From everyday math and finance to business, marketing, and SEO — crunch the numbers and optimize your content with one growing suite of free, instant tools. No signup required.
Free everyday calculators for quick, accurate answers — no signup needed.
A simple online calculator for everyday addition, subtraction, and more.
Open calculatorFind percent of a number, percentage change, and more in one place.
Calculate nowWork out the sale price and exactly how much you save.
Calculate nowAdd or remove sales tax to find net, tax, and total amounts.
Calculate nowCalculate the tip, total, and split the bill between any number of people.
Calculate nowFind your Body Mass Index and healthy weight range, metric or imperial.
Calculate nowCalculate your exact age in years, months, and days.
Calculate nowEstimate monthly payments and total interest on any loan.
Calculate nowSee how your savings grow over time with compound interest.
Calculate nowFind the hours and minutes between any two times or dates.
Calculate nowConvert an hourly wage into weekly, monthly, and yearly pay.
Calculate nowTrigonometry, logarithms, powers, roots, and constants.
Open calculatorConvert length, weight, temperature, volume, speed, and more.
Convert nowAdd, subtract, multiply, and divide fractions with steps.
Calculate nowFind the mean, median, mode, and range of any numbers.
Calculate nowFull monthly payment with tax, insurance, and PMI.
Calculate nowCalculate your grade point average on the 4.0 scale.
Calculate nowEstimate daily calories (TDEE), BMR, and suggested macros.
Calculate nowEstimate earnings across different ad platforms and monetization methods.
Estimate your Google AdSense earnings based on page views, CTR, and CPC.
Calculate nowSee how much you could earn from YouTube based on views and CPM rates.
Calculate nowEstimate your Ezoic ad revenue using EPMV and monthly page views.
Calculate nowEstimate your Mediavine ad revenue based on sessions and RPM.
Calculate nowEstimate your Raptive (AdThrive) ad revenue from page views and RPM.
Calculate nowCalculate your cost per click for paid advertising campaigns.
Calculate nowCalculate cost per thousand impressions for your display ad campaigns.
Calculate nowCalculate revenue per mille from earnings and page views.
Calculate nowFind out the estimated value of any website based on key metrics.
Calculate nowCrunch the numbers behind pricing, campaigns, and growth.
Calculate return on investment for marketing and ad campaigns.
Calculate nowCalculate profit, margin, and markup from cost and price.
Calculate nowSee how many units you must sell before you turn a profit.
Calculate nowCalculate conversion rate and cost per conversion instantly.
Calculate nowCalculate social media engagement rate for any platform.
Calculate nowDetermine if your A/B test results are statistically significant.
Calculate nowCalculate how much to charge for sponsored posts based on followers and engagement.
Calculate nowOptimize your website and content for search engines.
Generate optimized meta tags for better search engine visibility.
Use toolAnalyze keyword usage in your content for optimal SEO.
Use toolCreate OG tags for better social media sharing previews.
Use toolGenerate a robots.txt file to control search engine crawlers.
Use toolCount words, characters, sentences, and reading time instantly.
Use toolPreview how your page will look in Google search results.
Use toolConvert titles into clean, SEO-friendly URL slugs instantly.
Use toolGenerate JSON-LD structured data for rich search results.
Use toolBuild UTM-tagged URLs to track marketing campaign performance.
Use toolGenerate placeholder text for web designs and mockups.
Use toolScore your content's readability and get keyword density recommendations.
Use toolPut numbers behind your SEO — estimate traffic, value it, and prove ROI.
Estimate organic clicks from a keyword's search volume and ranking position.
Calculate nowSee what your organic rankings are worth in equivalent ad spend.
Calculate nowFind when content pays for itself and its return over time.
Calculate nowCostZap provides a comprehensive suite of free tools designed for content creators, publishers, and webmasters. Whether you're estimating ad revenue, optimizing your SEO, or analyzing your content, our tools give you accurate, instant results.