SaaS & B2B calculators
Revenue forecasting and unit economics, interactive, private, and fast.
MRR & churn forecaster
Churn, expansion, and net-new bookings, see MRR and ARR over 3–36 months.
SaaS pricing tier optimizer
Two or three tiers, annual vs monthly mix, per-tier MRR and margin, stacked revenue, and mix sensitivity.
SaaS LTV calculator
Simple, gross-margin, discounted, and contract LTV in one view, plus gross-margin LTV vs churn sensitivity.
CAC payback period calculator
Simple and churn-adjusted months to recover CAC, health bands, five-scenario CAC sensitivity, and four-lever savings chart.
Rule of 40 visualizer
ARR growth plus profit margin, Rule of 40 score, scatter map with R40 and R60 lines, optional quarter history.
Net revenue retention calculator
NRR and GRR from expansion, contraction, and churn, MRR waterfall, lever table, and 12-month cohort projection.
Series A dilution calculator
Option pool shuffle, pre and post cap tables, founder dilution waterfall, and post-close pool sensitivity.
SaaS Magic Number calculator
Gross-adjusted and simple Magic Number, GTM efficiency bands, breakeven callout, and optional quarterly trend chart.
Burn rate & runway calculator
Iterated cash runway with MoM revenue growth, gross vs net burn, cash chart with break-even marker, and four scenario rows.
Subscription revenue is a system
MRR moves with new bookings, expansions, and churn. Small changes in gross churn compound into large gaps at the horizon, which is why scenario tools matter for planning and for communicating tradeoffs to stakeholders.
The forecaster in this category is intentionally transparent: inputs map to a month-by-month series you can sanity-check in the chart without exporting data to a server.
Combine these projections with freelance pricing when your team mixes services and software, or with finance calculators when you are modeling how profit converts to savings or debt paydown.
More SaaS economics tools will join this page over time using the same slot layout for predictable monetization and UX.