
Why Your Email Campaign ‘Improved’ (But Actually Got Worse)
Your email metrics went up—but performance went down. Here’s how misleading data tricks marketers into making worse decisions.
Turn your email campaign data into clear, professional reports your team and stakeholders actually understand.
1 day a week or more was dedicated to running email marketing campaign reports.
Exporting CSVs
Copy-pasting numbers into spreadsheets
Manually building slide decks for every campaign
Explaining what CTR even means to your boss
Email Report requests from your team at 4pm on a Friday
No spreadsheets. No manual work. Just clean, shareable reports.
Link 56+ platforms (Klaviyo, Mailchimp, HubSpot) or just paste your numbers manually.
Automatic calculations, visual charts, AI analysis, and industry benchmarks appear in seconds.
Download as PDF, PowerPoint, Word, Excel—or just send the link. Your choice.
Practical email marketing campaign tips you can put into action.
Acoustic
ActiveCampaign
ActiveTrail
Adobe Campaign
Amazon SES
AWeber
Benchmark
Brevo
Campaign Monitor
Constant Contact
ConvertKit
Customer.io
Drip
Eloqua
GetResponse
Acoustic
ActiveCampaign
ActiveTrail
Adobe Campaign
Amazon SES
AWeber
Benchmark
Brevo
Campaign Monitor
Constant Contact
ConvertKit
Customer.io
Drip
Eloqua
GetResponse
Everything you need to know about Email Calculator
Email Calculator is a campaign analytics platform that helps marketers measure and optimize email performance.
Enter campaign data manually or connect 56+ platforms. The platform syncs metrics from your email, ROI, and lead sources, then calculates key KPIs in real time — open rate, click rate, CTOR, bounce rate, ROI, and conversion rate — alongside visual analytics and actionable recommendations.
Email Calculator offers three plans:
Free — £0
Pro — £12/month or £96/year (33% saving)
Agency — £39/month or £312/year
Everything in Pro, plus:
Yes. Start with the Free plan (up to 3 reports total) to test the platform with manual data entry, AI features, Campaign Story, Compare, and chart customization. Upgrade to Pro anytime when you need unlimited reports, API integrations, exports, and scheduled reporting. Your existing reports carry over automatically. No credit card required to start.
Email Calculator connects to 56+ platforms across three categories:
Email Platforms
Mailchimp, Klaviyo, HubSpot, Brevo, ActiveCampaign, SendGrid, Mailgun, Campaign Monitor, Constant Contact, GetResponse, ConvertKit, AWeber, Moosend, Customer.io, Elastic Email, and more.
ROI Platforms
Shopify, WooCommerce, Stripe, PayPal, Square, Gumroad, Paddle, and more payment processors and e-commerce platforms.
Lead Platforms
Typeform, Google Forms, Jotform, Tally, Unbounce, Webflow Forms, Sitecore, Calendly, and more lead capture tools.
Visit the Platforms page to see all supported integrations.
No, API keys are optional. The Free plan works entirely with manual data entry — no keys needed.
API integrations are a Pro feature. Add your platform API keys in settings to enable automatic data syncing, so you don't need to manually enter metrics for each campaign. You choose what to connect and can disconnect at any time.
"Was skeptical at first but connecting Klaviyo actually took like 2 minutes. Now I can see revenue per campaign without opening 3 tabs. Still learning some features but the basics work great."
"My CEO keeps asking for 'just one more metric' on reports. This lets me add whatever without rebuilding everything. The AI summary thing is hit or miss but when it works it's pretty good."
"Set up automated Monday reports and honestly forgot about them for weeks. Showed up in my inbox every week like clockwork. Way better than my old Excel nightmare."
"Running 8 clients on here. The workspace thing is clutch - no more accidentally sending Client A's data to Client B. Happened once before, never again. Worth it just for that."
"The segment breakdown thing is pretty useful. Can see which audience groups actually open stuff vs who just ignores everything. Helps me not waste time on dead segments."
"The custom logo on exports makes me look way more professional than I am. Clients think I have a whole design team. Takes 30 seconds to add their logo, boom, branded report."
"Campaign comparison finally works the way I think. Put two campaigns next to each other, see what's different. Turns out Tuesday 10am beats Thursday 2pm for us by like 40%. Who knew."
Email marketing strategy, campaign benchmarks, metrics guides, and reporting best practices — written for marketers who want better results.

Your email metrics went up—but performance went down. Here’s how misleading data tricks marketers into making worse decisions.

Most marketers focus on individual email campaigns. But real performance doesn’t come from campaigns—it comes from the system behind them.

Most teams are still stuck with slow, manual email reporting. Here’s how smart teams turn campaign data into clear, shareable reports in minutes.