How to use this calculator
- Enter note principal, accrued interest converting, new round price per share, valuation cap, pre-round fully diluted shares, conversion discount (%).
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Assumptions and limitations
Assumes a simple pre-money cap with supplied capitalization; SAFE post-money, option-pool changes and legal-document specifics are excluded.
Worked example
With note principal = 100000, accrued interest converting = 10000, new round price per share = 2, valuation cap = 1000000, pre-round fully diluted shares = 1000000, conversion discount (%) = 20, conversion price is approximately 1.
What the result means
The investor receives the lower modeled conversion price.
Common questions
How should I interpret conversion price?
The investor receives the lower modeled conversion price.
What should I check before using this result?
Assumes a simple pre-money cap with supplied capitalization; SAFE post-money, option-pool changes and legal-document specifics are excluded.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.