Calculators

Calculators for mechanics

The answer first, on the page, without an email address and without a sales call.

These are working calculators rather than articles with a form bolted on. You put your numbers in, you get the number out, and nothing asks who you are before it will tell you. If a calculator here ever puts the result behind an email box, that is a bug and it should be reported as one.

They exist because the numbers a mechanic sets in the first year tend to get set once, quietly, by copying whatever the last shop charged, and then never revisited. A labor rate that was fine when you had no van payment is not fine two years later, and the arithmetic that shows it is not complicated. It is just arithmetic nobody sits down to do.

Each calculator shows its formula on the page, so you can check the maths rather than trust the box, and each one says what it is assuming. A calculator that hides its assumptions is a calculator that will be confidently wrong about your business.

The calculators

Each one answers a single question and shows its working.

5 pages

What these numbers are and are not

Every default in these calculators is a starting point, not an industry benchmark. This site holds no rate survey, no panel of shops and no licensed data set, so nothing here is presented as a national average and no calculator will tell you what other mechanics charge.

What they will do is turn your own numbers into the number you were guessing at. If you know what your van, your insurance, your tools and your unbillable hours cost, the rate that covers them is arithmetic, and the arithmetic is on the page.

The result is yours. Nothing is stored, nothing is emailed to anybody, and the calculation runs where you are looking at it rather than on a server that keeps a copy.

The rule these pages are built to

The answer renders in the page itself, not only in a script. Turn JavaScript off and the explanation, the formula and a worked example are all still there. That matters for the obvious search reason and for the less obvious one: a page that is blank without scripts is a page a person on a bad connection in a car park never sees.

No email wall, no account, no "unlock your results". There is nothing to unlock. If you want the thing that turns those numbers into estimates and invoices, that is Fixty and it is a separate decision you can make later.

And no fake precision. Where a number depends on something we cannot know, such as how many hours a week you actually bill, the calculator asks you rather than assuming a figure and quietly building your pricing on it.

What is on the site today

Fixty is a CRM for one mobile mechanic. Estimates a customer approves by text, photo inspections, scheduling and card payments, all from a phone.