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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.
- Micro SaaS Pricing Models: Structuring for ProfitabilityPricing is the single most powerful lever in a Micro SaaS business. Yet, founders consistently underprice their products, relying…Read the guide
- Product-Led Growth Onboarding: Driving Rapid ActivationIn a PLG model, your product must sell itself. This means the onboarding experience is your primary sales rep. If users do not…Read the guide
- Business Idea Validation Framework: Test Before You BuildThe graveyard of startups isn't littered with bad ideas, but with unvalidated ones. Founders, blinded by conviction, often build…Read the guide
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- TAM, SAM, and SOM Market Sizing: A Practical GuideUnderstanding your market isn't a theoretical exercise; it’s a foundational requirement for any operator building a viable…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
- Pre-Launch Checklist for Startups: Technical and Marketing AuditThe market doesn't forgive unpreparedness. Your pre-launch phase isn't a suggestion; it’s the crucible where viability is forged…Read the guide
Startup glossary
Full glossaryBig ideas. Plain words.
The terms you will meet along the way, explained in plain language.
- Average Revenue Per User (ARPU)The average amount of revenue generated by each active user or account over a specific time period, typically…See the definition
- Angel InvestorA high-net-worth individual who provides financial backing for small startups or entrepreneurs, typically in…See the definition
- UptimeThe percentage of time that a system or network is operational and available to users.See the definition
- Gross Revenue ChurnThe percentage of recurring revenue lost due to cancellations and downgrades over a given period.See the definition
- Acqui-hireWhen a company is acquired primarily for the talent of its team, rather than its product, user base, or…See the definition
- Return on Ad Spend (ROAS)The amount of revenue generated for every dollar spent on advertising.See the definition
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- Monthly Active Users (MAU)The number of unique users who interact with the product at least once in a 30-day period.See the definition
- Top-Down SalesA traditional enterprise sales strategy targeting C-level executives and decision-makers to mandate software…See the definition
- VestingThe process by which an employee or founder earns the right to their equity over time, rather than receiving…See the definition
- Burn RateThe rate at which a company is losing money. Gross burn is total monthly expenses; Net burn is total expenses…See the definition
- Average Contract Value (ACV)The average annualized revenue per customer contract. Excludes one-time fees like implementation or training.See the definition
- Unit EconomicsThe direct revenues and costs associated with a single fundamental unit of a business model (usually one…See the definition
From the blog
All postsRead beyond the obvious.
Ideas, field notes and founder lessons worth taking into your next decision.
- 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
- 50 Flexible Business Ideas for Women Balancing Work and Life50 real flexible business ideas for women, home-based and India-focused, from BBI's own research library. Real links, no invented…Read the story
- Two hundred applications and not one licensedGeneral recruitment portals fail when employers need verified technical licenses, opening a clear path for small operators to…Read the story
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- 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 Realistic Small Town Business Ideas for Local EntrepreneursA walk through a small Indian town, stop by stop: the highway, the bazaar, the farm edge, the building site and the homes. 50…Read the story
- 50 Realistic Part-Time Business Ideas for Extra Income50 part-time business ideas sorted by the hours you actually have: evening laptop work, weekend jobs with tools, teaching, food…Read the story