Hi G fn 84, the size of any Jaeger is in the up side of the blue prints.
I suggest to you open the imagen in a new window and click on it to can see it in detail :)
Or go [url=http://www.panpacificdefense.com/#/shatterdome]to the shatterdome[/url] click that link , there you can find pilots, weapons, size, and all the Jeagers information, any room has a jaeger and you can take a look in detail of them.
[img]http://www.pacificrim-movie.net/media/Coyote_Tango_28_Helicopters_Tall.jpg[/img]
[img]https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/945487_667777009904040_1810015967_n.jpg[/img]
[img]https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash3/936196_667777229904018_1006626121_n.jpg[/img]
[img]http://www.pacificrim-movie.net/media/jaeger_crimsontyphoon_english.jpg[/img]
[img]http://www.pacificrim-movie.net/media/PPDC_Blueprint_JaegerChernoAlpha.jpg[/img]
[img]https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash4/296145_667777263237348_52994713_n.jpg[/img]
[img]http://images4.wikia.nocookie.net/__cb20130617093437/pacificrim/images/d/d6/Striker_Eureka_Specs.jpg[/img]
[img]http://www.panpacificdefense.com/files/images/shared/do***ents/PPDC_Blueprint_JaegerStrikerEureka.jpg[/img]
[img]http://www.giantfreakinrobot.com/wp-content/uploads/2012/11/Jaeger.jpeg[/img]
Also in the wikia link that Linx posted above, you can find some data bout it :
[i]Gipsy Danger has served the Pan Pacific Defense Corps with a record of nine confirmed Kaiju kills. It is a Mark-3 class, standing at 79 meters (260 feet) tall and weighing 1,980 tons.[/i]