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The founder's toolkit · Always free
An idea is a start. Make your next move count.
Run the numbers. Find your starting point. Everything here is free, with no sign-in or credits.
Free startup calculators
All calculatorsEvery number. A clearer decision.
Your inputs. Clear working. Find the costs, margins and milestones behind your next move.
- Break-evenHow many units you have to sell before the business stops losing money.Open calculator
- Startup costWhat it costs to open the doors, and how long your cash lasts after that.Open calculator
- Return on investmentHow long the money you put in takes to come back, and what it returns in a year.Open calculator
- Funding neededHow long your cash lasts, and how much more you need to reach the month you are aiming for.Open calculator
- Customer Acquisition CostHow much you spend to acquire a single paying customer.Open calculator
- Lifetime Value (LTV)A strategic tool to calculate Lifetime Value (LTV) for your business.Open calculator
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- LTV:CAC RatioA strategic tool to calculate LTV:CAC Ratio for your business.Open calculator
- Payback PeriodA strategic tool to calculate Payback Period for your business.Open calculator
- Gross MarginA strategic tool to calculate Gross Margin for your business.Open calculator
- Net MarginA strategic tool to calculate Net Margin for your business.Open calculator
- ARPUA strategic tool to calculate ARPU for your business.Open calculator
- Churn RateA strategic tool to calculate Churn Rate for your business.Open calculator
Startup guides
All guidesOpen a new chapter.
Practical reading for the decisions ahead, with fresh picks from the library each visit.
- Zero-Investment Business Models for Bootstrapped FoundersCapital is an accelerant, not a prerequisite. Bootstrapping forces financial discipline and rapid iteration. By leveraging…Read the guide
- Startup Cash Flow Management: Extending Your RunwayRevenue is vanity, margin is sanity, but cash is reality. A profitable startup will still go bankrupt if the timing of its cash…Read the guide
- Freemium to Paid Conversion: Strategies that Actually WorkA massive free user base is a liability unless you can convert them. Freemium models only work when the friction between the free…Read the guide
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- Startup Equity Split Guide: Avoiding Co-Founder ConflictMore startups die from co-founder disputes than from market competition. A poorly structured equity split will cripple your…Read the guide
- Competitor Analysis Framework for FoundersObsessing over competitors leads to derivative products. However, ignoring them entirely is strategic negligence. A strong…Read the guide
- Startup Metrics Dashboard: KPIs that Actually MatterData without structure is noise. A startup metrics dashboard should not be a sprawling collection of every conceivable data…Read the guide
Startup glossary
Full glossaryBig ideas. Plain words.
The terms you will meet along the way, explained in plain language.
- BillingsThe actual invoice amounts billed to customers in a period. This includes recognized recurring revenue plus…See the definition
- BookingsThe total value of all signed contracts in a given period, regardless of when the cash is collected or…See the definition
- Cost Per Acquisition (CPA)The cost to acquire a non-customer action, such as a lead, sign-up, or registration, rather than a paying…See the definition
- A/B TestingA randomized experimentation process wherein two or more versions of a variable (web page, page element…See the definition
- Burn MultipleA metric that evaluates a startup's capital efficiency by measuring how much cash it burns to generate each…See the definition
- Bottom-Up Market SizingCalculating market size by multiplying the exact number of potential customers by the realistic price they…See the definition
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- LTV:CAC RatioThe relationship between the lifetime value of a customer and the cost to acquire them. It measures the ROI…See the definition
- Software Development Kit (SDK)A collection of software development tools in one installable package, used to build applications for a…See the definition
- Software as a Service (SaaS)A software licensing and delivery model in which software is licensed on a subscription basis and is…See the definition
- Drag-Along RightsA provision allowing majority shareholders to force minority shareholders to join in the sale of a company.See the definition
- BootstrappingBuilding a company entirely from personal finances or operating revenue without raising outside venture…See the definition
- Customer Relationship Management (CRM)Software used to manage interactions with customers and potential customers.See the definition
From the blog
All postsRead beyond the obvious.
Ideas, field notes and founder lessons worth taking into your next decision.
- Starting an online business with no money and no laptopA practical breakdown of what you can actually build from a smartphone without spending cash or owning a laptop.Read the story
- 50 Passive Income Business Ideas That Still Need You (a Little)Fifty passive income ideas sorted by how they actually earn: templates you sell again and again, digital assets, coin machines on…Read the story
- How to find your first paying customer without spending on adsYour first sale comes from people who already trust you, not from paid ads. Here is how to turn your contact list into paying…Read the story
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- 30 Smart Village Business Ideas That Actually Make Money30 village businesses laid out along the farming year: before sowing, while crops grow, at harvest, after harvest and every day…Read the story
- selling social media caption templates for niche businessesDesign tools made graphics easy, but small business owners still spend hours staring at blank text boxes before posting.Read the story
- 50 Side Hustle Ideas You Can Run After Your Day Job EndsFifty side hustles that fit around a 9 to 6 job: evening desk work, weekend jobs with your hands, and seasonal gigs, each linked…Read the story