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: Jun 1, 2018, to date: Jul 1, 2018, namely for a period of 30 days, with an annual simple flat interest rate of 10% if the commission fee (withdrawal or payment) is 0%.

Principal (initial amount), P = 1,000


Annual simple interest rate, R = 10%


From date: Jun 1, 2018


To date: Jul 1, 2018


Duration, T = 30 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 × 10% × 30) ÷ 365 =


(1,000 × 10 × 30) ÷ (365 × 100) =


300,000 ÷ 36,500 ≈


8.219178082192 ≈


8.22

B = Amount earned:

B = P + I =


1,000 + 8.219178082192 =


1,008.219178082192 ≈


1,008.22

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 1,000 units (Dollar, Euro, Pound, etc.), from date: Jun 01, 2018, to date: Jul 01, 2018, namely for a period of 30 days, with an annual simple flat interest rate of 10% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 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: Mar 30, 2018, to date: Apr 30, 2018, namely for a period of 31 days, with an annual simple flat interest rate of 12% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 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: Sep 28, 2018, to date: Oct 28, 2018, namely for a period of 30 days, with an annual simple flat interest rate of 54.75% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 4,900 units (Dollar, Euro, Pound, etc.), from date: Feb 02, 2018, to date: Feb 02, 2019, namely for a period of 365 days (12 Months), with an annual simple flat interest rate of 3% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 443 units (Dollar, Euro, Pound, etc.), from date: Sep 01, 2014, to date: May 20, 2019, namely for a period of 1,722 days (56 Months and 19 Days), with an annual simple flat interest rate of 0.02% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 7,000 units (Dollar, Euro, Pound, etc.), from date: Aug 28, 2018, to date: Aug 28, 2021, namely for a period of 1,096 days (36 Months), with an annual simple flat interest rate of 8% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 10,000 units (Dollar, Euro, Pound, etc.), from date: Jan 04, 2019, to date: Jan 04, 2029, namely for a period of 3,653 days (120 Months), with an annual simple flat interest rate of 1% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 3,105 units (Dollar, Euro, Pound, etc.), from date: Aug 01, 2008, to date: Mar 14, 2018, namely for a period of 3,512 days (115 Months and 13 Days), with an annual simple flat interest rate of 11% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 2,700 units (Dollar, Euro, Pound, etc.), from date: Nov 20, 2008, to date: Mar 02, 2018, namely for a period of 3,389 days (112 Months without 18 Days), with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:58 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 45,000 units (Dollar, Euro, Pound, etc.), from date: Jul 20, 2018, to date: Jul 20, 2021, namely for a period of 1,096 days (36 Months), with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:57 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 09, 2018, to date: Mar 09, 2018, namely for a period of 28 days, with an annual simple flat interest rate of 2% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:57 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 2,100 units (Dollar, Euro, Pound, etc.), from date: Oct 09, 2017, to date: Nov 09, 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 2%. Jun 25 07:57 UTC (GMT)
Calculate due interest earned by a principal (initial amount of money lent, deposited or borrowed) of 10,000 units (Dollar, Euro, Pound, etc.), from date: Nov 22, 2018, to date: Nov 22, 2020, namely for a period of 731 days (24 Months), with an annual simple flat interest rate of 3% if the commission fee (withdrawal or payment) is 0%. Jun 25 07:57 UTC (GMT)
All users calculated simple flat rate interest values