Every calculator here can be embedded in someone else's website with one line of HTML. It costs nothing, there is no sign-up, and the only condition is that you keep the credit link the calculator already shows.
If you write for contractors, run a trade association page or teach this stuff, that is exactly who it is for.
01
Open any calculator in the list below and look for “Put this calculator on your own site” under it.
02
One iframe, plus a short script that keeps the frame the same height as the calculator. The iframe on its own is enough if your site builder strips scripts.
03
Anywhere that takes raw HTML — a WordPress custom HTML block, a Squarespace code block, a plain template. It sizes itself to the column you put it in.
All of them. There is no longer version of this page.
No account, no key, no limit on page views. Paste the code and it works. We do not invoice for this and there is no tier where it starts costing money.
Every calculator shows one line at the bottom crediting JobPanel and linking to the full version. That link is the entire price of the embed. Do not hide it with CSS, overlay it, or strip it out of the frame — if it goes, so does your permission to use the embed.
Use the iframe as it is served. You are welcome to put your own heading above it and your own words around it, but the calculator itself, its math and its wording are not yours to edit.
We fix and improve these calculators, so what is inside the frame may change without notice. If we ever retire one, the page it lives on will say so rather than breaking silently. We can also withdraw permission from a particular site, which we would only do over the two points above.
The embed loads no analytics, no advertising tag and no cookie. Nothing anyone types into the calculator is sent anywhere — the arithmetic happens in their browser and we never see it. That means it carries no consent obligation of its own onto your page.
These work out arithmetic from numbers your reader types in. They are not tax, legal or accounting advice, and they do not know your reader's state, trade or circumstances. We cannot be liable for a decision someone makes from one, and the same goes for you hosting it.
These terms cover the embed only. Using JobPanel itself is covered by the terms of service. Questions, or want to do something not described here? Write to getjobpanel@gmail.com.
The calculators. The document builders — the invoice, estimate and work order makers — are not embeddable: they are heavier, and they work far better on their own page than inside a narrow column.
Hourly rate calculator
What you have to charge to actually take home what you want
Job profit calculator
What a job actually made once labor and materials come out
Markup vs margin
The difference that quietly costs small shops money
Break-even calculator
How many jobs a month before you are past zero
Overhead recovery
How much overhead each billable hour has to carry
Sales tax calculator
Add tax, or pull the tax out of a total
Labor burden calculator
What an employee really costs per hour
Material markup
What to charge for parts you supply
Card fee calculator
What you keep after processing, or what to charge to net a figure
Time card calculator
A week of clock-ins into hours and gross pay
Mileage calculator
Miles driven into a dollar figure
Square footage & materials
Area, waste allowance, and how many boxes to order