Shail Mehta

User Can Do Mathematical Operation in WordPress Backend Side
It gives you the ability to do Mathematical Operation
<h4>Free Features</h4>
<ul>
<li>Mathematical Operations – Addition,Substraction , Multiphication , Divison, Modulo, Square , Square Root , Round Value ,Sine ,Cosine , Tangent Operations with Css</li>
</ul>

Simple Calculator

Simple Calculator Plugin is Use For Caclulate Mathematical Operations.

financialcalculators

AccurateCalculators.com

The <a href="https://AccurateCalculators.com/calculator-plugins/loan-plugin" rel="nofollow ugc">AC Loan Calculator Plugin (try it now!)</a> is a versatile loan calculator that creates date-based amortization schedules, and interactive charts.
Supports 90 currencies, six date formats, and 15 languages.
Now highly customizable via extensive configuration options.
Choose from four predefined sizes or customize via the configuration options. Fully responsive with touch support.
Rebranding with your site’s name is supported and encouraged.
The plugin works via: 
(a) Shortcode in posts/pages 
(b) Widget area 
(c) Template file
See usage under installation for details.
NEW: Upgrade to the free <a href="https://accuratecalculators.com/calculator-plugins/loan-plus-plugin" rel="nofollow ugc">AC Loan Calculator Plus</a> v2.0 for a printable schedul.

AC's Loan Calculator

A versatile loan calculator with a date-based amortization schedule and charts. Rebrandable. Supports 90 currencies, 6 date formats, and 15 languages.

Simple Calculator vs AC's Loan Calculator