Polymarket Profit Calculator
Know your potential profits before you trade. Calculate returns, ROI, and break-even points instantly.
Profit Calculator
Calculate your potential returns before trading
If Your Prediction is Correct:
How to Use the Calculator
Investment Amount
Enter how much USDC you plan to spend on shares. Start small while learning.
Share Price (Current Odds)
Enter the current price of YES or NO shares. Found in the Polymarket order book.
Shares Received
Calculator shows how many shares you'll get. Shares = Investment / Share Price.
Potential Profit
If correct: (Shares × $1.00) - Investment. This is your maximum profit.
ROI Percentage
Return on Investment = Profit / Investment × 100%. Higher is better.
Break-Even Probability
The win rate needed to profit long-term. Always compare to your confidence level.
Calculator FAQs
Does the calculator include fees?▼
This basic calculator shows gross profit. Actual results may be slightly lower due to Polymarket's small trading fees and network gas costs.
What if I sell before resolution?▼
The calculator assumes holding to resolution. If you sell early, your profit/loss depends on the exit price.
Why is lower share price better?▼
Lower prices mean higher potential returns. A $0.20 share pays 5x ($1.00) if correct, while a $0.80 share only pays 1.25x.
What's a good ROI?▼
It depends on the probability. A 50% ROI on a 60% likely event is good. The same ROI on a 20% likely event is risky.
How accurate is the calculator?▼
The math is exact. However, real trading involves slippage, fees, and execution timing that may affect actual results.
Can I calculate partial positions?▼
Yes! Enter any amount you want. The calculator works for any investment size.