Y Combinator Post-Money SAFE Calculator

Understand how a Y Combinator style post-money SAFE converts during an equity financing round. This calculator shows the formulas used for each calculation to help you understand the mechanics.

SAFE Parameters

Enter the details of your SAFE investment

SAFE Investment Amount ($)

Valuation Cap ($)

Include Discount

Discount Rate (%)

Future Financing Round

Pre-Money Valuation ($)

New Money Raised ($)

Option Pool Size (%)

Conversion Results

See how your SAFE converts in the financing round

Post-Money Valuation:

Formula: Pre-Money Valuation + New Money Raised

Effective Valuation:

Formula: If Post-Money ≤ Cap, then Discounted Post-Money; Otherwise, Min(Cap, Discounted Post-Money)

Ownership Breakdown

SAFE Investor:

0.00%

Formula: SAFE Amount ÷ Effective Valuation

New Investors:

0.00%

Formula: New Money Raised ÷ Post-Money Valuation

Option Pool:

0.00%

Formula: Option Pool Size (%)

Founders:

0.00%

Formula: 100% - SAFE% - New Investors% - Option Pool%

SAFE

New Investors

Option Pool

Founders