Marla (Pakistan Housing Schemes, 225 sq ft) to Gaj (Square Yards): the quick answer
To convert marla (Pakistan housing schemes, 225 sq ft) to gaj (square yards), multiply the value by 25. To go the other way, multiply gaj (square yards) by 0.04 to get marla (Pakistan housing schemes, 225 sq ft).
↔ Convert gaj (square yards) to marla (Pakistan housing schemes, 225 sq ft) instead