Free Meta ads calculators
Free calculators for brands that advertise on Meta: break-even ROAS, ROAS, CPM, CPC, CPA, CTR, LTV, MER, CAC and contribution margin, each with its formula. The math runs in your browser. We count visits, not the numbers you enter.
Profit and return
Whether the ads make money once every cost is paid.
1 ÷ marginBreak-even ROAS calculatorThe ROAS where an order stops losing money.revenue ÷ spendROAS calculatorReturn on ad spend, as a ratio.order − costs per orderContribution margin calculatorWhat one order keeps before ads.revenue ÷ total spendMarketing efficiency ratio (MER) calculatorEfficiency across every channel.order × margin × ordersCustomer lifetime value calculatorGross profit over a customer's life.
Costs and rates
What each impression, click and customer costs.
spend ÷ impressions × 1,000CPM calculatorThe price of 1,000 impressions.spend ÷ clicksCPC calculatorWhat one click costs.clicks ÷ impressions × 100CTR calculatorHow often people click.spend ÷ conversionsCost per acquisition (CPA) calculatorWhat each conversion costs.costs ÷ new customersCAC calculatorWhat a new customer costs to win.
Reference
Meta's ad sizes, ratios and limits, checked against its Ads Guide.
/meta-ad-specsMeta ad specsEvery placement in one table, with the 9:16 safe zone drawn to scale./meta-ad-specs/instagram-story-sizeInstagram story size1440 × 2560 at 9:16, the safe zone and how long a story plays./meta-ad-specs/facebook-ad-sizeFacebook ad sizeFeed, Stories, Reels, Marketplace and the right column, by pixel./meta-ad-specs/reels-ad-specsReels ad specs9:16 at 1440 × 2560, the Reels safe zone and the shorter text./meta-ad-specs/video-ad-specsFacebook video ad specsSizes, lengths and file settings for video in every placement./meta-ad-specs/character-limitsFacebook ad character limitsPrimary text, headline and description counts for every placement.
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