New stock price
—
Price per share after the split
Corporate action
Stock Split Calculator.
Enter your shares, the share price, and the split ratio to see the new price and your revised share count.
Additional shares
—
Shares gained from the split
Total shares
—
Shares held after the split
Holding value
—
A split does not change what the holding is worth
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Stock Split Calculator
When a company splits its stock, it divides each existing share into several smaller ones. You end up holding more shares at a lower price each, and the value of your position is unchanged. This page works out all three numbers at once — the new stock price, the additional shares credited to you, and your total shares after the split.
Inputs this calculator uses
- Number of shares — the quantity you hold before the split.
- Share price — the market price of one share before the split, in ₹.
-
Stock split ratio — two values entered as
new : held. Enter 2 : 1 for a two-for-one split, or 1 : 10 for a reverse split.
How the stock split formulas work
Write the ratio as new : held. The share count scales up by that ratio and the price
scales down by its inverse:
Total shares = shares × (new ÷ held)
and
New price = old price × (held ÷ new).
The additional shares are simply the difference between the total and what you started with.
Because one factor rises exactly as much as the other falls, shares × price — your holding
value — comes out the same on both sides of the split.
Worked example
You hold 100 shares priced at ₹1,000, and the company announces a 2 : 1 split. Your shares double to 200, so you are credited 100 additional shares, and the price halves to ₹500. Both before and after, the holding is worth ₹1,00,000.
Reverse splits
A reverse split runs the same arithmetic backwards. At 1 : 10, every ten shares become one: 100 shares become 10, the additional shares figure shows −90, and a ₹1,000 share becomes ₹10,000. Companies use reverse splits to lift a very low share price, often to meet an exchange listing requirement.
Reading the result
A split changes nothing about the business — only how the same ownership is divided up. Treat the lower post-split price as a re-denomination, not a discount. Uneven ratios such as 3 : 2 can leave a fractional entitlement, which companies usually settle in cash rather than crediting part of a share.
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Check the payout on a stock you hold with the dividend yield calculator, project a one-time investment using the lumpsum calculator, or plan regular contributions with the SIP calculator.
FAQ
Stock split calculator FAQs
What is a stock split?
A stock split divides each existing share into a larger number of shares. The company issues more shares to every holder and cuts the price per share in the same proportion, so the total value of your holding does not change. Splits are usually done to make a high-priced share more affordable and more liquid.
How do I read a split ratio like 2 : 1?
A 2 : 1 split means two new shares are issued for every one share held. If you own 100 shares, you end up with 200, and a ₹1,000 share becomes ₹500. Enter 2 in the first box and 1 in the second.
How is the new share price calculated?
New share price = old price × (shares held ÷ new shares issued). For a 2 : 1 split that is old price × 1/2, so the price halves. The share count moves the other way: total shares = shares held × (new shares ÷ shares held in the ratio).
What is a reverse stock split?
A reverse split consolidates shares instead of dividing them — a 1 : 10 reverse split turns every 10 shares into 1 and multiplies the price tenfold. Enter 1 and 10 in the ratio boxes. The additional shares figure will be negative, because your share count falls.
Does a stock split change the value of my investment?
No. Immediately after the split your holding is worth exactly what it was worth before — more shares at a proportionally lower price. That is why the holding value shown here stays the same. Any price movement afterwards is ordinary market activity, not the split.
How is a stock split different from a bonus issue?
A split reduces the face value of each share and divides existing shares. A bonus issue keeps the face value and issues free additional shares out of the company reserves. The effect on your share count and price is similar, but the accounting and tax cost basis treatment differ.
What happens to fractional shares in a split?
Uneven ratios such as 3 : 2 can leave a fractional entitlement. In India, companies typically consolidate the fractions and pay out the cash value rather than crediting part of a share. This calculator shows the arithmetic result, including any fraction.
Is a stock split taxable in India?
The split itself is not a taxable event. Your cost of acquisition is spread across the larger number of shares, and the original purchase date is retained for deciding whether the eventual gain is short term or long term.