The PLO Mentor Equity Calculator computes preflop and postflop equities for 4-card and 5-card Pot-Limit Omaha. Compare exact hands or full ranges, add multiple players and analyse the board without sending the hand to an external server.

4-card and 5-card Omaha equity
Hand values change substantially when a fifth hole card is added. The calculator supports both formats so you can study the game you actually play rather than relying on a generic Hold’em tool.
Exact hands or complete ranges
Use exact cards when reviewing a known showdown or saved hand. Switch to ranges when the question concerns strategy rather than one combination. Range analysis helps answer questions such as how a structural class performs against an opening range or how a defending range changes on a specific board.
Heads-up and multiway calculations
Omaha pots are frequently multiway, and equity does not scale in a simple linear way as players are added. Add opponents and compare how nut potential, domination and redraws affect each participant.
Preflop and postflop boards
Run a clean preflop comparison or enter community cards to study flop, turn and river situations. Postflop calculations are valuable when reviewing close draws, redraws, made hands and range-versus-range interactions.
| Use case | Best input | Question answered |
|---|---|---|
| Known showdown | Exact hands | How much equity did each player have? |
| Range study | Full ranges | How does one strategy range perform against another? |
| Multiway review | Three or more players | How did additional ranges change each player’s equity? |
| Board analysis | Hands or ranges plus board | How do blockers, redraws and nut potential interact? |
Computed on your device
The calculator is designed to work locally. This supports fast study and keeps the hands and ranges you enter on your device.
Frequently asked questions
Does the calculator support PLO5?
Yes. You can calculate equities for both four-card and five-card Omaha.
Can I compare ranges instead of exact hands?
Yes. Each player can be represented by exact cards or a range, depending on the question you are studying.
Can it calculate multiway equity?
Yes. Add additional players to examine heads-up and multiway situations.
Is the calculator only for preflop?
No. You can enter board cards for postflop equity analysis as well as run preflop calculations.