Push or fold charts

Heads-up, no antes, blinds 0.5/1. The small blind either jams or folds; the big blind either calls or folds. These are Nash equilibrium ranges, computed for this site from all-in equities, so neither player can gain by deviating. Real tables have antes and more players, which widen the jamming ranges; use these as the floor.

Stack	SB jams	BB calls
3bb	77.7% of hands	90.0% (Pro)	Drill →
4bb	74.1% of hands	70.4% (Pro)	Drill →
5bb	70.1% of hands	60.2% (Pro)	Drill →
6bb	67.4% of hands	53.2% (Pro)	Drill →
7bb	64.1% of hands	47.8% (Pro)	Drill →
8bb	61.7% of hands	43.3% (Pro)	Drill →
9bb	59.3% of hands	40.3% (Pro)	Drill →
10bb	56.6% of hands	36.3% (Pro)	Drill →
11bb	55.1% of hands	34.2% (Pro)	Drill →
12bb	52.6% of hands	33.0% (Pro)	Drill →
13bb	50.8% of hands	30.3% (Pro)	Drill →
14bb	48.1% of hands	29.7% (Pro)	Drill →
15bb	45.7% of hands	28.5% (Pro)	Drill →
16bb	44.2% of hands	26.8% (Pro)	Drill →
17bb	41.8% of hands	25.0% (Pro)	Drill →
18bb	40.9% of hands	23.5% (Pro)	Drill →
20bb	40.9% of hands	21.3% (Pro)	Drill →
22bb	38.8% of hands	19.2% (Pro)	Drill →
25bb	37.0% of hands	17.3% (Pro)	Drill →

How to read the numbers

Short stacks jam wide because the blinds are a large share of the stack and the big blind must fold a lot of hands it cannot profitably call with.
The calling range is always tighter than the jamming range: the caller needs real equity, the jammer gets fold equity on top.
With antes, add roughly 10 to 15 percent more hands to the jamming range. Multiway (players still to act behind you) tighten instead.