Interactive calculators for startup founders. No signup, no paywall, no email required. Just open and calculate.
Used by founders preparing for pre-seed, seed, and Series A fundraising.
See how your ownership percentage changes across pre-seed, seed, Series A, B, and C funding rounds. Visual stacked bar charts and detailed cap tables.
Open Calculator →Figure out a fair equity split based on each founder's contributions: idea, technical skills, business expertise, time commitment, and capital invested.
Open Calculator →Model Y Combinator SAFE note conversions. Compare pre-money and post-money SAFEs, see conversion prices, and understand dilution impact.
Open Calculator →Calculate how many months of runway you have left. Visualize your cash burn rate, project when you'll run out, and model hiring plans.
Open Calculator →Build a complete cap table with founders, investors, option pool, and convertible notes. Track ownership percentages and share counts across rounds.
Open Calculator →Visualize your equity vesting schedule with cliff periods, monthly vesting, and acceleration. See how much equity you've earned at any point in time.
Open Calculator →Calculate Customer Acquisition Cost, Lifetime Value, and LTV:CAC ratio. Understand whether your SaaS business model is fundamentally sound.
Open Calculator →Estimate your startup's pre-money valuation using 3 proven methods: Berkus (pre-revenue), Scorecard (early stage), and Venture Capital (fundraising).
Open Calculator →Calculate what your startup stock options are really worth. See exit scenarios, vesting progress, and ISO vs NSO tax estimates in one place.
Open Calculator →Side-by-side comparison of two startup job offers. Input salary, options, strike price, vesting, and valuation — see which offer wins at every exit scenario.
Open Comparison Tool →Complete guide to understanding dilution across funding rounds.
Everything founders need to know about YC SAFE notes.
Step-by-step guide to understanding your startup's runway.
Understand 4-year vesting, cliffs, and acceleration.
How to build and maintain a clean cap table.
Quick reference formulas for dilution, vesting, SAFE notes, and more.
Free widgets for accelerators, blogs, and startup communities.
Common questions about startup equity, dilution, and financing.