A calculator for your website: what does it cost?
A calculator for your website costs €290–890 as a one-time payment with us: a simple calculator €290, one with conditional logic €590–890. Prices include VAT 25.5%. Delivery runs from a few days to 7–14 working days, and the calculator is embedded into a site we did not build ourselves as readily as into one we did.
This page answers the price question directly, because most do not. On 8 September 2026 we checked the pages of two Finnish providers selling calculators: LeadiFix and Bautomo both sell calculators for websites, and neither publishes a price — both ask you to make contact for a quote.
How much does a website calculator cost?
The price depends on how many inputs the calculator has and whether the outcome branches.
| Type of calculator | Price | What it includes | Delivery |
|---|---|---|---|
| Simple calculator | €290 | Up to 4 inputs and one result | A few days |
| Advanced calculator | €590–890 | Conditional logic, several outcomes | 7–14 working days |
| Embedding into an existing site | Included | Any site, including one built by someone else | — |
| Documentation of the formula | Included | The formula in writing, handed to you | — |
All prices are one-time payments and include VAT 25.5%. An ordinary calculator carries no monthly fee: it computes in the visitor's browser and uses no paid API. The €19/month fee applies only to AI-powered features, where it covers API costs. Our other prices are on the add-on services page.
Price calculator, quote calculator, or just calculator?
Three names for one tool: a calculator on your site that gives a visitor an estimate from their own inputs. What differs is what happens once the estimate appears.
| Name | What it usually means |
|---|---|
| Price calculator | The visitor picks a service and sees the estimate right there on the page |
| Quote calculator | The same, but after the estimate it asks for contact details and the request reaches you |
| Calculator | The general term for both, and for tools that compute something other than price |
We build all three at the same price. The choice is commercial rather than technical: show the number openly, or trade it for contact details. An open price filters out enquiries that were never going to buy; an estimate given in exchange for details brings more leads, and more weak ones.
One confusion is worth clearing up here. A website price calculator usually means something else: a tool for working out what having a website built costs. We have one of those too, but it lives on a different page — estimate the price of your site. This page is about a calculator that goes on your site and runs on your prices.
Why is the price of a calculator usually not stated?
The reason is structural rather than unkind: a calculator is always custom, so it is easier for an agency to scope each case than to commit to a number in advance. The problem is that the buyer then has to request a quote just to find out whether the conversation is about three hundred euros or three thousand.
We solved it by splitting calculators into two size classes by inputs and logic. The line is rough, but it gives you an order of magnitude before you get in touch. If your case fits neither class, we say so directly.
When you ask anyone for a quote, ask these four things in the same form:
- Is documentation of the calculation formula included, and do I get the formula in writing?
- Does the calculator carry a monthly fee, and what does that fee consist of?
- Does it work on my current site, or does the site have to be rebuilt?
- Who owns the calculator's code after delivery?
Which kind of calculator suits a small business?
A calculator pays off when a customer hesitates to make contact because they have no sense of the order of magnitude. Three types cover practically every service business:
- Price calculator — the customer enters details and sees a price estimate. Suits cleaning companies, car workshops and the renovation trade.
- Floor-area calculator — the price follows from square metres. Cleaning in Hämeenlinna and floor installation in Tampere run on the same logic.
- Saving calculator — the customer sees what their current arrangement costs them. This fits when you sell something that replaces a recurring cost.
A fourth type is the payback calculator, where the customer sees how long an investment takes to pay for itself. One is in use on our own price calculator page: alongside the package price it works out an estimated payback period.
Does a calculator work on a site you did not build?
Yes. The calculator is a self-contained part, embedded into a page the same way a video or a map is. The site is not rebuilt, URLs do not change and search visibility is not interrupted. The platform is not a practical constraint: it works both on a page made with a website builder and on a custom-built site.
This is the whole idea behind the add-on services. If your site works and there is no reason to replace it, do not buy a package — buy the one part that is missing. The add-on services page applies the same logic to the quiz, the chatbot and the other components.
How do you know the calculator computes correctly?
The formula is documented and handed over in writing, so you can check every figure and correct it yourself later. This is not a formality: a calculator whose formula nobody remembers ages quietly and starts producing wrong numbers.
We apply the same practice to our own published calculators. selkoraha.fi is a service run from Riihimäki with 58 calculators covering salary, taxes, benefits and pensions in three languages. Each calculator marks its source — vero.fi, Kela or Migri — so the reader can verify the figure at its origin. The same holds for treffikone.fi, where the calculators and comparison tables are built on the same principle.
