Free marketing tools
Calculators, character counters, image resizers and ad previews built by the Digital Jockey team. Free, no sign-up, and they run right in your browser.
Calculators
ROAS Calculator
Calculate ROAS from ad revenue and spend as a multiplier and a percentage.
Break-even ROAS Calculator
Enter your margin after all variable costs to find the lowest ROAS at which your ads pay for themselves.
Target ROAS Calculator
Calculate target and break-even ROAS from your gross margin and profit goal.
CPM Calculator
Calculate CPM, ad spend or impressions from the other two values.
CPC Calculator
Divide ad spend by clicks to find your average cost per click, in the currency you choose.
CTR Calculator
Calculate CTR from clicks and impressions, with clear checks for zero impressions and swapped counts.
CPA Calculator
Calculate CPA (cost per acquisition) from ad spend and conversions.
Break-even CPA Calculator
Find your break-even CPA: the most you can pay in ads for one order before the sale loses money.
CPL Calculator
Divide ad spend by leads to see your cost per lead (CPL) for any campaign.
CPV Calculator
Calculate cost per view (CPV) and cost per 1,000 views for video ads from your ad spend and views.
CPI Calculator
Divide app ad spend by attributed installs to find your CPI (cost per install).
CAC Calculator
Calculate customer acquisition cost (CAC) from total sales and marketing costs or a cost breakdown.
LTV Calculator
Estimate customer lifetime value (LTV) as gross profit from repeat orders or monthly subscriptions.
LTV:CAC Ratio Calculator
Calculate your LTV:CAC ratio to compare lifetime gross profit per customer with acquisition cost.
CAC Payback Calculator
Calculate how many months of gross profit it takes to earn back CAC, with an optional churn check.
MER Calculator
Divide total revenue by total ad spend across every channel to calculate your marketing efficiency ratio (MER).
Marketing ROI Calculator
Calculate marketing ROI and net gain or loss from campaign cost and gross profit, or revenue and margin.
Ad Budget Calculator
Work back from a revenue goal to the orders, clicks and ad spend you need using AOV, conversion rate and CPC.
Conversion Rate Calculator
Calculate conversion rate from conversions and visitors.
AOV Calculator
Divide revenue by orders to find your average order value (AOV).
Ad Profit Calculator
Work out profit after ad spend from orders, order value and gross margin, so a good ROAS does not hide a loss.
Ad Frequency Calculator
Divide impressions by reach to see your ad frequency: how many times, on average, each person saw your ad.
Engagement Rate Calculator
Work out engagement rate as engagements ÷ impressions or ÷ followers, with the formula and worked examples.
Ad Revenue Forecast Calculator
Forecast ad revenue, clicks, orders and ROAS from ad spend, CPC, conversion rate and average order value.
A/B Test Significance Calculator
Compare visitors and conversions for A and B to get the p-value, lift and whether the A/B test result is significant.
Aspect Ratio Calculator
Enter any two of width, height and aspect ratio to get the third, such as 1920 × 1080 to 16:9.
Character counters
Google Ads Character Counter
Check Google Ads headlines, descriptions and display paths against 30, 90 and 15-character limits.
Instagram Caption Character Counter
Count Instagram caption characters and hashtags against the 2,200-character limit, including emoji and line breaks.
LinkedIn Ad Character Counter
Count LinkedIn ad intro text, headlines and descriptions against the recommended lengths, with emoji counted correctly.
TikTok Ad Character Counter
Check TikTok ad text and display name lengths before uploading your campaign.
X Post Character Counter
Check a standard X post against 280 weighted characters, where links count 23 and emoji count 2.
YouTube Title Character Counter
Check your YouTube title against the 100-character limit and your description against 5,000 characters.
Pinterest Pin Character Counter
Count Pinterest Pin title, description and text box characters against the 100, 800 and 250 limits.
Image tools
Facebook Ad Image Resizer
Resize one photo into Facebook ad images at Meta's 1:1, 4:5, 1.91:1 and 9:16 ratios and keep your product in frame.
Instagram Post Resizer
Resize your Instagram post to a 1080 × 1080 square or 1080 × 1350 portrait, cropped or with the whole photo kept.
Instagram Story Resizer
Crop or fit a photo into a 9:16 Instagram Story image and keep your product in frame.
Instagram Reels Resizer
Resize a photo or video still into a 9:16 Instagram Reel cover and preview the square feed crop.
TikTok Ad Resizer
Resize an image for TikTok carousel ads to 1200×628, 640×640 and 720×1280 as JPG or PNG.
LinkedIn Ad Image Resizer
Resize images for all 5 LinkedIn ad sizes, save JPG or PNG files and check the 5 MB limit.
Pinterest Pin Resizer
Resize any photo or graphic to a 1000 × 1500 Pinterest Pin, cropped to fill or fitted whole, and download a JPG or PNG.
Google Display Ad Resizer
Turn one image into all 20 Google Display ad sizes, compressed for the 150 KB limit, in one zip.
YouTube Thumbnail Resizer
Resize an image to YouTube thumbnail size: 16:9, up to 3840 × 2160, at least 640 px wide, as JPG or PNG within 2 MB.
X Image Resizer
Resize images for X (Twitter) website cards at 1200 × 628 and 1200 × 1200 by cropping or fitting.
All-in-One Ad Resizer
Resize an ad image for social media and display banners with 40 editable presets in one place.
Instagram Safe Zone Checker
Review the space around text and logos in Instagram Stories and Reels so nothing gets covered.
TikTok Safe Zone Checker
Check a 9:16 TikTok ad still against a conservative safe-zone guide so text and logos stay clear of the interface.
Ad Image Compressor
Compress an ad image to Google Display's 150 KB limit, YouTube's 2 MB limit or your own target size.
Ad previews
TikTok Ad Mockup
Preview a TikTok in-feed ad with your image, display name, caption and button, and see where "See more" cuts the caption.
Pinterest Pin Mockup
Preview your Pinterest pin image and title, check them against Pinterest guidance and download a PNG mockup.
YouTube Ad Mockup
Preview a YouTube in-feed video ad with a 16:9 thumbnail, two 40-character headlines and two 35-character descriptions.
Google Search Ad Preview
Preview your Google search ad on mobile and desktop, check headline and description limits, and download a PNG.
Google Display Ad Mockup
Preview your Google display ad copy and image in 20 sizes, check cropping and text length, and download a PNG mockup.
Links & QR codes
Copy checkers
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