Use six free calculators to examine funnel drop-off, experiments, engagement, retention, and unit economics in one workspace.
Growth product managers use conversion, retention, activation, and unit economics to assess acquisition and product changes. Consistent definitions and measurement help the team compare experiments and decide where to invest.
PM Toolkit provides free calculators for these decisions. Supported tools can share results within the session, reducing repeated data entry. No sign-up is required.
Six calculators for acquisition, retention, and unit economics. Import results between supported tools to reduce repeated entry.
Conversion rate measures the share of visitors or users who complete a chosen action. Compare funnel steps and estimate how a change could affect acquisition costs. Improvements still require work and may have costs of their own.
Open CalculatorDAU/MAU compares daily and monthly activity. Review it alongside the expected usage frequency and cohort retention. Changes can prompt investigation, but do not by themselves prove that an initiative worked or that retention is in crisis.
Open CalculatorIf growth depends on acquiring users faster than you lose them, it can stall when acquisition slows. Compare retention across cohorts and examine the actions of users who stay and those who leave. Use those patterns to assess whether growth initiatives attract users who return.
Open CalculatorThe A/B test suite supports sample-size and duration planning, monitoring, and analysis. Plan the effect size and power before starting; an underpowered test can miss an effect that matters.
Open CalculatorCAC by channel measures the cost of acquiring customers. Compare it with retention and LTV for the same cohorts to assess whether those customers justify the acquisition cost. CAC alone does not show who stays or spends.
Open CalculatorEstimate customer lifetime value using assumptions that fit your business model. Compare LTV with CAC and payback when evaluating acquisition spending, and review how changes in churn or margin affect the estimate.
Open CalculatorUse these calculators in sequence to run a complete growth cycle from diagnosis to optimisation.
Use the Conversion Rate Calculator to map your acquisition-to-activation funnel. Find the step with the highest drop-off rate and assess how improving it could affect overall conversion.
Review DAU/MAU alongside cohort retention and expected usage frequency. Investigate changes before deciding whether to invest in engagement or acquisition.
Use Retention Analytics to compare long-term retention across cohorts. Examine what the cohorts with higher retention did in their first 7 days when choosing activation milestones to investigate.
Estimate sample size in A/B Test Planning before launching. After the experiment closes, check statistical significance in Post-Analysis. Record the outcome before moving to the next hypothesis.
Connect the CAC Calculator and LTV Calculator to compute your LTV:CAC ratio by acquisition channel. Review the ratio alongside payback, retention assumptions, and cash needs before changing channel budgets.
The A/B Test Suite covers pre-test planning, sample size, and post-experiment analysis. Use these steps to plan an experiment and assess its results consistently.
Choose a North Star metric that reflects the value your product delivers. Review it alongside conversion, retention, and engagement to understand how product activity relates to business results.
Review retention before increasing acquisition spending. If new customers leave quickly, assess the reasons and the effect on LTV and payback. Use Retention Analytics to establish a baseline and compare cohorts before recommending more acquisition investment.
Review LTV:CAC and payback alongside cash needs, margins, and retention. A ratio alone does not establish that acquisition spending is affordable. Import CAC into the LTV Calculator to compare the two estimates.
Map your funnel and compare drop-off between steps. Use the Conversion Rate Calculator to estimate how a change could affect overall conversion, then test the assumptions behind that estimate.
Use conversion rates to find funnel drop-off, A/B tests to assess experiments, retention analysis to compare cohorts over time, and DAU/MAU to examine engagement. CAC and LTV help with unit economics and channel efficiency.
You can import results between related calculators. For example, import CAC into the LTV Calculator to compute LTV:CAC without copying the figure by hand.
Yes. Every calculator on PM Toolkit is completely free with no sign-up required. The toolkit was built to give back to the product management community and lower the barrier to data-driven decision making for growth practitioners at any stage of their career.
Choose a reference range that fits the product’s intended usage frequency and definition of activity. Messaging tools and occasional-use products serve different needs. Review DAU/MAU alongside retention before diagnosing an engagement problem.