Three published sites where the calculators can be tried out:
| Site | What is there | Languages |
|---|---|---|
| selkoraha.fi | 58 calculators on salary, taxes, benefits and pensions, sources marked | 3 |
| profitsite.eu/en/calculator/ | Price and payback calculator, result as a PDF | 3 |
| treffikone.fi | Comparison calculators and a quiz | 3 |
A worked example: building a floor-area calculator
Take a cleaning company working around Riihimäki and Hyvinkää that gets the same question every week: "what does a move-out clean cost for a 68 m² flat?" Answering takes a few minutes each time, and some of the people asking never leave their contact details.
The logic here has four steps:
- Input 1: floor area. A slider or a field for square metres.
- Input 2: type of clean. Regular, deep or move-out — each with its own price per square metre.
- Input 3: extras. Windows, oven, fridge as fixed add-ons.
- Result. A price estimate as a range rather than a single figure, plus a note on the household tax deduction where it applies.
Four inputs and one result is exactly a €290 calculator. If the price also depends on the floor, the lift or the condition of the property, and there are several outcomes, that is conditional logic and the price lands between €590 and €890.
The single most important decision is commercial rather than technical: whether the result is shown as a range or as one number. A range is more honest and survives the fact that properties differ. One number converts better but leads to disputes when the real price differs from it. We recommend a range, with a visible note that this is an estimate.
Where on the site should the calculator go?
A calculator works badly at the bottom of the front page, where nobody scrolls. Three places where it produces enquiries:
- In the middle of a service page, right after the description of the service and before the contact details. The reader has just learned what you do and is wondering what it costs.
- On its own page, with its own URL and its own heading. Then the calculator can be found in search on its own — on this site that page is /en/calculator/.
- At the end of an article, if you write about pricing. The reader is already interested in the order of magnitude and does not have to go anywhere.
After the result there is always one next step: a form that sends the estimate by email, or direct contact. Without it the calculator serves the visitor but not you — they get their answer and leave.
What does a calculator not do?
Two limits worth knowing before you order.
A calculator does not give a binding quote. It gives an estimate, and it says so visibly next to the result. A binding price always needs a human check, and the calculator's job is to bring the customer into that conversation already warm.
We do not build accounting or tax calculators. There a wrong figure causes your customer real harm, and the question of liability is different from a price estimate. selkoraha.fi is the exception that proves the rule: it is our own publication, where every figure is marked to a source and the user is told it is an estimate.
How ordering a calculator works
The first step is free. You tell us what the calculator should work out, and you get a link to a working preview built with your own content — a calculator that computes with your prices, not with sample figures. You see it working and decide only then. We make 3–4 free previews a week.
If you take the calculator, we agree the final formula, embed it on your site and hand over the documented formula. Invoicing starts only once you have approved the implementation.
Want to see the calculator running on your own prices?
We build a free preview before you order: the calculator computes with your figures, and you decide only once you see it working. The preview costs nothing and commits you to nothing.
Frequently asked questions
How much does a calculator for a website cost in Finland?
With us a simple calculator costs €290 and one with conditional logic €590–890, as a one-time payment including VAT 25.5%. We do not state other Finnish providers' prices because we have not found them published: on 8 September 2026 we checked the calculator pages of both LeadiFix and Bautomo, and both ask you to get in touch for a quote.
What is the difference between a price calculator and a quote calculator?
In practice they are the same tool under two names. A price calculator shows the visitor the estimate directly on the page, while a quote calculator asks for contact details after the estimate and sends the request to you. Both cost the same 290–890 €, and the choice is commercial: an open price filters out enquiries that were never going to buy, whereas an estimate given in exchange for details brings more leads and more weak ones.
Can a calculator be added to a site you did not build?
Yes. The calculator is embedded into an existing site as it is, regardless of who built it or what platform it runs on. The site is not rebuilt and your URLs do not change.
How long does building a calculator take?
A simple calculator is typically ready in a few days and a more advanced one in 7–14 working days from the moment the formula is agreed. Most of that time goes into agreeing the formula, not into coding.
How do I know the calculator computes correctly?
The calculation formula is documented and handed over to you in writing, so you can check every figure yourself. We apply the same practice to our own published calculators: on selkoraha.fi, each of the 58 calculators shows the source of its figures — vero.fi, Kela or Migri.
Is the figure the calculator gives a binding quote?
No. The calculator gives an estimate and says so visibly to the user. We also do not build calculators for accounting or taxation, where a wrong figure causes your customer real harm.
Does a calculator come with a monthly fee?
An ordinary calculator does not. The monthly fee applies only to AI-powered features, where it covers API costs — a calculator runs in the visitor's browser and uses no paid API.