Free Tools
Startup Calculators
Quick tools to size your market, project runway, and check unit economics. No signup required.
๐
Market Size (TAM/SAM/SOM)
Estimate your total addressable market, serviceable market, and realistic 3-year capture.
Inputs: TAM in $M, SAM %, SOM %
โฑ๏ธ
Startup Runway
Find out how long your cash lasts at your current burn rate.
Inputs: cash, monthly burn, monthly revenue
๐ฐ
CAC vs LTV
Check if your unit economics are healthy before scaling your acquisition spend.
Inputs: spend, new customers, ARPU, lifespan, margin
๐
ROI Calculator
Calculate your return on investment and see whether your startup spend is generating real returns.
Inputs: investment, annual revenue, annual operating costs
๐
Break-Even Point
Find how many units you need to sell each month before you start making profit.
Inputs: fixed costs, variable cost per unit, price per unit
๐งฎ
Startup Cost Estimator
Estimate your first-year costs โ one-time and monthly โ and get a recommended funding target.
Inputs: tech, legal, design, team, marketing, tools, office
Also validate your idea
Calculators tell you if the numbers work. IdeaCheck tells you if the market is real โ using signal from 28,000 real Hacker News founder discussions.
Validate your idea โ