Newsletter Revenue Calculator
Estimate earnings from subscribers, open rate, click rate, and revenue per click.
Open calculator →Free Business Calculators for Online Entrepreneurs
Calculate revenue, pricing, costs, conversion rates, affiliate income, SaaS metrics, and business profitability with simple free calculators.
Featured calculators
High-value tools for newsletters, SaaS contracts, affiliates, Shopify profit, MRR, and refund rate.
Contract Value Calculator
Estimate average contract value for SaaS, B2B, and recurring customer agreements.
Open calculator →Affiliate Marketing Calculator
Estimate commission income from traffic, click-through rate, conversions, and average commission.
Open calculator →Shopify Profit Calculator
Estimate net store profit after products, fees, shipping, refunds, advertising, and apps.
Open calculator →MRR Calculator
Calculate monthly recurring revenue and understand how subscription changes affect MRR.
Open calculator →Refund Rate Calculator
Calculate the percentage of orders refunded during a selected period.
Open calculator →Popular calculators
ROAS Calculator
Attributed revenue ÷ ad spend for the attribution window your team adopts.
Open calculator →Break-even CPC Calculator
Highest affordable CPC when gross profit per order meets your on-site conversion to purchase.
Open calculator →Affiliate Marketing Calculator
Estimate affiliate commission income from traffic, clicks, conversion rate, and commission per sale.
Open calculator →MRR Calculator
Calculate monthly recurring revenue from paying customers and average subscription price.
Open calculator →LTV CAC Calculator
Calculate the LTV:CAC ratio from customer lifetime value and acquisition cost.
Open calculator →Freelance Hourly Rate Calculator
Hourly rate that backs into an annual income goal after realistic billable hours.
Open calculator →Newsletter Revenue Calculator
Estimate newsletter revenue from subscribers, opens, clicks, and revenue per click.
Open calculator →Shopify Profit Calculator
Estimate Shopify profit margin after product costs, fees, shipping, and payment processing.
Open calculator →Use cases
For SaaS founders
Calculate MRR, ARR, churn, LTV, CAC, payback period, and retention.
For creators
Estimate sponsorship pricing, newsletter revenue, course revenue, and audience monetization.
For marketers
Measure ROAS, CPA, CPC, CTR, break-even ROAS, and funnel conversion rates.
Advertising metrics hub → · Advertising category → · Conversion category →
For freelancers
Calculate hourly rates, project pricing, income goals, and client profitability snapshots.
Why use FounderCalc?
- No sign-up required.
- Free business calculators spanning ads, SaaS, creators, freelancers, ecommerce, and email.
- Each calculator page shows formulas, plain-English interpretations, FAQs, glossary links, and related tools.
- Built for founders, freelancers, marketers, SaaS operators, ecommerce owners, and newsletter senders.
- No account wall—bookmark the tools you rerun after pricing or campaigns change.
Featured guides
Advertising
What Is a Good ROAS?
Read guide →Advertising
How to Calculate Break-even ROAS
Read guide →SaaS
What Is a Good LTV:CAC Ratio?
Read guide →Newsletter / Creator Economy
How to Price Newsletter Sponsorships
Read guide →Freelance
How to Set Your Freelance Hourly Rate
Read guide →eCommerce / Pricing
How to Calculate Product Profit Margin
Read guide →Browse the full guides library anytime. Open guides →
Browse by category
Advertising
Estimate CPC, CPM, CPA, ROAS, break-even CPC, and campaign profitability.
10 calculators
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Affiliate Marketing
Forecast affiliate revenue from traffic, clicks, conversions, and commission rates.
6 calculators
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Conversion
Measure landing page, funnel, CTR, CPA, and conversion performance from visitor behavior.
3 calculators
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Creator Economy
Estimate creator revenue, sponsorship pricing, course sales, and audience monetization potential.
8 calculators
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eCommerce
Calculate product pricing, Shopify margins, AOV, break-even points, and store profitability.
8 calculators
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Email Marketing
Estimate newsletter revenue, email ROI, list value, sponsorship income, and subscriber performance.
5 calculators
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Finance
Plan runway, break-even points, and basic business financial health.
2 calculators
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Freelance
Price projects, estimate hourly rates, and plan independent income goals.
2 calculators
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SaaS
Calculate MRR, ARR, ARPU, CAC, LTV, churn, retention, and SaaS unit economics.
16 calculators
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Latest calculators
YouTube Sponsorship Calculator
Average integration views times sponsor CPM ÷ 1,000 for a fee anchor.
Open calculator →Patreon Revenue Calculator
Active patrons times average pledge before platform fees—gross membership snapshot.
Open calculator →Repeat Purchase Rate Calculator
Share of customers in your slice who bought more than once under your rules.
Open calculator →Inventory Turnover Calculator
COGS over a period divided by average inventory value on hand.
Open calculator →Refund Rate Calculator
Refunded orders divided by fulfilled orders—how often sales slide backward.
Open calculator →Simple Net Profit Calculator
Revenue minus a lump of operating expenses you chose to sum for a planning pass.
Open calculator →Gross Margin Calculator
Revenue minus cost of goods sold, expressed as percent of revenue.
Open calculator →Contract Value Calculator
Calculate average contract value (ACV) from total contract revenue and deal count.
Open calculator →SaaS Quick Ratio Calculator
(New MRR + expansion MRR) ÷ churn and contraction dollars—velocity check, not profit.
Open calculator →Expansion MRR Calculator (Share of Starting MRR)
Expansion bookings as a percentage of starting MRR for the timeframe you framed.
Open calculator →Revenue Churn Calculator (Gross MRR Lost)
Recurring revenue lost from downgrades and cancellations compared with recurring revenue at the start of the period.
Open calculator →Logo Churn Calculator
Calculate logo churn—the percent of customer accounts lost in a period.
Open calculator →