Convertible Note Calculator
A convertible note is a loan that turns into equity. Interest accrues until the next priced round, then principal plus interest converts at the cap or discount price.
Your numbers
RESULT
Noteholder ownership after round
6.95%
Amount converting
$560K
incl. 60.0K interest
- Shares issued
- 933,333
- Conversion pricevaluation cap applies
- $0.6
- Round price per share
- $1.2
- Value at round price ÷ principal
- 2.24×
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Get matched with Fund Force →The formula, in plain English
- Principal at conversion = P × (1 + r × t)
- Conversion price = MIN(Cap ÷ Pre-round shares, Round price × (1 − Discount))
- Shares = Principal at conversion ÷ Conversion price
Frequently asked questions
Is interest on a convertible note paid in cash?
Usually not — it accrues and converts into shares along with the principal.
What happens at the maturity date?
If no round has happened, the note is technically due. In practice noteholders usually extend, convert at an agreed price, or (rarely) demand repayment.
Note or SAFE?
SAFEs are simpler (no interest, no maturity). Notes are more common where local law or investors prefer debt instruments.
Results are estimates for planning and education — not financial, legal or tax advice.
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