I wrote a co-founder equity calculator over the weekend
I wrote a co-founder equity calculator over the weekend launched on June 22, 2011 with 136 votes, #7 of 181 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 15 years on.
In plain words
This co-founder equity calculator helps startup founders divide ownership fairly among team members. Developed based on input from entrepreneurs and the Silicon Valley Startup Conference, it offers an experimental approach to a common early-stage challenge. The tool is designed for anyone starting a company who needs guidance on equity distribution, though users are invited to provide feedback for improvements.
written from the facts on this page · September 2026
From the sources
Welcome to the Co-Founder Equity Calculator ! Based on years of discussions with entrepreneurs and the Silicon Valley Startup Conference . This calculator is experimental. If you don't like the results, send feedback and I'll try to improvefrom foundrs.com
Does a similar job
all alternatives →
Capbase Startup Equity Calculator2022 · capbase.com · ▲187Divide up equity fairly with your co-founders
Startup Equity Calculator2014 · startupequity.io · ▲164Figure out how much equity to grant new hires in seconds.
Founder Salary Calculator2017 · docs.google.com · ▲342Unsure how much to pay yourself? Check out this calculator.
Startup Fundraising Calculator2019 · ledgy.com · ▲261The calculator you need if you’re raising money.
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