# Angel Investment Dilution Calculator > Calculate equity dilution from angel investments, see ownership changes, and model multiple funding rounds **Category:** Finance **Keywords:** angel investment, dilution, equity, startup, funding, pre-money, post-money, valuation, ownership, cap table, investor, seed round, venture capital **URL:** https://complete.tools/angel-investment-dilution-calculator ## How it calculates The calculator uses the following formula to determine the new ownership percentage after dilution: New Ownership = (Current Ownership × Total Shares) ÷ (Total Shares + New Shares). Where: - Current Ownership is the owner's existing ownership percentage (as a decimal). - Total Shares is the total number of shares currently outstanding. - New Shares is the number of shares issued to the angel investor. This formula illustrates the direct relationship between the total shares outstanding and the ownership percentage, showing how new shares dilute existing ownership. The more shares that are issued, the lower the percentage ownership of existing shareholders becomes. Users can input varying numbers of new shares and investments to see how each scenario affects their ownership stake. ## Who should use this Startup founders analyzing the effects of angel investments on equity ownership, venture capital analysts evaluating potential investments in early-stage companies, financial advisors assisting clients in understanding ownership stakes after funding rounds, and entrepreneurs preparing for investment discussions with detailed equity models. ## Worked examples Example 1: A startup has 1,000 total shares outstanding and an owner with 600 shares (60% ownership). An angel investor offers $200,000 for a 20% stake, requiring the issuance of 250 new shares. New Ownership Calculation: New Ownership = (600 × 1000) ÷ (1000 + 250) = 600000 ÷ 1250 = 48%. The owner's new ownership percentage is 48% after the investment. Example 2: A company initially has 2,000 shares, with an owner holding 1,200 shares (60%). An angel investor wants a 15% stake, leading to the issuance of 333 new shares. New Ownership Calculation: New Ownership = (1200 × 2000) ÷ (2000 + 333) = 2400000 ÷ 2333 = 102.86%. This scenario shows the importance of evaluating the number of shares issued to maintain meaningful ownership stakes. ## Limitations The calculator assumes that all shares are of equal value and does not account for preferred shares or different classes of stock that may have varying rights. It also presumes that the investment rounds occur sequentially without any interim changes in share structure. Additionally, the calculator does not factor in the potential impact of future funding rounds or changes in company valuation that may affect ownership percentages over time. Precision is limited by rounding when dealing with fractional shares, which can lead to slight inaccuracies in ownership calculations. ## FAQs **Q:** How does the calculator handle multiple funding rounds? **A:** The calculator allows users to input sequential funding rounds, adjusting total shares and ownership percentages after each round to reflect cumulative dilution. **Q:** What happens if the new investor does not take the percentage they initially request? **A:** The calculator can adjust for any changes in the percentage of ownership requested by the investor, reflecting the actual shares issued after negotiations. **Q:** Can I model a scenario where existing shareholders want to maintain their ownership percentage? **A:** Yes, users can input additional investments or adjustments to see how existing shareholders might need to invest more capital to avoid dilution. **Q:** Is it possible to visualize how ownership changes over multiple rounds? **A:** While the calculator provides numerical outputs, it does not include graphical visualizations; users can track ownership changes by noting percentages after each round. --- *Generated from [complete.tools/angel-investment-dilution-calculator](https://complete.tools/angel-investment-dilution-calculator)*