Finalize the JS calculator

Hello 👋

What I offer:

1. I will implement a step-by-step calculator with a responsive design (correct operation on mobile and desktop).
2. All parameters (device power, simultaneity coefficients, packages) will be moved to a config file so you can easily change them without a programmer.
3. The result for the user will be presented in a convenient form: total power, recommended tariff, equipment package.
4. If needed, I will add a PDF report or send the result to the manager's email.
5. Technologies: JavaScript (pure or with React/Vue framework), responsive layout, possibility of integration into your website.
… 6. Estimated time: 7–10 days (depending on details).
7. I will clarify the cost after answering a few questions.

1. Where will the calculator be placed: a separate landing page or integration into an existing website? If there is a website — what CMS/platform?
2. What does the final result look like: just text with a recommendation or a formatted block with a commercial offer/link to equipment packages?
3. Is it necessary to store user data in a database/Excel, or is it enough to show the result on the screen?
4. Is multilingual support needed (Ukrainian/Russian/English)?
5. Is there already a ready design (Figma), or does it need to be created from scratch?

Budget — from $200–300 for basic functionality (step-by-step questions, calculations, package selection) to $400–600 with additional options (PDF report, email sending, integration into website/CRM).

I will be able to provide more accurate information after receiving answers to my questions regarding design, integration, and how to display the result.

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I reviewed the description of your project for a step-by-step electrical load calculator and fully understand the functionality you need:

Step-by-step input form (type of apartment, type of stove, appliances, operating mode, tariff/phase).

Database of devices with reference power values and simultaneity coefficients.

Automatic calculation of total load (kW) + reserve (15–20%).

Smart package recommendation (5.5 kW / 8.8 kW / 12 kW / 3-phase).
…
Recommended equipment set (panel, automation, cable cross-sections).

Example report for users.

My approach:

Create a clean and user-friendly interface (web calculator, mobile device-friendly).

Implement accurate calculation logic with editable coefficients (so it can be updated in the future).

Generate clear recommendation results with both numbers and ready-made equipment proposals.

Provide with complete documentation + testing.

Timelines and prices:

Development time: 5 days/weeks

Price: 10,000 UAH

Why me:

Extensive experience with React.js / Next.js / PHP — choose based on your stack.

Experience with engineering calculators and automation tools.

I can provide ongoing support and updates after launch.

I can start working immediately and deliver the first working prototype within 2 days. Looking forward to discussing the details. Feel free to contact me.

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Hello, I have already completed similar projects in JS.
I look forward to the details in private.
I will be happy to help you!

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Good night Mr. Arthur, your proposal regarding the improvement of the JS calculator is an interesting idea, and although I have no experience in developing such a thing, I am willing to implement it. If you need any enhancements, we can discuss it in this situation.

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Hello!
We are working on the development of software, websites, automation systems, and more.

We take on projects "from scratch" as well as technical refinements.
We work with a wide stack: WordPress, Opencart, Shopify, WIX, Python, JavaScript, C++, C#, Unity 3D, SQL, MSSQL, WPF, WinForms.

We have practical experience in:
– system and application programming
– business process automation
… – information security
– technical project management

After project delivery — we provide free technical support for 14 days.

We work quickly, clearly, and results-oriented.
We look forward to collaborating!

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Good day, I have extensive experience in js, ready to help with your task!

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Good day! Ready to discuss, write to me, I will start working immediately.

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Hello! I can fulfill your order. I have experience. Write to me and we will agree.

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Hello. I have extensive experience with JavaScript. I am ready to collaborate. Feel free to contact me.

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Good day.
I have experience and a desire to work.
I will complete it within the agreed deadlines.

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Hello, I read your project brief, I am ready to do everything in the shortest possible time!

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Hello, I can easily develop this calculator for you, I have written a similar one for calculating the cost of tiling in a bathroom.

I can implement it as a ready-made website or as a mini Telegram app, depending on who will be using it and on what platform.

I will make the design as simple and minimalist as possible; if you have a different vision, I am open to suggestions.

The price and timeline I provide are approximate; once we discuss your task in more detail, including where to get the variables, etc., I will provide an exact quote.

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I will refine your JS calculator so that it collects all the necessary data step by step (area, apartment plan, slab type, equipment set, concurrency mode, tariff/phase) and automatically calculates the total load with a reserve based on reference capacities. The result will be a clear calculation in kW and a ready recommendation for the optimal package (5.5 / 8.8 / 12 kW or 3-phase), including the selection of the panel, circuit breakers, and cable cross-sections. You will receive a convenient tool with an example of the final conclusion for the user.

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Good day!
I can create an electrical load calculator according to your specifications: step-by-step data entry, power calculation with a coincidence factor and margin, automatic selection of the package (5.5 / 8.8 / 12 kW or 3-phase), as well as output recommendations for the panel, automation, and cable.

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Hello. I am ready to do this project. The information in the technical specification is clearly incomplete, I would be happy to collaborate, write to me.

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Hello! I will complete your task quickly and efficiently.

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Write to me, I will start working today. I will be happy to collaborate with you!

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Hello!
An interesting project with an electrical load calculator 👌

I can implement a step-by-step calculator with all stages:

area, apartment plan, type of stove, set of appliances, number of air conditioners;

selection of simultaneity mode, tariff, phase;

… calculation of total load with coefficients and reserve;

automatic recommendation of the package (5.5 / 8.8 / 12 kW, 1 or 3 phases) and selection of equipment (panel, automation, cables).

Technically, I can do this as:

Frontend: React/Next.js, TypeScript, Tailwind (user-friendly and modern interface, mobile responsiveness).

Backend: Node.js/Express (calculation logic, database with equipment parameters, application storage).

Integration with email/CRM for sending ready results.

I can also add ready PDF reports with calculation results and equipment proposals.

I would be happy to discuss detailed requirements and make the calculator convenient and understandable for your clients.

Best regards,
Ruslan

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Hello. I can implement it from scratch on Angular. Plus, you will be able to add new features through a file. I will choose a custom design or you can provide a video of your company for the background.

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Good day! 👋
I am ready to complete the task, I have experience working with JS.
I would like to first review what is already available to more accurately assess the time and approach for implementation.

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Good day,
I am ready to develop and integrate a calculator on your website.

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Good day. I am interested in your order. I have been working in the web sphere since 2014. Write in private messages to discuss the details.

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