Quick Calculator 10
Basic Cap Table Builder
Build a simple startup cap table using holders, share counts and option pool size to see who owns what on a fully diluted basis.
This is a practical founder-facing cap table builder for early use. It is designed to make ownership structure visible before you move into legal documents, financing rounds or more advanced modelling.
Company Setup
Choose how many current equity holders you want to include.
This is the number of shares reserved for the option pool, whether granted or not.
This changes interpretation language only, not the ownership maths.
Holder Inputs
Holder 1
Holder 2
Please complete every visible holder field and all setup fields before building the cap table.
Issued Shares
This is the total number of shares currently issued to holders in the table.
Fully Diluted Shares
0
This includes issued shares plus the reserved option pool shares.
Option Pool %
0%
This is the option pool as a percentage of the fully diluted cap table.
Cap Table Interpretation
What the Table Is Showing
What Founders Should Watch
Basic Cap Table Builder
What it is
The Basic Cap Table Builder helps founders structure initial ownership.
What this tool does
It creates a foundational equity structure for early-stage companies.
How it works
Founder, investor and option allocations are modelled into a cap table.
Why it matters
Early mistakes in cap tables compound over time.
## How this tool fits into your capital strategy
The initial cap table defines how ownership is structured from the earliest stage of a company.
To understand how cap tables are built and how they evolve through financing events, explore:
- Startup Financing Instruments & Capital Structures
These guides explain how early decisions impact long-term ownership and control.