You will get a Сalculator built into your website
Top Rated
Top Rated
Project details
I specialize in creating web calculators. I have already created more than 100 web calculators of varying complexity and all my clients have been satisfied.
I can create a calculator and embed it on your website (WordPress, Webflow, Shopify, Wix, OpenCart, Kartra, etc.)
The calculator can have tables, formulas, sliders, etc.
I will take into account all your wishes for design!
I can create a calculator and embed it on your website (WordPress, Webflow, Shopify, Wix, OpenCart, Kartra, etc.)
The calculator can have tables, formulas, sliders, etc.
I will take into account all your wishes for design!
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
PSD to HTML, DesignWhat's included
| Service Tiers |
Starter
$99
|
Standard
$199
|
Advanced
$399
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 5 days |
Number of Revisions | 4 | 5 | 6 |
Number of Pages | 1 | 1 | 0 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
98 reviews
(97)
(1)
(0)
(0)
(0)
FK
Filip K.
Oct 9, 2023
Kostiantyn is awesome and we loved the calculator he built for us. He is always on time, responding on messages and very easy to work with. Thank you Kostiantyn.
PB
Philipp B.
May 28, 2026
Create Calculator via my google sheet and design screening.
Highly recommended
LR
Lizzie R.
Mar 19, 2026
Calconic Calculator Development with Email Summary Option
Great experience start to finish. Kostiantyn understood the brief quickly, turned work around fast, and was available for edits until everything was right. We've now completed two projects together and are moving into a third. Highly recommend
SM
Steve M.
Feb 24, 2026
Changes to the PDF report of the Web calculator
Excellent work as always
RC
Ryan C.
Jan 6, 2026
Developer needed for financial calculator
LR
Luke R.
Jan 3, 2026
Franchising Calculator Development for Website
Great developer and did exactly as was asked to a high skill. Highly recommended.
About Kostiantyn
Full Stack Web Developer
100%
Job Success
Ternivka, Ukraine - 7:55 pm local time
I specialize in building custom web calculators, forms, and interactive web applications that help businesses generate leads, automate calculations, and improve user engagement.
I have worked on a wide range of projects, from simple calculators to complex logic-based tools with API integrations, dynamic data processing, and CRM connections.
What I can do for you:
Build custom web calculators (finance, pricing, ROI, etc.)
Create multi-step forms and quizzes with logic
Integrate calculators with APIs, Google Sheets, or CRMs
Embed solutions into any website
Optimize performance and user experience
Tech stack:
JavaScript, jQuery
PHP, MySQL
HTML5, CSS3
AJAX
WordPress, OpenCart
Yii2
I focus on clean, reliable solutions and clear communication. Most of my projects are delivered as ready-to-use tools that can be easily integrated into your website.
Steps for completing your project
After purchasing the project, send requirements so Kostiantyn can start the project.
Delivery time starts when Kostiantyn receives requirements from you.
Kostiantyn works on your project following the steps below.
Revisions may occur after the delivery date.
Checking the calculator on my server.
When the calculator is ready, I will send you a link where you can test it.
Making edits if necessary