Pre-Money and Post-Money Valuation Calculator
Enter your pre-money valuation and the amount you are raising. The calculator adds them to get the post-money valuation and shows how the round splits ownership between the existing shareholders and the new investors.
How to use it
There are three fields. Pre-money valuation is what the company is worth before the new money comes in. Investment amount is the size of the round. Post-money valuation is the sum of the two. If you change the pre-money or post-money figure, the calculator keeps the investment fixed and updates the other valuation. If you change the investment, it keeps the pre-money fixed. The -10% and +10% buttons let you test a small move either way.
How to read the result
The new investors’ share is the investment divided by the post-money valuation. The existing shareholders keep the pre-money valuation divided by the post-money valuation.
Example: €1 million at a €4 million pre-money valuation
A startup raises €1 million at a €4 million pre-money valuation. The post-money valuation is €5 million. The investors own €1M ÷ €5M = 20%, and the existing shareholders keep 80%. At a €3 million pre-money valuation, the same €1 million buys 25%.
The calculator takes your pre-money valuation as given. To get a figure you can defend in a negotiation, start a free valuation with Equidam.