Aries belongs to the element of Fire and moves through life in the Cardinal mode, ruled by Mars. Leo belongs to the element of Fire and moves in the Fixed mode, ruled by Sun.
Two fire signs share a pulse of enthusiasm, courage and drive. The spark is instant and the pace is brisk — the risk is that there is no one left to slow the fire down when it burns hot.
One of you starts, the other builds. This is a productive mix — the cardinal partner launches, the fixed partner sees it through. Resentment only creeps in when the fixed partner feels rushed.
Both signs belong to the active, outward polarity, so your life together tends to be social, expressive and forward-moving. Give each other permission to pause sometimes.
What follows is a general read on this pair. Real compatibility depends on the whole natal chart — use the calculator linked on this page to compare two full charts when you're ready.