Carry-on restrictions for airlines

Handy reference for cabin carry-on restrictions for budget airlines from Singapore for the lowliest chicken coop tier. Scoot and TigerAir allow for a wider but shorter bag. Wonder why? TigerAir is the most generous with a maximum of 10kg weight limit - good for those trips where you might need to pack some gear required for adventures.

JetStar Asia:

Maximum Dimensions: 56cm x 36cm x 23cm 

Maximum Weight: 7 kg

Link: http://www.jetstar.com/sg/en/help/articles/carry-on-baggage-what-can-i-bring-on-board

AirAsia:

Maximum Dimensions: 56cm x 36cm x 23cm 

Maximum Weight: 7 kg

Link: http://www.airasia.com/sg/en/baggage-info/cabin-baggage.page

Scoot:

Maximum Dimensions: 54cm x 38cm x 23cm (total linear dimensions 115cm).

Maximum Weight: 7 kg

Link: http://support.flyscoot.com/entries/23835366-How-many-and-how-much-cabin-baggage-may-I-bring-on-board-

TigerAir:

Maximum Dimensions: 54 cm x 38 cm x 23 cm

Maximum Weight: 10 kg

Link: http://www.tigerair.com/sg/en/faqs.php#q5

Airlines should allow me to carry on more if I commit to lose some weight before my flight. I can also swear not to eat anything prior to boarding.