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PHP Mortgage Calculator is a script that can be used to figure out monthly payments of a home mortgage loan, based on the home's sale price, the term of the loan desired, buyer's down payment percentage, and the loan's interest rate. This calculator factors in PMI (Private Mortgage Insurance) for loans where less than 20% is put as a down payment. Also taken into consideration are the town property taxes, and their effect on the total monthly mortgage payment.
Price: Freeware

This loan calculator can be used to figure out regular payments of any kind of loan, based on the loan amount, loan length, interest rate and pay periodicity. phpLoanCalc uses template, that's why you can easily change its appearance for seamless integration with your website. Click the download button to get this free calculator for your website!
Price: Freeware

Calculator with several advanced functions such as decimal to binary, degree to radian, hexadecimal to decimal, etc. Updated: Now uses only ONE single file.
Price: Freeware

This script is written for calculation of historically correct string diameters on early baroque violins, violas, cellos or any other instruments tuned in 5th, which use gut and historical wound gut strings.
Price: Freeware

All you do is enter two valid ZIP codes and the script comes back with the approximate distance between them.
Price: $45.00