Description
Standard JavaScript floating-point calculations suffer from IEEE-754 binary representation drift (0.1 + 0.2 === 0.30000000000000004). In multi-year loan schedules, this drift compounds across monthly periods, leaving non-zero terminal balances.
FinEngine Loan Calculator introduces academic-grade, deterministic financial mathematics into the WordPress ecosystem.
Key Features:
* Zero Float Drift Guarantee: Actuarial reducing-balance calculations with strict integer sub-unit Poisha scaling.
* Terminal Reconciliation Rule: Mathematical boundary enforcement guaranteeing the closing principal balance liquidates cleanly to exactly 0.00.
* South Asian Numbering Conventions: Native support for Lakh and Crore formatting (2,45,87,500.00) for Bangladeshi Taka (BDT) and Indian Rupee (INR).
* Full-Site Editing (Gutenberg) Block: Modern WordPress block with live inspector controls.
* Universal Shortcode: Embed anywhere with [finengine_calculator] (compatible with Elementor, Divi, Beaver Builder, and Classic Editor).
* 100% Client-Side Privacy: Zero server tracking, zero AJAX calls, and no cookies. Customer loan details never leave the browser.
* Academic Backing: Developed by Md Golam Mubasshir Rafi in accordance with CFSBR (Centre for Fintech and Strategic Business Research) computational working papers and archived on CERN Zenodo.
Official Documentation & Interactive Tools:
* Official WordPress.org Plugin: https://wordpress.org/plugins/finengine-calculator/
* Live Portal & Visual Shortcode Builder: https://finengine.js.org/wordpress/
* Academic Methodology & Working Paper: https://finengine.js.org/methodology/
* Flagship Computational Framework: https://finengine.js.org/
Source Code and Build
The uncompiled, human-readable source code for all bundled JavaScript and CSS assets (including build/index.js) is publicly maintained at:
https://github.com/gmrafi/FinEngine-WP
To build the production bundle from source:
1. Clone repository: git clone https://github.com/gmrafi/FinEngine-WP.git
2. Install dependencies: npm install
3. Compile production bundle: npm run build
Blocks
This plugin provides 1 block.
- FinEngine Loan Calculator Deterministic reducing-balance loan & EMI calculator with zero drift and Lakh/Crore currency support.
Installation
- Upload the
finengine-calculatorfolder to your/wp-content/plugins/directory, or install directly through the WordPress Plugins screen. - Activate the plugin through the ‘Plugins’ menu in WordPress.
- Insert the FinEngine Loan Calculator block into any post or page, or use the shortcode
[finengine_calculator].
FAQ
-
Does this calculator send data to external servers?
-
No. All calculations are executed 100% client-side inside the user’s browser runtime with zero network latency and maximum privacy.
-
What currencies are supported?
-
BDT (Bangladeshi Taka) and INR (Indian Rupee) with native Lakh/Crore grouping, as well as USD, EUR, GBP, and standard ISO formats.
-
How do I customize default values?
-
Go to Settings > FinEngine Calculator in your WordPress admin dashboard, or pass attributes directly in the shortcode:
[finengine_calculator currency=”BDT” default_principal=”1000000″ default_rate=”9.5″ default_tenure=”60″]
Reviews
There are no reviews for this plugin.
Contributors & Developers
“FinEngine Calculator” is open source software. The following people have contributed to this plugin.
Contributors
Translate “FinEngine Calculator” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.0
- Initial public release with deterministic actuarial amortization engine.
- Native BDT Lakh/Crore grouping support.
- Gutenberg block (v3 API) and universal shortcode support.
- Built by Md Golam Mubasshir Rafi (Centre for Fintech and Strategic Business Research – CFSBR).