At 20th level, you can attack four times whenever you take the Attack action on your turn.
Extra Attack (3)
Raw data
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"srd": true,
"name": "Extra Attack (3)",
"page": 72,
"level": 20,
"__prop": "classFeature",
"source": "PHB",
"entries": [
"At 20th level, you can attack four times whenever you take the {@action Attack} action on your turn."
],
"className": "Fighter",
"basicRules": true,
"classSource": "PHB"
}