WordPress.org

1. Unzip "love-calculator-wp-widget-1.0.zip" and upload the contained files to the "/wp-content/plugins/" directory
2. Activate the plugin through the "Plugins" menu in WordPress

Add this calculator to sidebar

1. Install "Love Calculator" through the WordPress admin menu of Appearance or Design and then widgets.

Add this calculator to a post or a page

1. Place [calculatornet_love_calculator] in the content to insert into a post.