SAFE Note Calculator

Model exactly how your SAFE converts at the next priced round. Compare cap and discount scenarios before you negotiate terms.

Used by founders and early investors modeling pre-seed instruments

The SAFE

$
$

The maximum valuation at which your SAFE converts. If the round values the company higher, the cap price protects you.

%

You receive shares at this % below the round price. Applies only if the discount price is lower than the cap price.

If checked, this SAFE automatically adopts better terms from any future SAFE issued before conversion. Common in pre-seed YC SAFEs.

Priced round (conversion event)

$
#

Total shares before the new round is issued. Include option pool in this number.

$

Round price = $0.8889
Cap price = $0.5556
Discounted price = $0.7111
Conversion price = $0.5556 (Cap price applies)

Based on your inputs, the Cap price applies.

Cap price bindsActive
Conversion price$0.5556
Shares received180,000
Your ownership1.57%
Effective valuation$6.35M
Savings vs round price+$60K
Discount binds
Conversion price$0.7111
Shares received140,625
Your ownership1.23%
Effective valuation$8.10M
Savings vs round price+$25K
Round price (no benefit)
Conversion price$0.8889
Shares received112,500
Your ownership0.99%
Effective valuation$10.10M
Savings vs round priceNo discount applied

Post-conversion summary

Your shares180,000
New round shares2,250,000
Total post-round shares11,430,000
Your post-round ownership1.57%
Post-money valuation$10.00M

How to use this calculator

01

Enter your SAFE terms

Input the investment amount, valuation cap, and discount rate from your SAFE agreement. The calculator works for standard YC SAFEs and most cap-equivalent structures.

02

Enter the conversion round details

Input the expected pre-money valuation, share count, and round size at the priced round where the SAFE will convert. The calculator shows all three scenarios and flags which one applies.

03

Switch between investor and founder view

Investor view shows what the SAFE holder receives. Founder view shows what the SAFE costs you in dilution and effective valuation. Both views use the same inputs.

How SAFE conversion works

Frequently asked questions

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