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Marketing & SEO tools

Advertising, SEO, social and conversion calculators — what a click can cost and still pay back, whether a campaign cleared its acquisition cost, how a title will be cut in the results page. Pair a cost metric with a revenue one; a falling cost per click means nothing on its own.

Advertising (19)

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Ad Cost Calculator (CPM, CPC, CPA, CTR)Turn ad spend, impressions, clicks and conversions into CPM, CPC, CPA and CTR.ARPU calculatorCompute the average revenue per user from total revenue and number of users.Average order value (AOV) calculatorCompute your average order value from total revenue and number of orders.Cart abandonment rate calculatorCompute your shopping cart abandonment rate from carts created and completed.Cost per lead (CPL) calculatorCompute the cost per lead of a campaign from its spend and the leads generated.CPC calculatorCompute the cost per click (CPC) of an ad campaign from cost and clicks.

SEO (7)

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Meta tags generatorGenerate SEO and Open Graph meta tags for your pages.Slug generatorTurn any title into a clean, URL-friendly slug.UTM builderBuild tracked campaign URLs with utm_source, medium and campaign.Hreflang Tag GeneratorGenerate rel=alternate hreflang link tags for multilingual sites, with presets and URL auto-fill.Keyword Density CheckerPaste text to see word counts and the most frequent 1, 2 and 3-word phrases with their density.Robots.txt generatorBuild a correct robots.txt file from structured fields: the crawler to target, the paths to allow and disallow, one or more sitemaps (relative paths are made absolute), and optional crawl-delay and host lines. It manages how search engines crawl your site — remember it is a crawl directive, not a security barrier.

Social media (25)

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Carousel makerTurn lines of text into 1080px carousel slides: square, portrait or story.Social post previewPreview how your caption is truncated on Instagram, LinkedIn and X.Social image resizerResize an image to Instagram, X, LinkedIn and more presets.Engagement rate calculatorCompute your social media engagement rate from interactions and followers.Facebook Earnings CalculatorEstimate Facebook creator earnings from your views, country, niche and content type.Facebook Engagement Rate CalculatorCalculate your Facebook engagement rate and compare it to platform benchmarks.

Email (6)

Email signatureCreate a clean email signature with a live preview.Email templateBuild a simple HTML email with a live preview.Click-to-open rate (CTOR) calculatorCompute the email click-to-open rate from unique clicks and unique opens.Email list growth rate calculatorCompute the net growth rate of your email list from new subscribers and unsubscribes.Email marketing ROI calculatorWalk a campaign from emails sent through delivery, opens, clicks and orders to revenue, then to margin, ROI and ROAS. Each rate stacks on the previous step, so you see exactly where the funnel leaks — plus revenue per email, cost per order and the break-even conversion rate.Email open rate calculatorCompute the open rate of an email campaign from opens and delivered emails.

Conversion & analytics (5)

A/B Test Sample Size CalculatorCompute the sample size and test duration needed for a statistically valid A/B test.Bounce rate calculatorCompute your website's bounce rate from single-page sessions and total sessions.Conversion rate calculatorCompute your conversion rate from visitors and conversions.CTR calculatorCompute the click-through rate (CTR) from clicks and impressions.Funnel conversion calculator (multi-step)Name and count every stage of a funnel and get the pass-through rate of each step, its share of everyone who entered, the overall rate, the weakest step, the step that loses the most people — two different questions — and what lifting the weak one would be worth.