Quick Calculator
SAFE Impact Preview
Estimate the basic ownership impact of a single SAFE investment using only the investment amount and valuation cap.
This is a light preview tool only. It is designed to give founders a rough sense of dilution from one SAFE. It does not include discounts, priced-round share price mechanics or complex waterfall logic.
SAFE Inputs
Use the amount invested on the SAFE.
Use the SAFE valuation cap written into the instrument.
Please enter both the investment amount and valuation cap before calculating.
Implied SAFE Ownership
0%
This is the rough ownership the SAFE represents using only the investment amount and valuation cap.
Founder Ownership After SAFE
0%
This assumes founders owned 100% before the SAFE for basic preview purposes.
Dilution Preview
0%
This is the rough founder dilution implied by the SAFE alone.
SAFE Interpretation
What the Preview Is Showing
What Founders Should Watch
SAFE Impact Preview
What it is
The SAFE Impact Preview shows how SAFEs affect ownership after conversion.
What this tool does
It models dilution from multiple SAFE instruments.
How it works
Conversion scenarios are applied across different valuation outcomes.
Why it matters
Stacked SAFEs can create unexpected dilution at priced rounds.
## How this tool fits into your capital strategy
SAFE instruments can stack over time, creating significant dilution when they convert simultaneously.
To understand how SAFEs affect ownership and cap table outcomes, explore:
- Startup Financing Instruments & Capital Structures
These guides explain how multiple instruments interact and impact founder equity over time.