Calculate interest on loan given at various date with moving libor rate


New Member
Jun 21, 2018
Hi All

Looking forward for your advice and help in calculating interest on loan given at various date. Details as below

a) I have below data as loan disbursement date during the period

Date of Loan Loan Amount
A3-Jan-2016 $ 1,500.00
B3-Jan-2016 $ 200.00
C3-Jan-2016 $ 300.00
A16-Jan-2016 $ 1,500.00
B20-Jan-2016 $ 2,000.00
C15 Dec-2016 $ 1,000.00
C21 Dec-2016 $ 5,000.00
B28 Dec-2016 $ 2,000.00
A28-Feb-2017 $ 3,000.00
B22-Mar-2017 $ 1,500.00
C29-Mar-2017 $ 500.00
A19-Apr-2017 $ 2,000.00
A15-May-2017 $ 1,500.00


b) I have Libor closing rate month wise as below

Month / LIBOR rateYearAverage
January20160.856 %
February20160.870 %
March20160.901 %
April20160.903 %
May20160.933 %
June20160.936 %
July20160.999 %
August20161.198 %
September20161.247 %
October20161.259 %
November20161.269 %
December20161.306 %
January20171.340 %
February20171.351 %
March20171.426 %
April20171.417 %
May20171.425 %


Requirement : Calculate month-wise Interest due from the date of loan till May 2017 applying 5%+Libor Rate(given in above table)

Ex: Party A has give loan on 3rd Jan 2016 for $1500 so have to calculate interest due till May 2017 , month-wise using the constant interest rate 5% + Libor rate as per table above(variable)

Kindly guide how to map the Libor interest rate from the date of loan , month-wise so that the calculation is simple and meaningful.

Thank You

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