Calculate the due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 4,000 units (Dollar, Euro, Pound, etc.), from date: Apr 11, 2018, to date: May 11, 2018, namely for a period of 30 days, with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 5%.

Principal (initial amount), P = 4,000


Annual simple interest rate, R = 2%


From date: Apr 11, 2018


To date: May 11, 2018


Duration, T = 30 days


Commission fee (withdrawal or payment), F = 5%


No. of days in a year, N = 365


I = Simple interest:

I = (P × R × T) ÷ N =


(4,000 × 2% × 30) ÷ 365 =


(4,000 × 2 × 30) ÷ (365 × 100) =


240,000 ÷ 36,500 ≈


6.575342465753 ≈


6.58

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

B = P + I =


4,000 + 6.575342465753 =


4,006.575342465753 ≈


4,006.58

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

D = B - F =


B - F% × B =


(1 - F%) × B =


(1 - 5%) × 4,006.575342465753 =


95% × 4,006.575342465753 ≈


3,806.246575342465 ≈


3,806.25

Pr = Investment profit:

Pr = D - P =


3,806.246575342465 - 4,000 =


- 193.753424657535 ≈


- 193.75

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 20,000 units (Dollar, Euro, Pound, etc.), from date: Jul 01, 2012, to date: Jul 01, 2017, 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 3%. Aug 19 16:39 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: Apr 11, 2018, to date: May 11, 2018, namely for a period of 30 days, with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 5%. Aug 19 16:39 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, 0172, to date: Jun 25, 2017, namely for a period of 673,903 days (22,141 Months), with an annual simple flat interest rate of 15% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 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: Mar 28, 0482, to date: Apr 28, 2016, namely for a period of 560,313 days (18,409 Months), with an annual simple flat interest rate of 0.01% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 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 09, 2017, to date: May 09, 2017, namely for a period of 30 days, with an annual simple flat interest rate of 3% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 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: Jun 08, 2017, to date: Sep 08, 2017, namely for a period of 92 days (3 Months), with an annual simple flat interest rate of 3.1% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 3,312 units (Dollar, Euro, Pound, etc.), from date: May 19, 2015, to date: May 19, 2019, namely for a period of 1,461 days (48 Months), with an annual simple flat interest rate of 3,312% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 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: Dec 04, 2016, to date: Jan 04, 2017, namely for a period of 31 days, with an annual simple flat interest rate of 3% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 25,000 units (Dollar, Euro, Pound, etc.), from date: Mar 28, 2017, to date: Mar 28, 2027, namely for a period of 3,652 days (120 Months), with an annual simple flat interest rate of 4.22% if the commission fee (withdrawal or payment) is 408%. Aug 19 16:39 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: Nov 04, 2016, to date: Dec 04, 2017, namely for a period of 395 days (13 Months), with an annual simple flat interest rate of 5% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 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 28, 2016, to date: Mar 28, 2017, namely for a period of 334 days (11 Months), with an annual simple flat interest rate of 0.01% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 279,000,000 units (Dollar, Euro, Pound, etc.), from date: Mar 26, 2019, to date: Apr 26, 2019, namely for a period of 31 days, with an annual simple flat interest rate of 6% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:39 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 1,800 units (Dollar, Euro, Pound, etc.), from date: May 14, 2019, to date: Dec 14, 2019, namely for a period of 214 days (7 Months), with an annual simple flat interest rate of 12% if the commission fee (withdrawal or payment) is 0%. Aug 19 16:38 UTC (GMT)
All users calculated simple flat rate interest values