Post-money valuation calculator

Post-money valuation is what the company is worth just after the investment: pre-money valuation plus the new money, in a simple priced round.

The formula

Post-money valuation = pre-money valuation + new investment

Worked example: £1,000,000

The example uses the guide's seed round, £200,000 for 20%, with a matching cap table, exit, fund and market.

  1. £800,000 + £200,000 = £1,000,000

Try it with your numbers

Work out your post-money valuation

Until you type a figure, the results show an example business. Fill in only what you know: from then on every result uses your figures alone, and nothing you type leaves your browser.

Your deal numbers

Start with any one figure. Until you do, the results show the example business, whose figures are the grey hints in each box.

What this calculation uses

You can type 2m or 750k.

Add more of your numbers

Open a group to fill it in. Everything you add shows up in the list below the calculator.

An investment offer
Your round

In shares. 0 if you have none.

Money converting at the round

From an ASA, SAFE or loan note.

Leave blank for no cap.

A sale of the company
Preference multiple
An investor's return

30 means later rounds shrink that share by 30%.

The next round
A venture fund
Your market
A SEIS, EIS or VCT investment
Shares that vest

Post-money valuation for the example

Example

£1,000,000

  1. £800,000 + £200,000 = £1,000,000

Formula: Pre-money valuation + new investment.

Investor's share
20.0%

Everything your numbers show

For the example business: 27 of 27. Type your own figures to replace them. Select one for its page.

How to read your result

The investor's share is the investment divided by the post-money, and that sum decides how much of the company you sell.

Watch out for

Some SAFEs convert on a post-money basis, which can dilute founders more than they expect.

Last checked . Estimates only, not financial, tax or legal advice: check your accounts and documents, and take advice before you act. More terms in the startup glossary.

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