SAFE Note Calculator
Approximate SAFE ownership using the better of cap or discount price.
Calculate safe note calculator from clear inputs
SAFE Note Calculator gives a focused worksheet for finance & money questions where a quick deterministic estimate is more useful than a spreadsheet. The safe note calculator fields mirror the variables in its formula, and the output separates the main result from supporting values so you can sanity-check this calculation before reusing it.
A 100000 SAFE with a 5M cap and 20 percent discount on an 8M round converts at the 5M cap.
Keep the estimate private in your browser
For SAFE Note Calculator, every calculation runs in your browser with no upload, account, cookie, live lookup, or server-side storage. The safe note calculator result is best treated as a planning number because the real-world constraints behind this estimate can change the answer. Adjust the safe note calculator assumptions and confirm important decisions against the relevant source of truth for that exact situation.
Frequently Asked Questions
How does a SAFE convert?
At the lower of the valuation cap or the priced round valuation minus the discount. A $100,000 SAFE with a $5M cap and a 20% discount on an $8M round converts at $5M, since the discounted $6.4M is higher.
How is ownership estimated?
Investment ÷ conversion valuation. $100,000 at a $5M valuation is about 2%. This is a simplification; real conversions depend on post-money versus pre-money SAFEs and the round's share math.
What does "cap beats discount by" show?
How much lower the cap is than the discounted price. At zero, the discount gives the better price; a positive number means the cap sets the conversion.
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