Resources / tools
Models you can actually use.
Six small calculators turn open questions about scope, capacity and growth economics into explicit assumptions. They are planning tools, not forecasts.
Choose a model
Start with the constraint you need to understand.
Use the inputs you know, then vary the uncertain ones. Each calculator explains its method, exclusions and the decision it can support.
Website scope
Compare the complexity of pages, integrations, bookings and migration.
Open resource ↗OperationsHotline revenue
Model gross call value from reader capacity and paid utilisation.
Open resource ↗GrowthGoogle Ads ROAS
Test paid acquisition economics before you scale spend.
Open resource ↗PlatformMarketplace revenue
Separate booking value from the platform share.
Open resource ↗OperationsConsultation capacity
Estimate sessions your team can deliver under realistic occupancy.
Open resource ↗ContentContent production
Scope article volume, words and writing budget.
Open resource ↗Choose a decision, then a calculator.
Use consultation capacity to compare session availability with likely demand; hotline revenue to model paid minutes; marketplace revenue to see the platform share; Google Ads ROAS to compare gross client value with ad spend; content production to estimate workload; and website scope to compare build complexity.
None of these tools imports a market benchmark or predicts demand. Change the assumptions to fit your operation and run low, expected and high cases. If a result looks attractive, check the underlying capacity, refund behavior, staff time and customer quality before spending.
For a proposal, bring the assumptions and what you can verify. The outputs are planning aids, not quotes, financial advice or guaranteed returns.
Read the output before making a budget decision.
A capacity estimate is not demand. A hotline or marketplace revenue estimate is not cash left after reader payments, refunds, telecom and support. The advertising calculator shows gross return on ad spend, not profit or accounting ROI.
The website scope score compares relative complexity; it is not a price quote. The content planner counts production volume and writing cost, while editing, expert review and distribution may need separate effort.
Use observed business numbers where you have them, then change the weakest assumption. That gives you a specific question to test before investing in a larger build or campaign.
Try a sensitivity check
Run a conservative, base and optimistic version of a calculator by changing one uncertain input at a time. For a hotline, compare connected minutes per available reader hour. For advertising, compare qualified enquiry rate and close rate separately. For a website scope, distinguish a simple service site from integrations and complex roles.
Write down where each input came from and revisit the model with actual results after launch. A tool is most valuable when it shows which assumption matters and which decision to test next.