Founder A
- Shares
- 5,500,000
- Before
- 55.0%
- After
- 44.0%
- Dilution
- -11.0 pp
Private browser utility / Calculators
Free Cap Table Calculator
Runs entirely in your browser - no upload, no sign-up.
Current cap table
4 of 12 holders
1
2
3
4
Optional priced round
Leave all three fields blank for a current ownership snapshot.
Post-round ownership
Ownership summary
A $2,000,000.00 investment at a $8,000,000.00 pre-money valuation gives Series A investor 20.0% post-round ownership.
Current fully diluted shares10,000,000
Post-round fully diluted shares12,500,000
Round price per share$0.80
Post-money valuation$10,000,000.00
Ownership distribution
| Holder | Shares | Before | After | Dilution |
|---|---|---|---|---|
| Founder A | 5,500,000 | 55.0% | 44.0% | -11.0 pp |
| Founder B | 2,500,000 | 25.0% | 20.0% | -5.0 pp |
| Option pool | 1,000,000 | 10.0% | 8.0% | -2.0 pp |
| Seed investors | 1,000,000 | 10.0% | 8.0% | -2.0 pp |
| Series A investorNew | 2,500,000 | Not applicable | 20.0% | Not applicable |
Founder B
- Shares
- 2,500,000
- Before
- 25.0%
- After
- 20.0%
- Dilution
- -5.0 pp
Option pool
- Shares
- 1,000,000
- Before
- 10.0%
- After
- 8.0%
- Dilution
- -2.0 pp
Seed investors
- Shares
- 1,000,000
- Before
- 10.0%
- After
- 8.0%
- Dilution
- -2.0 pp
Series A investorNew
- Shares
- 2,500,000
- Before
- Not applicable
- After
- 20.0%
- Dilution
- Not applicable
This is a planning model for a simple priced round. It does not model SAFEs, notes, warrants, liquidation preferences, pool top-ups or legal terms.
What is a cap table calculator?
A cap table calculator turns each shareholder's fully diluted share count into an ownership percentage. Add founders, investors and an employee option pool, then optionally model a priced funding round to see the share price, new investor allocation and post-round dilution for every existing holder.
02
How to use
- 01List current holders
Add each founder, investor, adviser or option pool and enter its fully diluted share count.
- 02Check current ownership
Review each holder's percentage of the current fully diluted total.
- 03Model a priced round
Optionally enter the pre-money valuation, new investment and investor name to calculate the round.
- 04Compare before and after
Read the new shares issued, post-money valuation and percentage-point dilution for every existing holder.
03
Who it's for
- Startup founders checking how a proposed investment changes their ownership before negotiating a term sheet.
- Finance teams creating a quick fully diluted ownership snapshot from existing share counts.
- Employees and advisers understanding how an option pool and new shares affect percentage ownership.
- Investors checking the price per share and post-money stake implied by a simple priced round.
Use the current view as an ownership snapshot or add one priced round to compare before and after percentages. The model updates live and runs entirely in your browser. It is a planning aid, not a legal share register or substitute for reviewing financing documents.
FAQ
Is this cap table calculator free?
Yes. The calculator is free, needs no account and supports up to 12 current holders plus one new investor. You can model a current ownership snapshot or one simple priced funding round and copy the resulting cap table.
Is my cap table data uploaded?
No. Holder names, share counts, valuations and investment amounts stay in your browser. The calculator does not upload, save or share your ownership data, and clearing the page removes the values from the tool.
How many shareholders can I include?
You can include up to 12 rows. A row can represent one person, an investor group, an employee option pool or another fully diluted bucket. Combine holders only when a grouped ownership percentage is useful for your planning question.
How is ownership percentage calculated?
Divide a holder's shares by total fully diluted shares, then multiply by 100. If a founder owns 5 million shares out of a 10 million fully diluted total, the founder owns 50% before any new shares are issued.
How does a priced funding round change the cap table?
The calculator divides pre-money valuation by current fully diluted shares to get the price per share. It then divides the investment by that price to find new investor shares. Existing holders keep the same shares but own a smaller percentage of the larger post-round total.
Does this calculator handle SAFEs or convertible notes?
No. SAFEs and notes may use valuation caps, discounts, interest and document-specific conversion rules. This calculator models common shares, an option pool and one simple priced round only. Use the actual financing documents and professional advice for a legal cap table.
What does fully diluted mean in a cap table?
Fully diluted shares include outstanding shares plus equity that could become shares under the model, such as an employee option pool. The exact definition can vary by financing agreement, especially for warrants and convertible securities, so match the denominator used in the term sheet.
Is post-money valuation the same as company value after the round?
In this simple model, post-money valuation equals pre-money valuation plus the new cash investment. Real transactions can include debt conversion, secondary sales, fees or other terms that make the legal and economic outcome more complex.