How much can you win on Polymarket?

It depends on the price you pay. A share costs its price and pays $1 if you are right, so $100 at 25¢ returns $400 and $100 at 80¢ returns $125, before fees. Cheaper shares pay more because the market thinks they are less likely. You cannot win more than $1 per share, and you cannot lose more than you paid.

How is a Polymarket payout calculated?

Payout = amount ÷ price. Put $100 on an outcome priced at 40¢ and you get 250 shares, which pay $250 if the outcome happens. Your profit is the payout minus what you paid, which is the amount plus any taker fee. The calculator above does the sums and also shows the break-even win rate.

What does 40¢ mean on Polymarket?

It is both the cost of one share and the market's chance: the market gives the outcome about a 40% chance. In bookmaker language 40¢ is +150 in American odds and 2.50 in decimal odds, so $100 returns $250 including your stake.

Do I lose my whole stake if I am wrong?

Yes. Shares in an outcome that does not happen are worth $0, so you lose the amount you put in, plus the fee if you paid one. You can sell your shares before the result at the current price, which is how people cut a loss or lock in a gain, but the price may be lower than what you paid.

Does Polymarket take a fee from my winnings?

Polymarket's fee page describes a taker fee applied when an order matches, calculated from the number of shares and the price (shares × fee rate × price × (1 − price)). Limit orders that wait for someone else to trade with them, called maker orders, pay no fee. Polymarket does not charge to deposit or withdraw USDC, although services such as card providers may. Our fees guide has the details and the date we last checked.

Can I sell before the event ends?

Yes. You can sell your shares at any time at the price the market offers, so you do not have to wait for the result. Selling at once is a taker trade, so the same fee formula applies to the sale. A limit order to sell waits for a buyer and pays no fee.

Is this calculator exact?

It uses the published fee formula and assumes your whole order fills at one price. In real markets a large order can move the price and the gap between the buy and sell price (the spread) also costs something, so Polymarket's own order screen is the final word. Use this to size up a trade, not to promise yourself a result.

Can I use Polymarket where I live?

Not everywhere. polymarket.com is closed to new trades in many countries, including the United States, which has a separate regulated app. Check our availability page before you deposit, and do not use a VPN to get around a block.

Polymarket Calculator: How Much Will You Win?

By WhaleSays Editorial · Updated November 3, 2026 · 6 min read

A Polymarket share pays $1 if you are right and $0 if you are wrong, so what you win depends on the price you pay. At 40¢, $100 buys 250 shares and returns $250 if you win, a profit of about $147 after the sports taker fee. If you are wrong you lose the $103 you paid.

WhaleSays is independent and not affiliated with Polymarket. Our Polymarket sign-up links are affiliate links: we may receive a share of the trading fees you pay, and you pay nothing extra. See the affiliate disclosure. This page is information, not financial or legal advice.

Calculate your payout

How much do you put in?

Price per share

The price is the market's chance in cents: 40¢ means the market says 40%. A share costs the price and pays $1 if you are right.

Market type

How you buy

Start from a live market

Live prices as of 18:19 UTC, 3 Nov 2026; they move all the time. We guess the market type from the market's tags, so check the fee on the market itself.

If you are right

You get $116.96 back

That is a profit of $16.23, or +16% on the $100.73 you pay.

If you are wrong, you lose the $100 you put in, plus the $0.73 fee ($100.73 in all).

Shares you get: 116.96
Fee: $0.73
Market’s chance (implied probability): 85.5%
Break-even win rate: 86.1%
American odds (what a bookmaker would show): −590
Decimal odds: 1.17

These numbers are for Galatasaray SK to win in Galatasaray SK vs. VfB Stuttgart.

Trade this

Sums assume the order fills at this price and that you hold to the result. The fee is charged on top of the amount you enter, using a fee rate of 0.05 for sports markets (checked 25 October 2026). Polymarket can change rates at any time. You can lose everything you trade.

A share price is not a promise. If you buy and the outcome does not happen, you lose what you paid, plus any fee. Only trade money you can afford to lose; see trading responsibly. These tools do maths on prices you enter. They are not financial advice and not a prediction.

Want to try it with real money?

Opening a Polymarket account takes a few minutes, and you can start with a small deposit. WhaleSays is independent; signing up through our link costs you nothing extra.

