Finance / CALCULATOR

Pre- and Post-Money Ownership

Pre- and Post-Money Ownership: a supplied-input model with explicit assumptions and a worked example.

Runs on your deviceUpdates as you typeFormula & example ↓
01

Your inputs

Adjust the values to explore a different result.

Enter pre-money equity valuation.
Enter new primary investment.

Formula

post-money=pre-money+investment; investor ownership=investment/post-money.
  • Use the units shown beside each field.
  • Results update automatically whenever you change an input.
  • Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
  • Simple priced primary equity round. Options, convertible instruments, secondary sales and dilution preferences are excluded.

Example Calculation

Example inputs
  • Pre-money equity valuation: 4000000
  • New primary investment: 1000000

Pre-money equity valuation = 4000000; New primary investment = 1000000. The primary result is 5000000.

Frequently asked questions

How do I use this calculator?

Enter pre-money equity valuation, new primary investment. The result updates automatically. Use Reset to restore the example values.

What method does it use?

post-money=pre-money+investment; investor ownership=investment/post-money.. Simple priced primary equity round. Options, convertible instruments, secondary sales and dilution preferences are excluded.

Why might a rounded result differ?

The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.

Are my inputs saved online?

No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.

Check the assumptions and units before using this result. Read about calculation methods.