About Us

Our Mission

Open-rate.com was built with a simple mission: to help businesses of all sizes measure, understand, and improve their email marketing ROI. We believe that email marketing remains one of the highest-ROI channels available, but too many businesses lack the tools to properly quantify their returns and identify cost-saving opportunities.

Our flagship Email Marketing ROI & Savings Calculator gives you real-time insights into your campaign performance, cost structure, and potential savings from switching email service providers.

Why We Built This

After working with dozens of small-to-medium businesses, we noticed a recurring pattern: most companies had no idea whether their email marketing was actually profitable. They knew their open rates and click rates, but couldn't connect those metrics to actual revenue or calculate the true cost of their email operations including labor, design, and tools. This lack of visibility made it impossible to make informed decisions about their email programs — whether to invest more, switch providers, or restructure their approach entirely.

At the same time, businesses were often overpaying for email service providers that didn't fit their needs. Switching ESPs could save them 30-50%, but without clear cost-benefit analysis showing exact dollar amounts, the switching friction felt too high. Most businesses stayed with expensive providers simply because they couldn't quantify the savings.

We built Open-rate.com to solve both problems in one place. Our calculators give you real-time visibility into your email marketing economics, helping you make data-driven decisions about your ESP, team structure, and optimization priorities. Whether you are a solo creator sending 5,000 emails a month or a marketing team managing 500,000+, our tools help you understand your numbers and identify the most impactful changes you can make to improve profitability.

Who This Is For

• E-commerce managers looking to optimize their email channel P&L
• SaaS marketers calculating lead generation ROI from email campaigns
• Small business owners who want to know if their email marketing spend is worth it
• Agency professionals who need to justify email program investments to clients
• Finance teams conducting vendor audits and cost reduction analyses

Our Values

Transparency

Our calculator formulas are clearly documented on our methodology page. Every industry benchmark is sourced from publicly available reports and cited with attribution. We have nothing to hide — if you want to know exactly how a number is calculated, you can verify it yourself.

Accessibility

All of our tools are completely free to use. No sign-up, no credit card, no email required. We believe that accurate email marketing analytics should be available to every business regardless of budget. Our calculators work instantly in your browser and we never store your data.

Independence

Our calculator results are purely mathematical and data-driven. Comparisons between ESPs are based on publicly available pricing and independently verified benchmarks. We do not accept payments from email service providers to alter rankings or recommendations. Any affiliate relationships we have are clearly disclosed and do not influence our comparison methodology.

Data Sources

Our industry benchmarks are drawn from multiple authoritative sources to ensure accuracy and reliability:

• Mailchimp's Email Marketing Benchmarks (2024-2025) — aggregated data from millions of campaigns
• Campaign Monitor's Email Marketing Statistics Report — industry-wide performance averages
• HubSpot's Marketing Industry Benchmarks — segmented by industry and business size
• DMA (Data & Marketing Association) Response Rate Report — annual direct marketing benchmarks
• Litmus Email Analytics — email client market share and rendering statistics
• GetResponse Email Marketing Benchmarks — global email performance data

For more details and additional data points, including detailed tables broken down by industry and ESP, see our Benchmarks & Data Sources page. We update our benchmarks annually as new reports are published. Our methodology page explains exactly how each calculator works, including the formulas used and how inputs are converted into revenue projections.

We also publish original analysis on email marketing trends, ESP comparisons, and optimization strategies in our blog. Our guides provide step-by-step tutorials for getting the most out of our calculators and applying the results to your business. Whether you are comparing Mailchimp vs Klaviyo for your e-commerce store or calculating the true ROI of your email marketing program, our content library covers the full spectrum of email marketing analytics and optimization.

What Makes Our Calculators Unique

Several key features differentiate our calculators from other free tools available online. First, our calculators update in real-time as you adjust any slider or input — there are no buttons to click or forms to submit. Second, our shareable URL feature encodes your settings in the web address, allowing you to bookmark your exact scenario or share it with colleagues. Third, we include the full cost picture including labor, design, tools, and opportunity costs that most calculators ignore. Fourth, our calculators are completely free with no sign-up required — just open the page and start calculating. Fifth, all our industry benchmarks are documented with sources and updated annually.

How to Get Started

Using Open-rate.com is straightforward — all tools work in your browser with no sign-up required and update results in real-time as you adjust your inputs. Start with the email marketing ROI calculator to understand your current profitability. Then explore our other tools based on your needs: the sponsorship calculator if you monetize a newsletter, the cold email simulator if you are planning outbound campaigns, the list hygiene forecaster to check your list health, the e-commerce flow estimator for online stores, and the team cost calculator when you are ready to build or restructure your email marketing team. Each tool includes an explanation section below it to help you understand the results and apply them to your specific situation. Our comparison guides and blog posts provide additional context for interpreting your results.

Contact Us

Have questions, suggestions for new tools, or found something that needs fixing? We'd love to hear from you. Visit our Contact page to get in touch. We read every message and typically respond within 1-2 business days. Your feedback directly shapes our development priorities and helps us build better tools for everyone.