How to make your first trade · Where Polymarket is open

Start trading on PolymarketAffiliate link · 18+ · trading involves risk

What $100 would return on today's markets

These are real, busy Polymarket markets at the last update (18:19 UTC, 3 Nov 2026). Each row shows the leading outcome, its price, the same price as American odds, and what $100 would return if that outcome wins. Prices move all the time, so open the market for the live number.

Galatasaray SK to win
Galatasaray SK vs. VfB Stuttgart
Price
85.5¢
American
−590
$100 returns
$116.96
Trade this on Polymarket (affiliate link)
Democrats Sweep
Balance of Power: 2026 Midterms
Price
73.5¢
American
−277
$100 returns
$136.05
Trade this on Polymarket (affiliate link)
Reach $78,000
What price will Bitcoin hit on November 3
Price
79¢
American
−376
$100 returns
$126.58
Trade this on Polymarket (affiliate link)
25 bps increase
Fed Decision in December
Price
73.5¢
American
−277
$100 returns
$136.05
Trade this on Polymarket (affiliate link)

How a Polymarket payout works

Every Polymarket market is a question with two or more possible outcomes, and each outcome has shares. A share costs between 1¢ and 99¢ and pays exactly $1 if that outcome happens, and nothing if it does not. The price is also the market's chance of the outcome, called its implied probability: a 40¢ share means the market thinks there is about a 40% chance.

So your payout is a short sum. Divide the amount you put in by the price to get your shares. Each winning share pays $1. Put $100 on a 40¢ outcome and you get 250 shares. If the outcome happens they pay $250, a profit of $150 before fees. If it does not, they are worth $0 and the $100 is gone.

Lower prices pay more because they are less likely. A 10¢ outcome returns $1,000 per $100, and a 90¢ outcome returns about $111.11. The calculator also prints the American and decimal odds for the same price (+150 and 2.50 at 40¢), which is how a bookmaker would write a bet with that chance.

Payout per $100 at every price

Here is $100 at each price from 10¢ to 90¢ in a sports market, where a taker (someone whose order fills at once) pays a fee rate of 0.05. “Profit” is before the fee and “profit after fee” is what you keep if you win. A limit order that waits to be filled pays no fee.

Payout, profit, fee and odds for $100 at prices from 10 to 90 cents
Price	$100 returns	Profit	Taker fee	Profit after fee	American odds	Decimal odds
10¢	$1,000	+$900	$4.50	+$895.50	+900	10.00
20¢	$500	+$400	$4.00	+$396.00	+400	5.00
30¢	$333.33	+$233.33	$3.50	+$229.83	+233	3.33
40¢	$250	+$150	$3.00	+$147.00	+150	2.50
50¢	$200	+$100	$2.50	+$97.50	+100	2.00
60¢	$166.67	+$66.67	$2.00	+$64.67	−150	1.67
70¢	$142.86	+$42.86	$1.50	+$41.36	−233	1.43
80¢	$125	+$25	$1.00	+$24.00	−400	1.25
90¢	$111.11	+$11.11	$0.50	+$10.61	−900	1.11

Selling before the result: cashing out

You do not have to wait for the final whistle. Shares trade all day, so you can sell them at the current price whenever you like. Say you buy $100 at 40¢ and get 250 shares, paying $103 with the fee.

The price rises to 60¢. Your shares are now worth $150. Selling at once is a taker trade too, so the fee on the sale is $3.00 and you receive $147. That is a profit of $44, and you keep it whatever happens next. A limit order to sell at 60¢ would pay no fee, but it may not fill.
The price falls to 20¢. Your shares are worth $50. After a $2.00 fee you receive $48, a loss of $55 instead of the whole $103.

Selling early is how traders lock in a gain or cut a loss. The catch is the spread, the gap between the price buyers will pay and the price sellers ask. In a quiet market it can be wide, so you may get a little less than the price on the chart.

What happens if you lose

If the outcome you bought does not happen, your shares settle at $0. You lose the amount you put in plus any taker fee you paid, here $103on a $100 trade at 40¢. You cannot lose more than that, because a share is never worth less than $0 and you paid for all of them up front.

