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What Is Average Repair Order (ARO)?

February 25, 2026 · 2 min read

Average repair order, almost always shortened to ARO, is the average dollar amount a customer spends per visit to your shop. It is one of the most useful numbers a shop owner can track, because it tells you how much revenue each car in your bay is actually generating.

How to calculate ARO

The math is simple:

ARO = total sales divided by number of repair orders

If you did $60,000 in sales last month across 400 repair orders, your ARO is $150. That is it. You can calculate it for any period: a day, a week, a month, or a year.

Why ARO matters

ARO is powerful because it is a lever you can pull without finding new customers. If you raise your ARO, you make more from the same car count and the same bays. For a shop that is already busy, lifting ARO is often easier than cramming in more cars.

It is also a health signal. A low ARO often means cars are leaving with work that should have been caught and recommended. A healthy ARO usually tracks with consistent inspections and clear estimates, because those surface the legitimate work a quick oil change would otherwise hide.

What is a good ARO?

There is no single right number. A general repair shop, a quick lube, and a transmission specialist will have very different AROs, and that is normal. The number that matters is your own trend over time. If your ARO is climbing while your customers stay happy and your reviews stay strong, you are doing it right. If it spikes while complaints rise, you may be pushing too hard.

How to improve ARO honestly

The right way to raise ARO is never pressure. It is visibility: inspect every car, show customers photos of real issues, and let them approve work on their own time. Done that way, a higher ARO means customers are getting more of the work their vehicle actually needs, which is good for them and for you.

In GreaseGoose, job and invoice tracking lets you see your ARO trend, while digital inspections and phone-based approvals make honest, visible recommendations part of the normal workflow.

FAQ

What does ARO mean in an auto shop?

ARO stands for average repair order, the average amount a customer spends per visit. It is calculated by dividing total sales by the number of repair orders over a period.

How do you calculate average repair order?

Divide total sales by the number of repair orders for the period. For example, $60,000 in sales across 400 repair orders is an ARO of $150.

What is a good average repair order?

There is no universal number, because it varies by shop type. Watch your own ARO trend instead. A rising ARO alongside happy customers and strong reviews is the healthy sign; a spike alongside rising complaints is a warning.

How can I increase my ARO?

Inspect every vehicle, show customers photos of real issues, and let them approve recommended work on their own time. This raises ARO honestly by surfacing legitimate work rather than pressuring customers.

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Written by the GreaseGoose team. GreaseGoose is a product of TomGoose LLC, built for independent auto repair shops.