Free Tools for SEOs, Marketers and SaaS Founders
Explore a growing library of free SEO, marketing and SaaS tools designed to help founders and marketers analyze, validate, and optimize growth decisions without paid software.
- 100% free
- No sign-up required
- Fast & accurate
Activation Rate Calculator
Measure how effectively new users activate and reach core product value.
ACV Calculator
Calculate annual contract value accurately from contract revenue inputs.
ARR Calculator
Estimate annual recurring revenue using customers, churn, and expansion.
Avg. Profit Margin Calculator
Determine profit margin percentage using total revenue and profit values.
Burn Multiple Calculator
Evaluate capital efficiency by comparing burn rate against new ARR.
CAC SaaS Calculator
Calculate customer acquisition cost using sales and marketing expenses.
Churn Rate Calculator
Measure customer churn percentage over a defined business period.
CLV Calculator
Estimate total customer value over entire relationship lifecycle accurately.
CMGR Calculator
Calculate compound monthly growth rate using starting and ending revenue.
Conversion Rate Calculator
Measure conversion efficiency using visitors, conversions, and time duration.
Cost of Goods Sold Calculator
Calculate cost of goods sold using inventory and purchase values.
CPA Calculator
Calculate cost per acquisition based on marketing spend and conversions.
CPM Calculator
Calculate cost per thousand impressions for advertising campaign performance.
Customer Concentration Calculator
Analyze revenue dependency on top customers to assess business risk.
Customer Growth Rate Calculator
Measure customer base growth between starting and ending periods.
Lead Conversion Rate Calculator
Calculate percentage of leads converted into paying customers.
MQL to SQL Calculator
Calculate conversion rate from marketing qualified leads to sales qualified.
MRR Calculator
Calculate monthly recurring revenue using subscribers and subscription values.
Net Dollar Retention Calculator
Measure retained revenue including expansions while excluding churn losses.
Net Negative Churn Calculator
Evaluate whether expansion revenue exceeds churned recurring revenue.
Net Revenue Retention Calculator
Calculate revenue retention accounting for expansion, contraction, and churn.
Marketing ROI Calculator
Measure marketing return by comparing generated revenue against total costs.
PPC ROI Calculator
Calculate return on investment from paid advertising campaigns accurately.
Retention Rate Calculator
Measure percentage of customers retained over a defined business period.
Revenue Run Rate Calculator
Estimate annualized revenue based on current recurring revenue performance.
Rule of 40 Calculator
Evaluate SaaS health using combined growth rate and profit margin.
SaaS Gross Margin Calculator
Calculate gross margin percentage after subtracting cost of services.
SaaS Quick Ratio Calculator
Measure revenue growth efficiency by comparing gains against losses.
SaaS Metrics Calculator
Analyze key SaaS metrics together for faster performance insights.
SaaS Magic Number Calculator
Measure sales efficiency using revenue growth and marketing spend.
Read Our Blogs to Grow Your Brand
Actionable guides, frameworks, and tutorials to help you improve rankings, traffic, and conversionswithout guesswork.
Frequently Asked Question (FAQs)
Are these SaaS calculators free to use?
Yes. All SaaS calculators on SERP Forge are completely free to use, with no sign-up, login, or credit card required.
How accurate are the results generated by these calculators?
Each calculator uses industry-standard SaaS formulas and best practices to deliver accurate, reliable results based on the data you provide.
Who should use these SaaS calculators?
These tools are ideal for SaaS founders, marketers, product managers, growth teams, and investors who want quick insights into key SaaS metrics.
Can I use these tools for early-stage or bootstrapped SaaS businesses?
Yes. These calculators are designed to work for early-stage, bootstrapped, and scaling SaaS companies, even if you have limited data or small customer volumes.
Can I use these calculator results for investor decks or internal reports?
Absolutely. The metrics generated—such as ARR, CAC, churn rate, and growth rates—are commonly used in investor updates, pitch decks, board reports, and internal dashboards.
How often should I use these SaaS calculators?
You can use them anytime—monthly, quarterly, or during planning cycles—to track performance trends, monitor growth, and improve decision-making.
Do these tools store or track my data?
No. All calculations happen locally in your browser. We do not store, track, or transmit any data you enter into the tools.
Are these metrics suitable for non-SaaS businesses?
Some calculators (like CPC, CPA, ROI, and conversion rate tools) can be used by non-SaaS businesses, but SaaS-specific metrics such as ARR, LTV, or Quick Ratio are best suited for subscription-based models.
What should I do if my calculated value looks unusually high or low?
Double-check your inputs, especially timeframes and revenue figures. Extreme results usually indicate mismatched periods (monthly vs yearly) or missing expansion/churn data.