Custom calculator development
from €290
A standalone calculator (tax, HR, business or ROI) that shows the result instantly. Optional PDF, email and CRM connection.
Services
Custom calculator development
We build a calculator into your website that instantly works out an estimated price, saving or tax amount from a few of your visitor's inputs – and can send the result as a PDF, by email or straight into your CRM. Custom calculators start from €290 and a full quote system from €390.
What you get
- Pricing and quote calculators: visitors see an estimate instantly, you receive a qualified lead
- Tax and payroll calculators, built to the rules of your country
- HR calculators: vacation days, notice period, severance, overtime
- ROI and finance calculators: ROI, cash flow, break-even, loan, lease vs. buy
- Optional PDF generation, automatic email and CRM connection
- Updates when regulations change (for example new tax rates)
Who it is for
- Every quote currently starts with manual calculation
- You are an accountant, HR provider or consultant who wants to give clients a useful tool
- You want visitors to try something on your site, not just read
Packages and starting prices
Quote / calculator system
from €390
Calculator and quote form in one: it works out the estimated price and sends it with the lead's details by email or into your CRM.
Multiple calculators
Custom quote
From 1 to 10+ calculators at a discounted bundle price.
Premium maintenance
~€29 / month / calculator
Regulatory updates, new fields and features. No commitment.
Prices are exempt from VAT under a small-business tax scheme; no VAT is charged. Prices marked “~” are indicative; the exact quote follows an individual assessment.
How it works
Calculation logic
We write down the formulas and rules, approved by you or your expert.
Interface
We design the input fields and how the result is shown.
Build and verify
We build it and check the math against test cases.
Install
We embed it in your website and set up PDF, email or CRM delivery.
Frequently asked questions
How accurate are the calculators?
We build the logic from the rules you provide and your approval, and verify it with test cases. For regulation-based calculators we document each formula with its source and recommend that an accountant or expert reviews it too.
Does the calculator store what visitors enter?
Not by default – the calculation runs in the visitor's browser. If you pass the result on as a lead, only the necessary data is sent, with the visitor's consent.
Which websites can it go on?
Any: WordPress, Wix, Shopify, Framer or custom code.
What happens when a tax rate or regulation changes?
We update it under the maintenance plan (~€29/month per calculator, no commitment) or for a one-off fee.
Let's talk about your case
A free 30-minute consultation on Google Meet, WhatsApp, phone or email. You leave with a concrete plan and a price estimate.