This plugin has been closed and is no longer available for download.

Multi-Carrier Shipping Calculator for WP eCommerce


Accurate Multi-Carrier Real-time Shipping Rates for the WP eCommerce Cart

Subscription to AuctionInc required.

Our ShippingCalc Plug-In for WP eCommerce instantly provides you access to our Shipping Rates API and allows you to integrate rates from multiple carriers (DHL, FedEx, USPS, UPS) into your store. There are many advanced features in our ShippingCalc Plug-In: drop-shipping from multiple origins, USPS flat rate box calculations, insurance, flexible handling, packaging material weight,and more. Our technology is especially unique in its capability to accurately generate rates for items/quantities that must be packed into multiple boxes.

Features Include:

  • Intelligent packaging for multiple items and quantities
  • Domestic and international services supported from any origin
  • Carrier accounts not required
  • Advanced capabilities for determining fit into USPS flat rate boxes
  • Separate configuration for packing materials weight
  • Automatically determines dimensional weight pricing
  • Supports both flat rate and carrier-calculated rates
  • Configure handling per item, package, or order
  • Charge handling by flat fee or percentage
  • Determine insurance cost based on value
  • Supports items limited to particular services
  • Discounts or free shipping based on the order price
  • Supports shipping from multiple locations by item
  • All accessorial carrier charges supported
  • Offer pickup or delivery based on zip code range
  • Packaging data pushed into your orders

There are many available plug-ins to help merchants with shipping, but none with the capabilities we offer with our WP eCommerce ShippingCalc Plug-In, powered by AuctionInc’s patented shipping rate engine. “Take the guess out of shipping”, so the shipping prices quoted to your customers are accurate based on your unique business needs.

ShippingCalc requires the WP eCommerce plugin as well as a subscription to AuctionInc.


  • Enable AuctionInc ShippingCalc Module
  • Configure AuctionInc ShippingCalc General Settings
  • Set specific ShippingCalc Product Settings


Guide to Plug-In Module Installation

  1. Upload the folder ‘auctioninc-shipcalc-for-wpe’ to the ‘/wp-content/plugins/’ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.
  3. Register at AuctionInc for a WP eCommerce ShippingCalc Plug-In subscription.
  4. Under Settings-> Store-> Shipping -> External Shipping Calculators, find the AuctionInc ShippingCalc section and fill out the required fields.
  5. You may add additional settings or override the default settings for a given product in the ShippingCalc section of your Product pages.


Do I need an AuctionInc account to use this module?

Yes. To register, please go here.

Please see our website HelpDesk for more FAQs.


Awesome Support – Amazingly Accurate Packing Calculator

We migrated a client from the UPS Shipping Calculator over to Auctioninc’s shipping calculator for WP eCommerce because ExtensionWorks ended their product. We were never able to get ExtensionWorks plugin working correctly – shipping was always off so we ended up having to maniupulate the dimensions of our boxes and products to get the calculations to come “semi” close to our actual charges. Luckily we found this plugin and within an hour, had it set up and running on a dev site and it just worked. Shipping calculations are spot on – we didn’t have to enter in our box sizes (they came up with a REALLY simple way of calculating box sizes for multiple items in an order). We moved it to our live site after going back through all of the products and putting in their correct dimensions and it just works. No problems at all. It’s been on the site for 3 weeks now and we haven’t had one issue. Highly recommend. Big thanks to Doug for his quick responses and knowledge. He answered our questions right away and was really easy to work with. Great plugin!

Read all 1 review

Contributors & Developers

“Multi-Carrier Shipping Calculator for WP eCommerce” is open source software. The following people have contributed to this plugin.



version 1.2 [1-19-16]

  • Improved: Lot Size support added to product-level configuration

version 1.1 [6-23-15]

  • Improved: new calculation method Domestic Free
  • Improved: FixedRate detail in packaging data
  • Improved: added DHL domestic services to OnDemand selection
  • Bugfix: FixedFee2 incorrectly set to FixedFee1
  • Bugfix: FixedFee2 not allowing setting to 0

version 1.0 [4-06-15]

  • initial release