Unkillable Tools / Calculator / Instant quote calculator for your website
Service businesses lose enquiries in the gap between "how much?" and a reply two days later. A quote calculator closes that gap to zero.
A working example for a cleaning business. Adjust it and the price follows.
Change the rates, the labels and the maths to match your business, then export it as a single HTML file you paste into your site. Free, no account, and it keeps working whatever happens to us.
Open the builderThe traditional order is backwards. Most service websites ask for the visitor's details and then promise a quote later, which asks the customer to take all the risk of the exchange. Reversing it — quote first, then offer to email it — converts better, because by the time you ask for an email address you have already given something worth having.
It also changes who contacts you. When people can see the number before they reach out, the ones who reach out have accepted the number. Your close rate on enquiries goes up even though the raw enquiry count may go down.
Start from a minimum call-out. Almost every service business has a floor below which a job isn't worth doing, and a calculator that quotes $18 for a tiny job is worse than no calculator. Use max(minimum, calculated) so the floor always holds.
Apply frequency discounts as multipliers rather than subtractions, so they scale with the job. A recurring customer is worth materially more than a one-off, and showing the discount explicitly nudges people toward the recurring option.
Put your rates in hidden fixed-rate fields rather than typing them into every formula. When your prices change you edit one number, not seven expressions.
With Pro, the calculator can show a short form under the result. When it's submitted you receive the visitor's contact details and a plain-text summary of every value they entered — the size of the property, the options they picked, the figure they were shown.
That submission goes to your inbox or to a form endpoint you already run. It never passes through us, and it cannot, because there is no code of ours running on your site to intercept it.
The Pro lead form can open the visitor's own email app with the quote pre-filled, addressed to you — so you both end up with a copy. Alternatively, point it at a form endpoint (Formspree, Basin, your own handler) and use that service's autoresponder.
Yes. Set minimum and maximum values on every input, and use max() to enforce a price floor. Inputs are clamped to their range before the formula runs.
Yes — every result can take a second formula, and it renders as "$900 – $1,100". For quote calculators this is usually the right choice.
Hosted calculator builders charge $5–$115 a month and stop rendering when you exceed your monthly impressions. This one exports a file that runs on your own site and cannot be switched off.
Build one free