Post Money Valuation Calculator
Calculate post-money valuation after investment rounds. Determine company value after new capital injection for startups and investors.
How the Post Money Valuation Calculator works
Enter pre-money valuation and investment amount. Get post-money valuation and investor equity percentage automatically.
Startups and investors need to know company valuation after funding rounds. Post-money valuation determines investor ownership stake and dilution impact.
How it works
Tutorial
Post-money valuation is what your company is worth after investors put money in. It determines how much of your company investors get for their money.
Use the calculator above for instant results, or follow this guide to calculate manually.
The Formula
| Metric | Formula |
|---|---|
| Post-Money Valuation | Pre-Money Valuation + Investment Amount |
| Investor Ownership % | (Investment ÷ Post-Money Valuation) × 100 |
| Your Ownership % | 100% – Investor Ownership % |
| Price Per Share | Investment ÷ Shares Issued to Investors |
Step-by-Step Example
Your startup is raising a Series A round.
Step 1: Start With Pre-Money Valuation
| Detail | Amount |
|---|---|
| Pre-money valuation | $8,000,000 |
| Investment amount | $2,000,000 |
| Current shares outstanding | 8,000,000 |
Step 2: Calculate Post-Money Valuation
Post-money = Pre-money + Investment
$8,000,000 + $2,000,000 =$10,000,000
Step 3: Calculate Investor Ownership Percentage
Investor % = Investment ÷ Post-Money × 100
$2,000,000 ÷ $10,000,000 × 100 =20%
Investors will own 20% of your company.
Step 4: Calculate Your New Ownership
Before the investment, you owned 100%. After:
| Shareholder | Ownership |
|---|---|
| Existing shareholders (you) | 80% |
| New investors | 20% |
| Total | 100% |
You’ve been diluted from 100% to 80%, but your stake is worth more.
Step 5: Calculate Shares Issued
How many new shares do investors get?
If investors get 20% and there are 8,000,000 existing shares representing 80%:
New shares = (Existing shares × Investor %) ÷ (100% – Investor %)
New shares = (8,000,000 × 20) ÷ 80 =2,000,000 shares
Step 6: Calculate Price Per Share
Price per share = Investment ÷ New Shares
$2,000,000 ÷ 2,000,000 =$1.00 per share
Step 7: Calculate Share Value
| Before Investment | After Investment |
|---|---|
| 8M shares at $1.00 = $8M | 8M shares at $1.00 = $8M |
| You own: 100% = $8M | You own: 80% = $8M |
| Investors own: 20% = $2M | |
| Your stake value: $8M | Your stake value: $8M (of $10M total) |
Note:Your percentage went down (100% to 80%) but your stake value stayed the same ($8M) because the company is now worth more.
What This Means
At an $8M pre-money valuation, a $2M investment creates a $10M post-money valuation. Investors get 20% of the company for their $2M. Your ownership drops from 100% to 80%, but your stake is still worth $8M (now part of a larger $10M pie).
Key insights:
- Higher pre-money valuation = less dilution for same investment
- Dilution isn’t bad if the company becomes more valuable
- 10% of $100M is better than 100% of $1M
- Post-money valuation determines investor ownership percentage
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