Stock Split Calculator
Calculate your new share count and price per share after a stock split or reverse stock split.
See how splits affect your holdings.
A stock split changes the number of shares you own and the price per share, but your total investment value stays the same.
Forward split (e.g., 2:1, 3:1, 4:1):
New Shares = Current Shares × Split Ratio
New Price = Current Price / Split Ratio
Reverse split (e.g., 1:5, 1:10):
New Shares = Current Shares / Reverse Ratio
New Price = Current Price × Reverse Ratio
Common split ratios:
- 2-for-1: Each share becomes 2 shares at half the price
- 3-for-1: Each share becomes 3 shares at one-third the price
- 4-for-1: Each share becomes 4 shares at one-quarter the price
- 10-for-1: Each share becomes 10 shares at one-tenth the price
Key point: Splits do NOT change your total investment value. If you own 100 shares at $200 ($20,000 total), a 2:1 split gives you 200 shares at $100 ($20,000 total).
Why companies split: To make shares more affordable and increase liquidity. Reverse splits are used to raise share price above exchange listing requirements.