Glossary

Advertising metric definitions

Quick meanings, formulas, and use cases for the metrics used across AdProfitTools calculators.

ACoS

Advertising cost of sales: ad spend divided by revenue.

ad spend / revenue x 100 Use: Use it as the inverse view of ROAS, especially in marketplace ads. Common mistake: Do not compare ACoS with ROAS without converting one into the other. Related calculator

Ad impressions

The number of times an ad is served or counted as shown.

reported by ad platform Use: Use it as the denominator for CPM and eCPM. Common mistake: Do not mix ad impressions with pageviews. Related calculator

AOV

Average order value: revenue divided by orders.

revenue / orders Use: Use it when estimating how much click or conversion cost you can afford. Common mistake: Do not use AOV alone without margin. Related calculator

ARPU

Average revenue per user.

revenue / users Use: Use it for subscription, app, or audience monetization models. Common mistake: Do not compare ARPU periods with different active user definitions. Related calculator

Break-even ROAS

The minimum ROAS needed to cover contribution costs before profit.

selling price / contribution profit Use: Use it before scaling spend. Common mistake: Do not leave out shipping, fees, refunds, or fulfillment costs. Related calculator

CAC

Customer acquisition cost: the sales and marketing cost used to acquire one new paying customer.

total acquisition cost / new customers Use: Use it to compare acquisition efficiency with margin, payback, and lifetime value. Common mistake: Do not compare CAC values that include different cost categories. Related calculator

CPA

Cost per acquisition or conversion.

ad spend / conversions Use: Use it when the conversion count is the buying goal. Common mistake: Do not compare CPA without knowing conversion value. Related calculator

CPC

Cost per click.

cost / clicks Use: Use it when traffic cost is the decision metric. Common mistake: Do not treat low CPC as success without conversion quality. Related calculator

CPM

Cost per 1,000 impressions.

cost / impressions x 1,000 Use: Use it to compare reach-priced media. Common mistake: Do not treat the lowest CPM as best without checking CTR and ROAS. Related calculator

CTR

Click-through rate: clicks divided by impressions.

clicks / impressions x 100 Use: Use it to judge how often impressions turn into clicks. Common mistake: Do not use CTR as a universal quality score across channels. Related calculator

CVR

Conversion rate: conversions divided by clicks or sessions.

conversions / clicks x 100 Use: Use it to judge what happens after traffic arrives. Common mistake: Do not mix click-based CVR with session-based CVR. Related calculator

eCPM

Effective revenue per 1,000 ad impressions.

revenue / ad impressions x 1,000 Use: Use it to normalize ad revenue across placements. Common mistake: Do not report eCPM with pageviews as the denominator. Related calculator

Fill rate

The share of eligible ad requests that receive a paid ad.

filled impressions / eligible requests x 100 Use: Use it when estimating real publisher revenue. Common mistake: Do not assume high eCPM means high revenue if fill rate is low. Related calculator

MER

Marketing efficiency ratio: total revenue divided by total marketing spend.

total revenue / total marketing spend Use: Use it for blended business-level efficiency. Common mistake: Do not use MER to judge one channel without channel context. Related calculator

Page RPM

Revenue per 1,000 pageviews.

revenue / pageviews x 1,000 Use: Use it for publisher page-level monetization. Common mistake: Do not mix Page RPM with eCPM. Related calculator

Pageviews

The number of pages viewed on a website.

reported by analytics Use: Use it as the denominator for Page RPM and website revenue planning. Common mistake: Do not use sessions as pageviews unless you multiply by pages per session. Related calculator

ROAS

Return on ad spend: revenue divided by ad spend.

revenue / ad spend Use: Use it after campaign revenue is known. Common mistake: Do not call ROAS profit because it uses revenue. Related calculator

RPM

Revenue per mille, or revenue per 1,000 units such as pageviews or impressions.

revenue / units x 1,000 Use: Use it only after confirming the denominator. Common mistake: Do not use bare RPM without saying pageviews, impressions, sessions, or another unit. Related calculator