Free shop revenue calculator

Auto repair shop revenue calculator car count × ARO

Multiply car count by average repair order and working days to see monthly and yearly revenue, then test what one more car a day, a bigger ticket or opening Saturdays would add.

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What if

ARO is total sales divided by the number of repair orders, so use the same definition (with or without tax and fees) for both numbers.

Monthly revenue-
-

Gross profit a month-
Cars a month-
What if+ a month+ a year+ GP a year

In short

Shop revenue is car count times average repair order (ARO) times the days you're open. 12 cars a day at a $450 ARO over 22 working days is $118,800 a month, about $1.43 million a year. One more car a day adds $9,900 a month; $25 more on each ticket adds $6,600. Multiply by gross profit percent for gross profit.

How it works

How to use the Auto Repair Shop Revenue Calculator

1

Enter car count and ARO

Repair orders per day and your average repair order (total sales ÷ repair orders).

2

Set working days

Days open in a typical month, and your gross profit % if you want GP too.

3

Try the what-ifs

One more car a day, a higher ARO, or Saturdays, each in dollars a month and a year.

What it does

What the auto repair shop revenue calculator works out

Monthly and yearly revenue

Car count × ARO × working days, then × 12.

Gross profit

Add your GP% to turn revenue into gross profit.

Three what-ifs

More cars a day, a higher ARO, and an extra Saturday each week.

Plain assumptions

New work is assumed to sell at today's ARO and GP%.

Private

Runs in your browser. Nothing is uploaded.

Revenue
cars per day × ARO × working days a month
ARO
total sales ÷ number of repair orders
Saturdays
Saturday cars × ARO × 52 ÷ 12 weeks a month
Yearly
monthly × 12; an estimate, not a forecast
FAQ

Questions about the auto repair shop revenue calculator

How do I calculate my shop's revenue?
Multiply the repair orders you write per day by your average repair order and by the days you're open in a month. 12 cars × $450 × 22 days = $118,800 a month.
What is average repair order (ARO)?
Total sales divided by the number of repair orders in the same period. Decide whether you count tax and fees, and stick to it, so month-to-month numbers compare.
Is it easier to raise car count or ARO?
It depends on the shop. More cars needs more bay and tech time; a higher ARO usually comes from thorough inspections, clear estimates and following up on declined work. Try both in the what-ifs.
How much would one more car a day add?
Your ARO times your working days: at $450 and 22 days, $9,900 a month or $118,800 a year, if you have the bay and technician time to do the work.
Is this a forecast?
No. It's arithmetic on the numbers you enter. Real months vary with season, staffing and the mix of work.
Sources

Where the formulas and rules come from

Checked October 2026. Results are estimates; check them against your own records before you rely on them.

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