Embed 5 interactive calculators on your accelerator website. Help founders understand dilution, SAFE notes, runway, equity splits, and offer comparisons. One line of code. Always free.
Your founders will understand dilution, SAFE notes, and runway before their first fundraise. Interactive tools beat slides every time.
We built and maintain all 5 calculators. You add one line of code. We handle updates, bug fixes, and new features automatically.
Give your program page interactive tools, not just links. Founders bookmark pages with calculators they actually use.
Founders get instant answers to equity questions without asking you. "What's my dilution?" becomes self-service.
The embeddable widgets are completely free. No signup, no API key, no account required. No hidden fees or usage limits.
Track which calculators your founders use most. Understand what equity concepts confuse your cohort so you can address them directly.
See how founder equity changes across pre-seed, seed, Series A, B, and C. Visual bar chart + dilution table.
dilutionCalculate SAFE note conversion at Series A. Pre-money vs post-money, valuation cap vs discount, ownership impact.
safeMonths of runway left based on cash, burn rate, and revenue growth projections. Color-coded urgency indicator.
runwayFair equity split calculator based on role, time commitment, idea contribution, and capital invested.
equity-splitSide-by-side comparison of two startup job offers. Total 4-year comp, exit projections, winner declaration.
compare-offersFull suite includes cap table builder, vesting calculator, 409A estimator, liquidation preference, and more.
View all tools →Pick from 5 calculators: dilution, safe, runway, equity-split, or compare-offers. You can embed one or all five.
Add a <div> and a <script> tag to your HTML page. Works with WordPress, Squarespace, Webflow, and any HTML page.
The calculators load instantly. Mobile responsive. Auto-updated when we add features. Your founders get professional equity tools for free.
Nice suite of tools. I bookmarked the dilution calculator — been looking for something simpler than Carta's interface for quick back-of-napkin math.
Pre-seed and seed programs helping founders navigate their first equity split and fundraising
Early-stage programs supporting idea-stage founders through co-founder equity splits
Founder communities, online groups, and educational platforms teaching startup fundamentals
Get the embed code in 60 seconds. No signup required. Or reach out and we'll help you set it up.
Get the Embed Code →Questions? Email us at founder.math.pro@gmail.com