How to Calculate CPM
The CPM formula for paid media, with examples for impressions, campaign cost, CPC, CTR and cost per conversion.
en-AU
Australia Calculators
Use this page for calculators that fit common Australian planning needs, from home loans and savings to health, clothing sizes and renovation estimates.
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Recommended calculators
These tools cover common regional planning questions and show the assumptions that can change the result.
FinanceMortgageEstimate monthly mortgage payments, total interest and loan-to-value from property price, deposit, rate and term.FinanceSavings GoalWork out the monthly saving needed to reach a goal by a target date, including starting balance, interest and payment timing.HealthCaloriesEstimate daily maintenance calories using the Mifflin-St Jeor equation and an activity multiplier.BusinessConversion RateCalculate website, ecommerce, sales, retail or marketing conversion rate, plus target uplift and value per visitor.BusinessCPMCalculate CPM, cost per thousand impressions, CPC, CTR and cost per conversion for advertising campaigns.BusinessROASCalculate return on ad spend, gross profit after margin and break-even ROAS.
Guides
Helpful background before you calculate
Read the background, choose better inputs and compare scenarios with more confidence.
CPM, CPC and ROAS: Which Marketing Metric Matters?
How to read common paid marketing metrics together instead of judging campaigns from one number.
Payback Period for Small Business Investments
How to use payback period alongside ROI, cash runway and break-even before committing to a business expense.
Market notes
Use the local context, then check the specific rule
Some calculators are universal because the arithmetic is the same. Others depend on tax rules, lender terms or product charts, so the assumptions matter.
- General calculators can use Australian dollar amounts because the arithmetic is currency-neutral.
- Local taxes, rebates and lender rules are not applied unless a calculator states that they are included.
- Home and DIY estimates should be checked against product coverage and local supplier guidance.