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Pre & Post Money Valuation Calculator

Calculate startup valuations, investor equity, and dilution for funding rounds

Valuation Calculator

Calculation Method

Investment Parameters

Total amount being invested by the investor

Percentage of company equity the investor will own

Company valuation before the investment

Company valuation after the investment

Valuation Results

$475,000
Pre-Money Valuation
Before Investment
$500,000
Post-Money Valuation
After Investment
$25,000
Investment Amount
5.0%
Investor Equity
95.0%
Founder Equity
Key Formula: Post-Money Valuation = Pre-Money Valuation + Investment
Equity Formula: Investor Equity % = Investment ÷ Post-Money Valuation × 100

Detailed Analysis

Equity Distribution

Investor Ownership:5.0%
Founder Ownership:95.0%
Dilution Percentage:5.0%
Assessment:Minimal Dilution

Valuation Metrics

Valuation Increase:5.3%
Investment/Pre-Money:5.3%
Price per 1% Equity:$5,000
ROI at 10x Exit:$250,000

Investment Analysis & Recommendations

Very low dilution - favorable terms for founders
Consider if investment amount is sufficient for growth needs
Small investment size - suitable for early validation or pre-seed
Early-stage valuation - focus on product-market fit

Example: Startup Accelerator Investment

Investment Scenario

Startup: Cloud storage for goat pictures

Investment Amount: $25,000

Investor Equity: 5%

Investor: ACME Venture Capital

Calculation Results

Pre-Money Valuation: $25,000 ÷ 5% - $25,000 = $475,000

Post-Money Valuation: $475,000 + $25,000 = $500,000

Founder Ownership: 95% (minimal dilution)

Assessment: Excellent terms with minimal dilution for founders

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Dilution Guidelines

Minimal Dilution (≤5%)

✓ Founder-friendly terms
✓ Typical for accelerators
✓ Minimal control loss

Moderate Dilution (5-15%)

✓ Standard seed funding
✓ Reasonable for early stage
✓ Good investor involvement

Standard Dilution (15-25%)

⚠ Typical Series A
⚠ Significant investor input
⚠ Board seat likely

High Dilution (25%+)

⚠ Major control shift
⚠ Later-stage rounds
⚠ Carefully evaluate terms

Key Concepts

Pre-money = company value before investment

Post-money = pre-money + investment amount

Equity % = investment ÷ post-money × 100

Higher pre-money = less dilution for founders

Consider voting rights and board seats

Plan for future funding rounds

Understanding Pre and Post Money Valuations

What are Pre & Post Money Valuations?

  • Pre-Money: Company value before new investment
  • Post-Money: Company value after investment is added
  • Purpose: Determine investor equity percentage
  • Impact: Affects founder dilution and control

Key Considerations

  • Dilution: How much founder ownership decreases
  • Control: Voting rights and board composition
  • Future Rounds: Impact on subsequent fundraising
  • Valuation: Market comparable and growth potential

Formula & Calculation

Basic Formulas:
Post-Money = Pre-Money + Investment
Investor Equity % = Investment ÷ Post-Money × 100

Example:
Pre-Money: $475,000
Investment: $25,000
Post-Money: $500,000
Investor Equity: 5%

Strategic Benefits

  • Clear equity distribution calculation
  • Facilitates investment negotiations
  • Enables comparison of funding options
  • Plans for future funding rounds
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