How to use this calculator
- Enter pre-money equity valuation, new equity investment.
- 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
Post-money = pre-money + new equity; investor percentage = investment / post-money.
Assumptions and limitations
Option-pool expansion, convertibles, preferred rights, transaction fees and secondary share sales are excluded.
Worked example
With pre-money equity valuation = 4000000, new equity investment = 1000000, post-money valuation is approximately 5000000.
What the result means
This is a simple primary-equity round, not a full cap table or company appraisal.
Common questions
How should I interpret post-money valuation?
This is a simple primary-equity round, not a full cap table or company appraisal.
What should I check before using this result?
Option-pool expansion, convertibles, preferred rights, transaction fees and secondary share sales 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.