Tigra Calculator is free JavaScript widget that allows your visitors to perform arithmetic calculations instantly on the HTML form. Nice looking Pop-up calculator can be easily attached to any existing form element. Well known look and feel makes calculator usage intuitive.

• Calculators can be attached to any number of single form elements
• Supports all arithmetical calculations
• Most javascript enabled browsers supported
• Future browser's versions ready
• Object oriented easy to read JavaScript implementation for those who want to learn DHTML programming
• Easy setup - no programming skills required.
• The script is free for any applications

• Support of trigonometric, logarithmic and exponential functions
• Standard memory operations set
• Flexible functionality set: any of declared functions (operations) can be included to or excluded
• Customizable button order - design your own calculator layout in minutes
• Styles and skins support - calculator can be perfectly adjusted for feel and look of your site
• Popup, modal, onpage modes versions
• Free setup support, free product updates, discounts for other products