Title: Product Fields, Addons and Price Calculator for WooCommerce Author: Krzysztof Piątkowski Published: Seeɗto 9, 2022 Last modified: Seeɗto 29, 2024 --- Search plugins ![](https://ps.w.org/wc-kalkulator/assets/banner-772x250.png?rev=2707504) This plugin **hasn’t been tested with the latest 3 major releases of WordPress**. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress. ![](https://ps.w.org/wc-kalkulator/assets/icon-256x256.gif?rev=2767665) # Product Fields, Addons and Price Calculator for WooCommerce By [Krzysztof Piątkowski](https://profiles.wordpress.org/wckalkulator/) [Download](https://downloads.wordpress.org/plugin/wc-kalkulator.1.6.1.zip) * [Details](https://fuc.wordpress.org/plugins/wc-kalkulator/#description) * [Reviews](https://fuc.wordpress.org/plugins/wc-kalkulator/#reviews) * [Development](https://fuc.wordpress.org/plugins/wc-kalkulator/#developers) [Support](https://wordpress.org/support/plugin/wc-kalkulator/) ## Description **WC Kalkulator (WCK)** is a WordPress plugin which extends the WooCommerce to use custom extra fields with products and orders. Extra product fields can be used to calculate product price and save information in order details. * Absolutely **FREE plugin** with **PRO features** * **23 field types** to get customer input * Price calculation based on **formula**, **conditional expression** or **price add-ons** (product addons). If you appreciate my work – [Buy me a Coffee](https://www.buymeacoffee.com/piatkowski) or [Donate via PayPal](https://www.paypal.com/donate/?hosted_button_id=5DNZK72H5YCBY) Sell products by anything. You are not limited to sell only by length, area, volume, etc. **You decide how the prices will be calculated.** WooCommerce Product Fields and Price Calculator plugin allows **full freedom** to define fields and formulas for calculating custom price. You can create a personalized product in your store. ### Documentation * Documentation @ [wckalkulator.com](https://wckalkulator.com) * GitHub @ [github.com/piatkowski](https://github.com/piatkowski/wckalkulator) ### 22 Field Types (ALL FREE) ``` 1. Attachment (URL/File) 2. Checkbox 3. Multi checkbox (group) 4. Color Picker 5. Color Swatches 6. Date Picker 7. Date Range Picker 8. Dropdown 9. E-mail input 10. Heading 11. Hidden 12. HTML 13. Image Select 14. Image Swatches 15. Link 16. Number 17. Paragraph 18. Radio 19. Select 20. Textarea 21. Text input 22. Image upload 23. Formula Value ``` = = ### Definitions * **Field** – is used to get user’s input on the woocommerce product page. Custom Field can be used to calculate the price (is used in formula) * **Fieldset** – store manager can create the fieldset (set of custom product fields) which consists of different **Fields**. Fieldset must have at least one **Field** and the expression (formula) to calculate the product price * **Expression/Formula** – mathematical and/or logical expression using to calculate the woocommerce custom price. The expression can be single-line, conditional price addons (product addons). **Expression** is protected and calculated only server-side. * **Validation** – each **Field** has specific requirements to be met. Incorrect values make it impossible to calculate the woocommerce custom price and add the product to the cart. * **Global Parameters** – are numeric variables which can be used in formulas across all fieldsets. ### Formula/Expression Builder Use field’s values as variables to calculate product price. Drag&drop conditional statements. You can use product addons to add extra price to the product regular price. ### Price Add-Ons Use custom fields to make Product Addons. ### Display Fields Assign fields to products, categories or product tags. Include/exclude options. Mass assignment. ### Validation Each field has built-in validation tests on user input. You can define additional conditions. ### Protected Formula The price is calculated server-side only, so the Client can’t see exact expression. ### Advanced Customization Field HTML templates can be overloaded in your theme file. Each field has CSS class to set custom styles. ### Functions You can use basic math functions in the formula. Fields such as Multi-checkbox, Date Picker, Date Range Picker has additional functions to get sum, min, max value or get date, days between dates values as number. ### Global Parameters You can define numeric variable across all fieldsets. You can modify all prices by global parameters. ### Cart The customer can edit product options after adding to cart. ### Integration with ACF You can use `acf('field_name')` function to get ACF field value in custom price formula. ### Compatibility * multisite mode is supported * product shortcodes * translation * virtual and variable products are supported * product regular and sale prices are supported * product tags and attributes * use product attributes in formulas * ACF supported ### More Features * define unlimited fieldsets with unlimited fields * fields are displayed in product page, cart and order details, * **expression builder** * define single-line expression to calculate the price * define unlimited conditional expressions to