Founder toolkit · Calculator
Equity dilution calculator
Enter today's shareholders and the round you are discussing to see everyone's share before and after. Everything is worked out in your browser; nothing you type is sent.
Reviewed 24 October 2026After the round
The investor holds 20.00% for ₹1,00,00,000, at ₹388.89 a share. The company is valued at ₹5,00,00,000 after the round.
| Holder | Before | After |
|---|---|---|
| Founder 1 | 45.00%45,000 shares | 35.00%45,000 shares |
| Founder 2 | 45.00%45,000 shares | 35.00%45,000 shares |
| Option pool | 10.00%10,000 shares | 10.00%12,857 shares |
| New investor | — | 20.00%25,714 shares |
2,857 shares are added to the option pool before the round.
Total shares after the round: 1,28,571. Figures are rounded to whole shares.
What this does not show
It models one priced round of new shares. It does not model convertible notes, SAFEs, liquidation preferences, anti-dilution terms, different classes of shares or tax, any of which can change what each holder receives. Treat the answer as a starting point for a conversation with your lawyer and chartered accountant, not as the terms of a deal.
Whether the extra option pool is created before the round, as here, or after it is a term to negotiate. Set the pool to 0 to see the round alone.