Work through your product metrics

Calculate CAC and LTV, score features with RICE, and explore 24 free calculators. You can see the formulas and use your results in related calculations.

Explore the free calculatorsUse in Claude & Cursor
No signup required
24 calculators
100% free

New here? Start with a worked example

A/B Test PlanningWill my A/B test be conclusive?E-commerce checkout test — Checkout flow converting at 3%, testing for a 10% relative lift with 8,000 visitors a day.Load exampleLTVWhat’s a customer actually worth?Series A SaaS — B2B SMB SaaS at ~$3M ARR. ARPU $185, 78% gross margin, 3.2% monthly churn.Load exampleChurn RateAm I losing customers too fast?Early-stage B2B SaaS — 1,000 customers at period start, 65 cancel during the month — 6.5% monthly churn.Load example
BrowseAll 63 worked examples

Try a cited example for a core PM metric. The example data stays out of your saved work until you adopt it.

Growth PMB2B PMStartup PM

Browse by Skill Area

24 calculators, organized by what you need

Find a calculator for SaaS economics, feature prioritization, or another part of your work.

View All Calculators
3 tools

Strategy & Validation

Estimate market size and examine the assumptions behind a product opportunity

Market Sizing SuiteROI & Payback PeriodBusiness Case Wizard
Explore
6 tools

SaaS Economics

Work through LTV, CAC, retention, and other SaaS economics calculations

MRR/ARR CalculatorLTV CalculatorCAC CalculatorRetention Analytics+2 more
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5 tools

Prioritization

Compare feature priorities using RICE, ICE, Kano, and other scoring methods

RICE ScoringICE ScoringWeighted ScoringImpact/Effort Matrix+1 more
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4 tools

Validation & Research

Learn statistical significance, A/B testing, and customer research methods

Sample Size CalculatorA/B Test CalculatorNPS CalculatorProduct-Market Fit Score
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2 tools

Execution & Delivery

Understand agile metrics and how to improve team predictability

Velocity TrackerCycle & Lead Time
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3 tools

Growth & Engagement

Calculate engagement metrics and examine how people use your product

Conversion RateDAU/MAU RatioActivation Rate
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A/B Testing Suite
Example test metrics

Plan your A/B test and read the results

Work out the sample size before you start. Then check your results for statistical significance and estimate the business impact.

Pre-test power analysis

Estimate the sample size your test needs

Statistical significance testing

Monitor your test with confidence intervals

Business impact projection

Estimate what the result could mean for revenue

Open the A/B testing tools
Control
3.2%Conversion Rate
+15.6%
3.7%Variant B
95% Confidence
80% Power10K Sample Size

AI + Calculations

Check the numbers behind AI suggestions

Use a prompt to draft your strategy. You can then use the calculators to check the numbers behind it.

01

Generate

AI Prompts

Templates for PRDs, RICE scoring, and competitive analysis

02

Calculate

Product metrics

Work out the numbers for your business case

03

Validate

Your inputs

Check how your assumptions affect the results

04

Decide

Next steps

Use the results to inform your decision

Guided AI Workflows

🚀
5 steps

Product Launch Playbook

From positioning through launch execution

25-35 min
Start Workflow
💼
4 steps

Business Case Builder

Market opportunity to executive summary

20-30 min
Start Workflow
📅
4 steps

Quarterly Planning

Review, OKRs, roadmap, and stakeholder comms

20-30 min
Start Workflow

Works Inside Your AI Tools

Use the available MCP calculator tools in Claude Code, Cursor, or Codex. Follow the setup instructions for your client.

Explore AI PromptsPractice with CalculatorsTry a Guided Workflow
2,400+ PMs
34,000+ calculations
100% free

Learning Hub

Read the guides behind the tools

View all 50 articles
ai modern-pm
AI Product Management in 2026: A PM's Field Guide
AI-powered PM and AI Product Manager are two different jobs. The distinction, what changed in the role, and the AI-native workflow behind each.
7 min read
intermediate
ai modern-pm
AI for Product Managers: A 2026 Field Guide
Your team is already shipping AI features. The question isn't whether to use AI. It's how to ship something that isn't a wrapper.
7 min read
beginner
ai modern-pm
Building Agentic Products: A 2026 Guide
Patterns, frameworks, and the metrics that matter. By April 2026, agentic AI shipped. Here's how to design products around it.
10 min read
intermediate

Frequently Asked Questions

Answers to common questions about the calculators and how to use them.

What is PM Toolkit and how can it help product managers?
You can use PM Toolkit's 24 free calculators to work out SaaS metrics, rank features, and plan experiments. They cover LTV, CAC, MRR/ARR, churn, pricing, RICE, ICE, weighted scoring, A/B testing, and sample size. Related calculators share inputs, so you can carry your numbers from one calculation to the next.
Which calculators are included in the PM Toolkit?
There are 24 calculators in six categories. SaaS Economics covers LTV, CAC, MRR/ARR, churn, and pricing. Prioritization includes RICE, ICE, weighted scoring, impact/effort, and Kano. Experimentation covers A/B tests, sample size, and pre-test planning. Strategy includes market sizing, business cases, ROI/payback, and PMF score. Growth covers conversion, DAU/MAU, retention, NPS, and activation. Execution covers velocity and cycle time.
Is PM Toolkit free to use?
Yes. You can use all 24 calculators without paying or signing up. The 50 Learning Hub articles, PM Prompt Library, and Data View dashboard are free too. We built PM Toolkit as a resource for the PM community.
How do the calculators work together and share data?
Related calculators let you reuse values you've already entered or calculated. You can bring LTV into CAC analysis, use churn in retention calculations, and carry market-sizing results into pricing. Check the connection controls in each calculator to see which values you can use.
What makes PM Toolkit different from other product management tools?
The calculators share data between related calculations. That lets you work through questions about your product using the same inputs, without copying each value into a separate spreadsheet. The focus is on the numbers behind product decisions.
Can I use PM Toolkit for SaaS metrics and unit economics?
Yes. You can calculate customer lifetime value (LTV), customer acquisition cost (CAC), the LTV:CAC ratio, monthly and annual recurring revenue (MRR/ARR), and churn. The calculators include benchmarks to help you put those numbers in context.

Still have questions?

Try a calculator and read the guidance alongside your result. You can use RICE to rank features or LTV to estimate customer value.

Start with RICE ScoringTry LTV Calculator