calculate the price * attach fieldset to: all products/catgories/tags, selected products/categories/ tags * **supported variable products** * **supported multisite** * the plugin is translatable * every field has built-in validation tests * the product will be removed from user’s cart when shop manager updates the fieldset settings * **product shortcodes are supported** * **the formula is protected and will not be shown to the user** – the price is calculated only server-side * regular and sale price are supported * supported price filters * customizable HTML code of every field * HMTL template of every field can be overridden in a theme directory * static fields such as HTML, Heading, Paragraph, Hidden, Link, Attachment * math functions to use in the expression * additional functions for radio group, checkbox group (sum, max, min), range date picker (days between dated) * global parameters can be defined and used in formula * ability to edit product fields after from a cart Full documentation at: [www.wckalkulator.com](https://wckalkulator.com) ## Screenshots * [[ * [[ * [[ * [[ * [[ * [[ * [[ ## Reviews ![](https://secure.gravatar.com/avatar/ccdbb70977c6d12b1e1a3b6041a050835695083bb3ed11edfcac6817b2d30076? s=60&d=retro&r=g) ### 󠀁[Good add-on](https://wordpress.org/support/topic/good-add-on-18/)󠁿 [vappatunisia](https://profiles.wordpress.org/vappatunisia/) Siilto 18, 2025 Recommend this app to add another layer of products customizing. ![](https://secure.gravatar.com/avatar/c7b81cbc3414f86e5fb0a41b8a863129fd0fe3c73d34540e116891718ca88a7b? s=60&d=retro&r=g) ### 󠀁[Fantastic!](https://wordpress.org/support/topic/fantastic-3423/)󠁿 [windoo](https://profiles.wordpress.org/windoo/) Duujal 5, 2025 Great work, thanks so much, it provides so many options, keep up! ![](https://secure.gravatar.com/avatar/0f845ef7542bd7e72307fc33acfc604f64bef058a45019495a205727cd245c75? s=60&d=retro&r=g) ### 󠀁[no support or updates, website redirects to dangerous site](https://wordpress.org/support/topic/no-support-or-updates-so-cant-use/)󠁿 [french2webdesign](https://profiles.wordpress.org/french2webdesign/) Seeɗto 8, 2025 This plugin looks promising in the beginning. However I see the author does not answer any support requests the last year. He also does not update the plugin. So this means that this plugin is probably abandoned, and not futur-proof. If I get a proof-of-support, I change my rating to 5 stars and I will support the author. When I want to visit his website he mentioned for support, I get a Norton Anti-Virus warning for dangerous page redirect… ![](https://secure.gravatar.com/avatar/1c39d075b432581f88192d0f227a188e817b84aebae124b719fbf8378bf31f12? s=60&d=retro&r=g) ### 󠀁[No one give like this for free](https://wordpress.org/support/topic/no-one-give-like-this-for-free/)󠁿 [vinofolder](https://profiles.wordpress.org/vinofolder/) MBooy 21, 2025 I really thank you for this plugin; it has simplified the complicated products on my website. ![](https://secure.gravatar.com/avatar/fa4a33932d807d20d8b19bd36949fdf01e2162c90b5fb980ddcca82c0545417d? s=60&d=retro&r=g) ### 󠀁[Super product fields support!](https://wordpress.org/support/topic/super-product-fields-support/)󠁿 [anavrin79](https://profiles.wordpress.org/anavrin79/) MBooy 13, 2025 Super plugin! Does exactlly what the name says. Can add useful fields and add any price calculation. ![](https://secure.gravatar.com/avatar/d498530de4aa463df42fb077c066ab51e4b5879d5f9f52354d20b6ad4d38f9f3? s=60&d=retro&r=g) ### 󠀁[Excellent plugin](https://wordpress.org/support/topic/excellent-plugin-9235/)󠁿 [mpst](https://profiles.wordpress.org/mpst/) Morso 19, 2024 Excellent plugin, with great capabilities once you get to know it better [ Read all 46 reviews ](https://wordpress.org/support/plugin/wc-kalkulator/reviews/) ## Contributors & Developers “Product Fields, Addons and Price Calculator for WooCommerce” is open source software. The following people have contributed to this plugin. Contributors * [ Krzysztof Piątkowski ](https://profiles.wordpress.org/wckalkulator/) “Product Fields, Addons and Price Calculator for WooCommerce” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/wc-kalkulator/contributors) for their contributions. [Translate “Product Fields, Addons and Price Calculator for WooCommerce” into your language.](https://translate.wordpress.org/projects/wp-plugins/wc-kalkulator) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/wc-kalkulator/), check out the [SVN repository](https://plugins.svn.wordpress.org/wc-kalkulator/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/wc-kalkulator/) by [RSS](https://plugins.trac.wordpress.org/log/wc-kalkulator/?limit=100&mode=stop_on_copy&format=rss). ## Changelog 2022-09-27 v.1.6.1 – fixed issue with color picker 2022-09-26 v.1.6.0 – image file upload bug fixes – conditional visibility works with static fields (html, paragraph) – added support for {image:size} in HTML field’s content (for example: {={image:size}} MB) – display calculated product price in the cart widget (cart popup) – new parameter: product_is_on_sale to use in formula– added parameters to js dynamic formula in HTML field – added placeholder for select and dropdown fields – bug fixed: incorrect value of the image swatch in the cart v.1.5.5-1.5.7 – bug fixes 2022-08-21 v.1.5.4 – add option to show Price Block before or after “Add to cart” button – bug fixes 2022-08-16 v.1.5.2, v.1.5.3 – image upload bug fix – option to display text before or after field’s title 2022-08-11 v.1.5.0 – fieldset’s options (toggle default price blocks) – new field: formula value – make fields required: always/only if visible/not required – if the field is hidden, default value will be 0 – you can assign numeric value to the WC Product Attributes and use it in a formula – added ACF integration. You can use ACF field value in a formula – you can use custom JavaScript code – bug fixes 2022-07-23 v.1.4.6 – added is_selected() function – bug fixes in multi checkbox 2022-07-23 v.1.4.5 – conditional visibility support for multi checkbox 2022-07-23 v.1.4.4 – bug fixes 2022-07-23 v.1.4.3 – bug fixes 2022-07-22 v.1.4.1, 1.4.2 – bug fixes 2022-07-21 v.1.4.0 – new formula builder – apply filters on td elements in field’s templates – new assignment type: product attribute – more columns on fieldset table– toggle button to publish/unpublish fieldsets quickly – support for stock management and stock reduction multiplier – layouts feature – you can choose one or two column layout – conditional visibility (set rules to show/hide fields) – bug fixes 2022-07-11 v.1.3.3 – Bug fixed: str_replace on array – Bug fixed: missing numberposts argument on get_posts() 2022-07-07 v.1.3.2 – added support for array and json objects in global parameters 2022-07-06 v.1.3.1 – new variables to get product’s weight, width, height, length– new variable to determine if current visitor is logged in – upload path settings 2022-07-05 v 1.3.0 – new calculation mode – Price Add-ons – you can use formulas in HTML/Paragraph field, for example: {={field_a}*{field_b}/100} – Image upload field added – you can use file size parameter in expressions – cron jobs to keep uploaded files clean – strlen() function added to expressions – it returns text length – Settings page added – you can define custom product form selector, you can toggle error messages for admin/manager 2022-06-15 v.1.2.3 * issue with ajax form serialization has been fixed 2022-06-14 v.1.2.2 * add notices 2022-06-13 v.1.2.1 * fixed issue with price calculation 2022-06-13 v.1.2.0 * New fields: image select, image swatches, color swatches, checkbox group (multicheckbox), HTML, Heading, Paragraph, Hidden, Link, Attachment * Math functions to use in the expression * Additional functions for radio group, checkbox group (sum, max, min), range date picker (days between dated) * Global parameters can be defined and used in formula * Assign fieldset to product’s tags * Customer can edit cart item * text field has new option: pattern (regexp) * bug fixes 2022-06-03 v.1.1.3 * bug fixes on ajax calls 2022-05-08 v.1.1.2 * Added new fields: email, radio * fixed field builder (js script issue) * fixed typo in HTML code for dropdown and select fields 2022-04-20 v.1.1.1 * Bug fix 2022-02-18 v.1.1.0 * custom fields (fieldset) post type * assign the fieldset to products/categories on the fieldset\’s edit page * added a price option to all fields * new edit page * added the priority option to fieldsets * field’s template can be overrided in your theme folder * performance fixes * bug fixes 2022-01-20 v.1.0.0 * Initial release ## Meta * Version **1.6.1** * Last updated **2 years ago** * Active installations **1,000+** * WordPress version ** 5.0 or higher ** * Tested up to **6.5.8** * PHP version ** 5.6 or higher ** * Languages * [English (US)](https://wordpress.org/plugins/wc-kalkulator/) and [Russian](https://ru.wordpress.org/plugins/wc-kalkulator/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/wc-kalkulator) * Tags * [woocommerce custom fields](https://fuc.wordpress.org/plugins/tags/woocommerce-custom-fields/) [woocommerce custom price field](https://fuc.wordpress.org/plugins/tags/woocommerce-custom-price-field/) [WooCommerce product fields](https://fuc.wordpress.org/plugins/tags/woocommerce-product-fields/) * [Advanced View](https://fuc.wordpress.org/plugins/wc-kalkulator/advanced/) ## Ratings 4.9 out of 5 stars. * [ 44 5-star reviews ](https://wordpress.org/support/plugin/wc-kalkulator/reviews/?filter=5) * [ 1 4-star review ](https://wordpress.org/support/plugin/wc-kalkulator/reviews/?filter=4) * [ 0 3-star reviews ](https://wordpress.org/support/plugin/wc-kalkulator/reviews/?filter=3) * [ 0 2-star reviews ](https://wordpress.org/support/plugin/wc-kalkulator/reviews/?filter=2) * [ 1 1-star review ](https://wordpress.org/support/plugin/wc-kalkulator/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/wc-kalkulator/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/wc-kalkulator/reviews/) ## Contributors * [ Krzysztof Piątkowski ](https://profiles.wordpress.org/wckalkulator/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/wc-kalkulator/) ## Donate Would you like to support the advancement of this plugin? [ Donate to this plugin ](https://www.paypal.com/donate/?hosted_button_id=5DNZK72H5YCBY)