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Finance Calculators

Cost Basis Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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Verified formula Private

Cost basis per share

₹101.0000

Total cost basis
₹10,100.00

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Cost Basis Calculator

The Cost Basis Calculator works out your cost basis per share, along with 1 related figure in an instant. Enter total amount invested, fees & charges and number of shares/units and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the total amount invested.
  2. Enter the fees & charges.
  3. Enter the number of shares/units.
  4. Read off your cost basis per share, together with total cost basis — the calculator updates automatically, with no button to press.

Formula

The Cost Basis Calculator uses the formula:

Cost basis per share = (Total amount invested + Fees & charges) ÷ Number of shares ÷ units

Worked example

For example, with total amount invested of 10,000, fees & charges of 100 and number of shares/units of 100, the cost basis per share is ₹101.0000.

Inputs used
Total amount invested 10,000
Fees & charges 100
Number of shares/units 100
Results
Cost basis per share ₹101.0000
Total cost basis ₹10,100.00

Results are estimates for educational use, not professional advice.

Frequently asked questions

It is the total amount you paid for an investment, including fees, used to work out gains. 10,000 plus 100 fees over 100 shares is 101 per share.

Fees add to what you paid, so including them lowers your taxable gain when you sell.

Your capital gain is the sale proceeds minus the cost basis, so a higher basis means a lower taxable gain.

Add all amounts and fees and divide by total shares for an average cost basis per share.

The Cost Basis Calculator uses the formula: Cost basis per share = (Total amount invested + Fees & charges) ÷ Number of shares ÷ units. For example, with total amount invested of 10,000, fees & charges of 100 and number of shares/units of 100, the cost basis per share is ₹101.0000.

Enter the total amount invested. Enter the fees & charges. Enter the number of shares/units. Read off your cost basis per share, together with total cost basis — the calculator updates automatically, with no button to press.

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