Free tools for product managers who believe in data-driven decisions
Last updated: March 2026
Product managers make hundreds of decisions every week. Many of those decisions are backed by scattered spreadsheets, disconnected tools, and incomplete data. We built PM Toolkit to change that.
PM Toolkit is a comprehensive suite of 24 interconnected calculatorsand frameworks designed to transform fragmented analysis into strategic clarity. From SaaS unit economics to prioritization frameworks, from statistical testing to market sizing — every tool works together to give you a complete picture.
Unlike isolated calculators scattered across the web, PM Toolkit connects your metrics. Your LTV calculation flows into CAC analysis, churn rates update retention projections, and market sizing informs pricing decisions. This is how product decisions should work — interconnected and data-driven.
Hi, I'm Prateek— a product manager based in Singapore.
I've spent years working in product management, and I kept running into the same problem: the tools I needed were either expensive, overly complex, or simply didn't talk to each other. I'd calculate LTV in one spreadsheet, CAC in another, and then manually try to connect the dots.
I'm passionate about data-driven decision making, and I believe every PM — whether at a startup or an enterprise — deserves access to professional-grade quantitative tools without paying for expensive SaaS subscriptions.
PM Toolkit is my way of giving back to the PM community that taught me so much. Every calculator, article, and prompt template is free and always will be.
Every calculator, framework, and learning resource is completely free. No paywalls, no premium tiers, no hidden costs. Professional-grade tools should be accessible to every product manager.
We built PM Toolkit to help PMs move from gut feelings to data-driven decisions. Every calculator shows its formula, methodology, and industry benchmarks so you can make informed choices.
Each calculator includes contextual guidance, common pitfalls, and strategic insights. Whether you are a new PM or a seasoned leader, you will learn something with every calculation.
PM Toolkit was born from the PM community and exists to serve it. We prioritize features based on what product managers actually need, not what generates revenue.
22 Interconnected Calculators
From LTV and CAC to RICE scoring and A/B testing
33 Learning Articles
In-depth guides on PM metrics, frameworks, and strategy
AI Prompt Library
Expert-crafted templates for ChatGPT and Claude
Unified Metrics Dashboard
See all your calculations in one connected view
Start using PM Toolkit today. No sign-up required, no credit card needed. Just open a calculator and start making better product decisions.
The fastest way to reach me with bug reports, feature requests, or general feedback is on LinkedIn. You can also use the in-app feedback button in the bottom-right of any page.