Stock Split Calculator

Calculate stock split impact: enter shares, price and split ratio to see new shares, new price and value unchanged.

Stock Split Calculator

Calculate stock split impact: enter shares, price and split ratio to see new shares, new price and value unchanged.

Shares owned

Price per share($)

Split ratio (e.g. 2 for 2:1)

Enter values above and click Calculate — results will appear here with the formula explained.

New shares = shares*ratio; New price = price/ratio; Value unchanged

How does this work?

Stock split multiplies shares and divides price by ratio, value unchanged. 2:1 double shares, half price. 3:2 is 1.5× shares.

This is cosmetic, not value. Options and cost basis adjust similarly.

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Disclaimer: Results are estimates for informational purposes only and do not constitute professional financial advice. Consult a qualified professional for decisions.

What is Stock Split?

Stock split multiplies shares and divides price by ratio, value unchanged. 2:1 double shares, half price. 3:2 is 1.5× shares. Formula: New shares = shares*ratio; New price = price/ratio; Value unchanged

Quick Answer

Stock Split Calculator computes calculate stock split impact: enter shares, price and split ratio to see new shares, new price and value unchanged. Formula: New shares = shares*ratio. Example: With 100 shares at $500, 2:1 split: 200 shares at $250, value $50k unchanged.

What it does: Calculate stock split impact: enter shares, price and split ratio to see new shares, new price and value unchanged.
Formula: New shares = shares*ratio; New price = price/ratio; Value unchanged
Inputs: Shares owned · Price per share ($) · Split ratio (e.g. 2 for 2:1)
Example: With 100 shares at $500, 2:1 split: 200 shares at $250, value $50k unchanged.

Calculator Inputs at a Glance

Field	What to enter
Shares owned	e.g. 100
Price per share ($)	e.g. 500
Split ratio (e.g. 2 for 2:1)	e.g. 2

All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.

How to Use This Calculator

1Enter shares owned, price per share and split ratio (2 for 2:1, 1.5 for 3:2).
2Calculate to see new shares, price and value.
3Value stays same: 100*500=$50k =200*250.

Formula Used

New shares = shares*ratio; New price = price/ratio; Value unchanged

Stock split multiplies shares and divides price by ratio, value unchanged. 2:1 double shares, half price. 3:2 is 1.5× shares.

This is cosmetic, not value. Options and cost basis adjust similarly.

AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID

728×90 — AdSense

Worked Example

With 100 shares at $500, 2:1 split: 200 shares at $250, value $50k unchanged.

AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID

728×90 — AdSense

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Frequently Asked Questions

QWhy split?

To lower price, increase liquidity and accessibility. Value same.

QReverse split?

Opposite: 1:10 reduces shares, raises price, often for low-price stocks.

QTax?

Not taxable, cost basis per share adjusts proportionally.

Quick Answer

What it does: Calculate stock split impact: enter shares, price and split ratio to see new shares, new price and value unchanged.

Formula: New shares = shares*ratio; New price = price/ratio; Value unchanged

Inputs: Shares owned · Price per share ($) · Split ratio (e.g. 2 for 2:1)

Example: With 100 shares at $500, 2:1 split: 200 shares at $250, value $50k unchanged.

Field

What to enter

Shares owned

e.g. 100

Price per share ($)

e.g. 500

Split ratio (e.g. 2 for 2:1)

e.g. 2