The Fair Work Commission has lifted the national minimum wage by 2.4%.

Australia's lowest paid workers will now receive a 2.4 per cent pay increase, going from $656.90 a week or $17.29 an hour, to $672.70 a week or $17.70 an hour.

This translates into an increase of $15.80 per week.

The commission said a generally robust economic climate provided the opportunity for a modest increase to Australia's lowest paid workers.

More than 1.8 million people who are on the minimum wage will receive the increase from July 1.