Poker Hand Range Equity Calculator
Estimates your equity percentage against a villain's hand range, adjusting for board texture, street, and number of players. Useful for reviewing hand histories and studying range vs. range matchups.
About this calculator
Range equity is the average equity one range of hands holds against another across all possible runouts. The formula here is: equity = ((heroRange / (heroRange + villainRange)) × 100) × (min(boardTexture, 10) / 10) × ((5 − |street − 3|) / 5) × 0.95^max(0, players − 2). The first term is your raw range share. The board texture term (0–10 scale) penalises equity on dry boards where strong made hands dominate. The street term peaks at street 3 (the turn, where ranges are most defined) and tapers at earlier and later streets. Finally, each additional player beyond two reduces equity by 5% per player, reflecting multiway equity dilution.
How to use
Hero range strength = 70, villain range = 50, board texture = 7, players = 2, street = 3 (turn). Step 1: 70 / (70 + 50) × 100 = 58.3%. Step 2: × (7/10) = 40.8%. Step 3: × ((5 − |3−3|) / 5) = × 1.0 = 40.8%. Step 4: × 0.95^max(0,0) = × 1 = 40.8%. Your estimated equity is approximately 41% on the turn in this matchup.
Frequently asked questions
What does equity mean in poker and how is it different from winning probability?
Equity is your share of the pot if the hand were run out many times from the current point, expressed as a percentage. Winning probability is the chance you win any single runout. They are closely related but not identical because of split-pot scenarios (ties) and multiway pots where multiple players have overlapping equity. Equity is most useful for deciding whether to call a bet — if your equity exceeds the pot odds you are getting, calling is mathematically correct.
How does board texture affect range equity in poker?
A wet board (many flush and straight draws) compresses equity differences between ranges because drawing hands have high immediate equity against made hands. A dry board (e.g. K-7-2 rainbow) polarises equity — strong made hands dominate, and drawing hands have very little equity. This calculator's board texture input scales your equity estimate to reflect that your range strength translates differently depending on board connectivity and suitedness.
Why does equity decrease with more players in the hand?
In a multiway pot, each additional player holds cards that may interact with the board or your outs. Their ranges contain hands that beat yours or reduce the number of winning cards available to you. Even a strong two-pair hand that is 70% against one opponent might be only 50% against two opponents simultaneously. The 0.95 per-player discount in this formula approximates this dilution effect, reminding you that multiway pots require stronger hands to continue profitably.