How do I calculate average order value?

Divide total revenue by the total number of orders over the same period. $48,000 across 600 orders is an AOV of $80.

Why does AOV matter for ads?

Because it sets how much you can afford to pay per customer. Gross profit per order is your break-even CPA, and gross profit is AOV multiplied by margin. Raise AOV and every campaign gets more headroom.

AOV calculator: average order value and the CPA it buys

Total revenue$Number of ordersGross margin%

Average order value$80

Gross profit per order$36

Maximum CPA at break-even$36

AOV = Revenue ÷ Orders · Gross profit per order = AOV × Gross margin

In short

Average order value is total revenue divided by number of orders. $48,000 across 600 orders is an AOV of $80. AOV matters for advertising because it sets your CPA ceiling: raising AOV raises the amount you can afford to pay for a customer, which is often easier than making ads cheaper.

Raising AOV is usually easier than lowering CPA

Cutting CPA means beating an auction that thousands of other advertisers are also trying to beat. Raising AOV means changing your own bundle, your own upsell, or your own free-shipping threshold. One of those you control completely.

The maths is direct. At a 45% margin, an $80 AOV gives you $36 of gross profit and so a $36 CPA ceiling. Push AOV to $100 and the ceiling moves to $45. You just gave yourself a 25% higher bid without improving a single ad.

Frequently asked questions

How do I calculate average order value?: Divide total revenue by the total number of orders over the same period. $48,000 across 600 orders is an AOV of $80.
Why does AOV matter for ads?: Because it sets how much you can afford to pay per customer. Gross profit per order is your break-even CPA, and gross profit is AOV multiplied by margin. Raise AOV and every campaign gets more headroom.

Other free tools

ROAS calculatorFree ROAS calculator. Enter ad spend and revenue to get return on ad spend, plus the break-even ROAS your margin actually requires.Break-even ROAS calculatorFree break-even ROAS calculator. Enter your gross margin to find the exact return on ad spend you need before a campaign makes any profit.CPA calculatorFree CPA calculator. Enter spend, clicks and conversions to get cost per acquisition, cost per click and conversion rate in one place.Engagement rate calculatorFree engagement rate calculator. Enter engagements plus reach, impressions or followers to get all three engagement rates at once.

Stop calculating this by hand

Muze reads these numbers straight out of your Meta, Google, Amazon and Shopify accounts and tells you which campaigns are below break-even. Ask it from ChatGPT or Claude. Every change previews before it runs.

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