Business, SaaS & Financial Calculators
Financial modeling and growth marketing tools for SaaS founders, product managers, and financial analysts. Calculate LTV, CAC payback, A/B test statistical significance, and payment processor fee comparisons.
Free PDF Invoice Generator
Create, preview, and download professional PDF invoices for your freelance business completely free.
UTM Campaign Tracking Link Builder
Generate standardized Google Analytics 4 (GA4) UTM tracking URLs for ads, newsletters, and social media campaigns.
SaaS Unit Economics & CAC / LTV Calculator
Calculate Customer Lifetime Value (LTV), Customer Acquisition Cost (CAC), Payback Period, and Rule of 40 score for SaaS businesses.
A/B Testing Statistical Significance Calculator
Calculate conversion rate uplift, two-tailed Z-scores, and statistical significance confidence for A/B split tests.
Frequently Asked Questions
Common questions about our business, saas & financial calculators.
What is the SaaS Rule of 40?
In-Depth Guides & Tutorials
View all articlesThe Math Behind Loan Amortization & EMIs
Unpacking the complex formulas that power Equated Monthly Installments and how interest compounds over time.
JSON vs XML: Which Data Format is Better?
Compare the pros, cons, and performance differences between JSON and XML in modern web APIs and microservices.
How to Calculate Your True Freelance Hourly Rate
Stop guessing your worth. A mathematical approach to calculating an hourly rate that covers taxes, overhead, and generates actual profit.