What is range vs range equity?

Instead of comparing one exact hand against another, range vs range weighs every combo in each player's range equally and reports the average equity across all of them. This is the more realistic question in most real hands — you rarely know your opponent's exact two cards, only a plausible range.

How do I build a range on the grid?

Click cells to toggle them in or out of a range. The diagonal is pocket pairs, the cells above it are suited combos, and the cells below it are offsuit combos — the standard layout used by most poker training tools.

Yes — leave the board empty for a preflop range vs range spot, or fill in the flop, turn, and river for a postflop range vs range calculation (e.g. how a continuation-betting range performs against a calling range on a specific board texture).

Why is this range-heavy and slower than the single-hand calculator?

Every trial has to sample a fresh combo from each range before dealing out the rest of the board, which is more work than a fixed known hand. The calculator automatically uses a lower trial count while you're still building your ranges, then a higher one once you stop.

Range vs Range Equity Calculator

Build both players' ranges on the grid below and get a live Monte Carlo equity estimate — most free calculators only handle one exact hand against another or a fully random opponent.

Hero range

Villain range

Board (optional)

FlopTurnRiver

Fill in hero cards (and board/villains if known) to see equity.

How this calculator works — formulas & method

Method: Monte Carlo simulation, one random combo sampled per range per trial · deterministic per seed — no AI

Constant	Value	Source
trials (live)	5,000	internal tiering, capped lower — range sampling is more expensive per trial
trials (settled)	10,000	internal tiering, after inputs stop changing

— Per trial —heroHand    = sample one combo uniformly from hero's rangevillainHand = sample one combo uniformly from villain's rangereject trial if heroHand and villainHand share a carddeal remaining board, score both hands, record win/tie/lose — Aggregate —equity = (wins + ties/2) / totalTrials// every combo in each range is weighted equally, not by hand strength

Uniform sampling means a range's equity reflects every combo it contains, not just its strongest hands — this is what makes range vs range different from just picking the 'best' hand in each range.

Just want to size and sanity-check a single range instead of comparing two? Use the poker range calculator to see exactly what percentage of all starting hands a range covers.

FAQ

What is range vs range equity?: Instead of comparing one exact hand against another, range vs range weighs every combo in each player's range equally and reports the average equity across all of them. This is the more realistic question in most real hands — you rarely know your opponent's exact two cards, only a plausible range.
How do I build a range on the grid?: Click cells to toggle them in or out of a range. The diagonal is pocket pairs, the cells above it are suited combos, and the cells below it are offsuit combos — the standard layout used by most poker training tools.
Can I add a board?: Yes — leave the board empty for a preflop range vs range spot, or fill in the flop, turn, and river for a postflop range vs range calculation (e.g. how a continuation-betting range performs against a calling range on a specific board texture).
Why is this range-heavy and slower than the single-hand calculator?: Every trial has to sample a fresh combo from each range before dealing out the rest of the board, which is more work than a fixed known hand. The calculator automatically uses a lower trial count while you're still building your ranges, then a higher one once you stop.