Free founder tools

Tools for the numbers that matter

Quick, founder-friendly calculators for runway, fundraising, equity, and more — with plain-English guidance, no sign-up required.

Startup finance

Runway, burn, fundraising, dilution, equity & vesting math for founders.

Runway Calculator

See how many months of cash you have left at your current burn.

Burn Rate Calculator

Work out your gross and net monthly burn.

Dilution Calculator

See how a new round dilutes existing ownership.

SAFE Calculator

Model how a SAFE converts into equity.

Founder Equity Split

Split founding equity fairly across co-founders.

Vesting Calculator

See how shares vest over time with a cliff.

Fundraising Calculator

Work out how much to raise and the dilution it costs.

Model the big money calls before you commit.

Home Loan vs Rent & Invest

Compare buying a home on a loan against renting and investing the difference.

Investment Property vs Financial Portfolio

Should you keep your investment property or sell it and invest the proceeds?

Land vs Financial Assets

Compare buying land against putting the same money into financial assets.

Retirement Income: Guaranteed vs Managed

Compare a guaranteed annuity income against drawing down a managed portfolio.