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Cap Table Split Calculator

Work out cap table split instantly with clear inputs, formula shown and shareable results.

About Cap Table Split Calculator

A fully diluted cap table counts every share that could exist: issued shares plus the whole option pool, whether granted or not. Percentages calculated on a fully diluted basis are the only ones comparable across rounds, because they already absorb the pool.

Formulas

Fully diluted shares

Total = Founders + Investors + ESOP pool + Advisors

Ownership

Ownership % = Holder shares / Fully diluted total x 100

Worked example

With the default values below, Cap Table Split Calculator returns Founder ownership of 57.143%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Founder shares
6,000,000
Investor shares
3,000,000
ESOP pool shares
1,200,000
Advisor and other shares
300,000

Results

Founder ownership
57.143%
Investor ownership
28.571%
ESOP pool
11.429%
Total shares (fully diluted)
10,500,000

Step by step

  1. 1Values used
  2. 2Fully diluted shares
  3. 3Ownership
  4. 4Founder ownership= 57.143
  5. 5Investor ownership= 28.571
  6. 6ESOP pool= 11.429
  7. 7Total shares (fully diluted)= 10,500,000

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Should ungranted options be counted?

Yes on a fully diluted basis. Excluding them flatters everyone's percentage and hides dilution that is already committed.

What founder stake is normal after a Series A?

Commonly 50-65% collectively, with investors at 20-30% and a pool of 10-15%, though it varies widely by sector and round size.

Related Calculators

Cap Table Split Calculator – Calculate Founder ownership