Cap Table Calculator — BlackBox Society

Inputs

Model: option pool is created pre-money and priced into the round (common in seed/Series A).

Founders total shares (pre-round)

Pre-money valuation ($)

New money invested ($)

Target option pool (% of post-money)

Round label (for copy/paste)

Notes / assumptions

This is a simplified 1-round cap table (no SAFEs/notes/previous investors, no liquidation prefs).
We assume: price/share = preMoney / (founders + optionPool).
The option pool is solved so it ends up as poolPct of the post-money fully diluted cap table.

Post-money valuation

—

Price per share (implied)

—

Investor ownership (post)

—

Founders ownership (post)

—

Sanity check: pool% must be < — for these inputs.