carta-conversion-calculator

What problem does it solve?

Manually calculating how SAFEs and convertible notes convert to equity during a financing round is complex, error-prone, and requires deep expertise in cap table mechanics, leading to inaccurate ownership projections and potential compliance risks for stakeholders.

Core Features & Use Cases

• Precise Conversion Math: Automatically calculates share counts for SAFEs and convertible notes using the most favorable applicable terms, including valuation caps, discount rates, and most favored nation (MFN) clauses.
• Live Data Integration: Pulls real-time data directly from Carta, including outstanding instrument details, current fully diluted share counts, and 409A valuations, to ensure calculations are based on the latest official records.
• Use Case: A startup finance lead preparing for a Series A close can use this skill to instantly model how $1.2M in outstanding SAFEs and $500K in convertible notes with accrued interest will convert at a proposed $45M pre-money valuation, including the impact on post-conversion ownership.

Quick Start

Provide your Carta corporation ID and the proposed pre-money valuation or price per share for the upcoming financing round to receive a full breakdown of all outstanding instrument conversions, per-instrument share counts, and post-conversion fully diluted share totals.