Enter Business Equity Details
Use this calculator for owner equity, investment dilution, option pool planning, convertible debt impact, and estimated exit value.
Example Data Table
| Scenario | Pre-Money | Investment | Option Pool | Owner Shares | Current Shares |
|---|---|---|---|---|---|
| Seed Round | $1,000,000 | $250,000 | 10% | 60,000 | 100,000 |
| Bridge Round | $1,800,000 | $300,000 | 8% | 55,000 | 110,000 |
| Growth Round | $4,000,000 | $1,000,000 | 12% | 500,000 | 1,000,000 |
Formula Used
Book Equity: Total Assets - Total Liabilities
Price Per Share: Pre-Money Valuation / Current Shares
Investor Shares: Investment Amount / Price Per Share
Convertible Shares: Convertible Debt / Discounted Conversion Price
Option Pool Shares: Target Pool % × Shares Before Pool / (1 - Target Pool %)
Post-Deal Ownership: Your Shares / Total Post-Deal Shares × 100
Dilution: Current Ownership % - Post-Deal Ownership %
Stake Value: Ownership % × Valuation
How to Use This Calculator
Enter total assets and liabilities to estimate book equity. Add the pre-money valuation if you already have a negotiated valuation. Enter current shares and your own shares to define your present ownership. Then add the new investment amount, option pool target, convertible debt, and discount. Press the calculate button. The result appears above the form. Review ownership, dilution, issued shares, valuation, and estimated exit value. Use CSV or PDF buttons to save your result.
Business Equity Planning Guide
Why Business Equity Matters
Business equity shows the value left after liabilities are removed from assets. It also shows how ownership is divided among founders, investors, employees, and debt holders. A clear equity view helps owners make better funding choices. It can also reduce confusion during negotiations.
Understand Book Equity
Book equity is simple. It equals assets minus liabilities. This figure is useful for balance sheet review. Yet it may not match market value. A fast growing company may be worth more than book equity. A weak company may be worth less.
Understand Ownership Dilution
Dilution happens when new shares are issued. Investors may receive shares for cash. Debt holders may receive shares after conversion. An option pool may also create extra shares. Each event can lower an existing owner’s percentage. The owner may still gain value if the company valuation rises enough.
Compare Pre-Money and Post-Money
Pre-money valuation is the company value before new capital. Post-money valuation adds the new capital and converted value. This difference is important. It affects investor ownership and founder control. A higher pre-money value usually means less dilution for current owners.
Use Option Pools Carefully
An option pool reserves shares for employees and advisors. Investors often request a pool before funding. The timing matters. If the pool is created before investment, founders usually take more dilution. This calculator estimates a target post-deal pool, so you can see the impact clearly.
Review Convertible Debt Impact
Convertible debt can turn into shares at a discounted price. A larger discount creates more shares for debt holders. That can reduce founder ownership. Always review conversion terms before signing a financing agreement.
Make Better Funding Decisions
This tool helps compare funding scenarios. Change one input at a time. Review ownership after each change. Check the estimated exit stake value. A smaller percentage of a stronger company may be better than a larger percentage of a weaker one.
Frequently Asked Questions
What is business equity?
Business equity is the remaining value after liabilities are subtracted from assets. It can also describe ownership value held by founders, investors, employees, or partners.
What is owner dilution?
Owner dilution happens when new shares are issued. Your share count may stay the same, but your ownership percentage becomes smaller after the new shares exist.
What is pre-money valuation?
Pre-money valuation is the estimated value of a company before new investment enters the business. It is used to price investor ownership.
What is post-money valuation?
Post-money valuation is the company value after adding new investment. It helps show how much of the company the investor receives.
Why does an option pool affect ownership?
An option pool creates or reserves shares for future employees and advisors. Those shares increase total shares, so existing ownership percentages may decrease.
How does convertible debt affect equity?
Convertible debt may become shares at a discount. When it converts, more shares are issued, and existing owners may face added dilution.
Is book equity the same as market value?
No. Book equity comes from assets and liabilities. Market value may include growth, brand strength, profit, risk, and investor demand.
Can this calculator replace legal advice?
No. It is for planning and education. Always consult qualified legal and financial advisors before signing equity or investment agreements.