Over many trades the maths works like this. At 40¢ plus the fee you pay about $41.20 of every $100 of payout, so you need to be right about 41.2% of the time just to break even. That figure is the break-even win rate. The calculator shows it for any price. If you think the true chance is higher than the break-even rate, the trade has an edge in your view, and if you are only guessing, the fee makes the price slightly worse than fair.

Fees in one paragraph

On most markets Polymarket charges takers a fee of shares × fee rate × price × (1 − price). The rate is 0.05 for sports, 0.04 for politics, 0.07 for crypto and 0 for geopolitics, and the fee is biggest near 50¢. On $100 at 50¢ in a sports market that is $2.50, or 2.5% of the trade. Maker orders that wait to be filled pay nothing: the same 40¢ trade as a limit order has a profit of $150 instead of $147. Read Polymarket fees explained for rates by category and rebates, or work out any trade with the Polymarket fee calculator.

Polymarket price vs a sportsbook bet

A bookmaker would price the same bet as odds: 40¢ is +150 in American odds and 2.50 in decimal. A $100 bet at +150 returns $250 including your stake, exactly what $100 returns at 40¢ before the fee. The two differ in how you pay. A bookmaker builds its margin, the vig, into the odds, so you never see a fee. Polymarket shows its cost as a taker fee and a spread instead, and charges nothing to makers.

Neither is cheaper everywhere, so compare the all-in price of the exact bet. The Polymarket odds converter turns a bookmaker line into a Polymarket price and removes the bookmaker's margin, and our Polymarket vs sportsbooks guide compares fees, limits and availability.

How to place the trade in three steps

Check your country. Polymarket restricts new trades in many places. The availability page gives a plain answer by country.
Open an account and add money. The first-trade guide walks through sign-up and your first deposit, and you can start with a small amount.
Pick a market, check the price and the fee, then buy. Read the resolution rules, choose a buy now or a limit order, and confirm the price shown on Polymarket before you trade.

Start small. A $20 trade is enough to learn how the order screen, the fee and the sell button work. The guide to how Polymarket odds work explains prices and spreads in more depth.

Frequently asked questions

How much can you win on Polymarket?: It depends on the price you pay. A share costs its price and pays $1 if you are right, so $100 at 25¢ returns $400 and $100 at 80¢ returns $125, before fees. Cheaper shares pay more because the market thinks they are less likely. You cannot win more than $1 per share, and you cannot lose more than you paid.
How is a Polymarket payout calculated?: Payout = amount ÷ price. Put $100 on an outcome priced at 40¢ and you get 250 shares, which pay $250 if the outcome happens. Your profit is the payout minus what you paid, which is the amount plus any taker fee. The calculator above does the sums and also shows the break-even win rate.
What does 40¢ mean on Polymarket?: It is both the cost of one share and the market's chance: the market gives the outcome about a 40% chance. In bookmaker language 40¢ is +150 in American odds and 2.50 in decimal odds, so $100 returns $250 including your stake.
Do I lose my whole stake if I am wrong?: Yes. Shares in an outcome that does not happen are worth $0, so you lose the amount you put in, plus the fee if you paid one. You can sell your shares before the result at the current price, which is how people cut a loss or lock in a gain, but the price may be lower than what you paid.
Does Polymarket take a fee from my winnings?: Polymarket's fee page describes a taker fee applied when an order matches, calculated from the number of shares and the price (shares × fee rate × price × (1 − price)). Limit orders that wait for someone else to trade with them, called maker orders, pay no fee. Polymarket does not charge to deposit or withdraw USDC, although services such as card providers may. Our fees guide has the details and the date we last checked.
Can I sell before the event ends?: Yes. You can sell your shares at any time at the price the market offers, so you do not have to wait for the result. Selling at once is a taker trade, so the same fee formula applies to the sale. A limit order to sell waits for a buyer and pays no fee.
Is this calculator exact?: It uses the published fee formula and assumes your whole order fills at one price. In real markets a large order can move the price and the gap between the buy and sell price (the spread) also costs something, so Polymarket's own order screen is the final word. Use this to size up a trade, not to promise yourself a result.
Can I use Polymarket where I live?: Not everywhere. polymarket.com is closed to new trades in many countries, including the United States, which has a separate regulated app. Check our availability page before you deposit, and do not use a VPN to get around a block.