Stock Profit Calculator
Before you hit sell, know your real profit after fees. This tool does the full sum.
Buy price, sell price, shares and fees in. Net gain and return out.
Remember tax may take a slice of gains when you file. Keep a note of your costs for that day.
How to use this tool
- 1Sell price minus buy price, times shares, gives gross profit.
- 2Fees come off the top for the net sum.
- 3Net profit against your cost gives the return percent.
The math behind it
Profit = (sell price - buy price) x shares
Buy 20 shares at 50 and sell at 62.
That is 12 a share times 20, so 240 of profit before fees.
Who this tool is for
I watch which tools folk open most, and this one gets used by the same kinds of people again and again. If any of these sound like you, you are in the right place.
- Traders checking a position before selling
- Folk comparing two trades with different fees
- Investors tallying a full win with dividends
My first winning trade felt like proof I was a natural. My first fee statement felt like proof I was not. Fees and tax turn a good story in to a modest one, fast. This tool shows the modest truth, which is the only kind that helps you size the next bet.
Tips from me
- Count fees and tax in the full cost box. They trim real gains.
- Type the total you paid, not just the share price. Fees live in there.
- A gain is paper until you sell. Plans beat feels at sell time.
Mistakes I see with this sum
These are the three slips I made my self or watch folk make most. Skip them and your number will be closer to the truth on the first try.
- 1Sizing trades so fees eat the gain. Small trades pay big fee shares.
- 2Forgetting the tax slice on the gain. The keep row is the honest one.
- 3Judging a trade on vibes. Run the sum, then judge.
Two words worth knowing
Break even price
The sell price where you get out even after fees.
Cost basis
What you paid, used for the tax sum later.
That is the whole page. The tool does the math, and the words above give it a shape. If a number still looks odd, change an input and watch what moves. Playing with the boxes taught me more than any guide did.
Common questions
+Do fees really matter?
On small trades they can eat a big bite. A 10 dollar fee on a 100 dollar gain is 10 percent gone.
+Do I pay tax on stock gains?
In most places, yes, when you sell at a gain. Rules differ a lot, so check your local tax office.
+Does it include dividends?
No, this is the price move only. Use my dividend calculator for the payout side.
+How is the gain taxed?
Most places tax gains at sale, with rates that depend on how long you held. Check your local rule.
+What if I sold at a loss?
The tool shows it as negative. Losses can offset gains in many tax systems, which softens the blow.