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Financial Planning

Stock Profit and Loss Calculator

Work out profit or loss on a stock trade after buy and sell commissions, the return on cost and your break-even sell price.

Your inputs

Results

Net profit / loss

$1,490.00

Return on cost
29.77%
Total cost (incl. commission)
$5,005.00
Net sale proceeds
$6,495.00
Break-even sell price
$50.1000

✓Exact calculation — rounded only for display

Inputs are never added to links for financial, salary or health calculators.

What this calculator does

Trading costs eat into returns, especially for small positions. Enter the shares, prices and commissions to see the true outcome of a trade.

Formula and method

Cost = shares × buy price + buy commission; Proceeds = shares × sell price − sell commission Profit = proceeds − cost; Break-even price = (cost + sell commission) ÷ shares

Worked example

Calculated by this tool with its default inputs:

Inputs

  • Number of shares: 100
  • Buy price per share: 50 (any currency)
  • Sell price per share: 65 (any currency)
  • Buy commission: 5 (any currency)
  • Sell commission: 5 (any currency)

Results

  • Net profit / loss: 1,490
  • Return on cost: 29.77%
  • Total cost (incl. commission): 5,005
  • Net sale proceeds: 6,495
  • Break-even sell price: 50.1

How to read the results

The break-even sell price is the minimum price at which the trade does not lose money after both commissions.

Assumptions and limitations

  • Taxes, currency conversion and spreads are not included.

Financial results are estimates based on the inputs and assumptions shown. They are not financial advice; confirm figures with your lender, provider or a qualified adviser before making decisions.

Questions

Does this handle short selling?

Not directly; for a short, swap the roles of buy and sell prices.

Methodology and verification

Result type
Exact mathematical calculation (rounded only for display)
Formula version
1.0
Automated verification
3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
Editorial review
Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.

Privacy

Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Because this calculator can involve personal financial or health details, your inputs are never added to share links or saved to history. Privacy policy