https://boards.hellobee.com/ Pregnancy, Baby and Parenting blog, by Hellobee en Wed, 08 Jul 2026 19:59:11 +0000 https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1134201 Sun, 06 Oct 2013 09:35:06 +0000 looch 1134201@https://boards.hellobee.com/ <p>@SAHM0811: Oh okay! I didn't realize the Marathon didn't have that sliding part. My son's length is in his torso, he is almost 3 and wearing size 4T up top and 2T bottoms. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1134009 Sun, 06 Oct 2013 02:54:29 +0000 erwoo 1134009@https://boards.hellobee.com/ <p>I rear faced my oldest until he was 2.5 (he's almost 4.5 now) b/c my belly was just getting too big to be carrying him up there (my old SUV was a bit high). I forget his weight but he's pretty average in terms of height and weight for his age. For my youngest, he is 18 months now and almost 30 lbs and I can still rear face him in his Diono RXT which has a rear-facing limit of 45 lbs. I plan on rear facing him for as long as possible. I bought all Diono in hopes of not having to buy anymore car seats for a very long time. I think both kids will use it until they can't use it anymore. The new Dionos can be booster up until 120 which is pretty awesome! </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133975 Sun, 06 Oct 2013 00:32:51 +0000 autumnlove 1133975@https://boards.hellobee.com/ <p>@chopsuey: I might keep her rear facing for a little longer... :-) </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133795 Sat, 05 Oct 2013 20:14:04 +0000 runsyellowlites 1133795@https://boards.hellobee.com/ <p>@brownie: The measurements for both rf (1" below) or ff (when ear reach top of shell) is done from the shell itself, not the moveable head wings. :/ </p> <p>@SAHM0811: I figured she was a long legged lady! ;) P has long legs too!... She is 30.125 right now at 17 mths so I think we'll make it close to 3 if not to 3. I do have to call though b/c something tells me she'll exceed the 1" from shell limit before she reaches the 25lb minimum for removing the infant insert (she's 20.9 right now).. gotta a ways to go though. We still plan on upgrading her to a higher limit seat so we can continue rf till 4 but we'll use the Combi from birth for the next so it helped the sting of spending the money on another seat. :) </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133783 Sat, 05 Oct 2013 20:00:55 +0000 SAHM0811 1133783@https://boards.hellobee.com/ <p>@runsyellowlites: I think your DD will probably last RFing til 3yo! How tall is she now? My 2 yo is around 33". Her sister was around 36-37" at 3 yo, if I recall correctly. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133771 Sat, 05 Oct 2013 19:47:20 +0000 SAHM0811 1133771@https://boards.hellobee.com/ <p>@runsyellowlites: @looch: my DD has long legs, so most of her height goes down there. So when she was seated at that age, she still had tons of room up top! And with her legs being long, she just sat "criss-cross applesauce". Our Marathon doesn't haven't an extendable part that I know of. It was made in 2009 though, so maybe things have changed since then. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133731 Sat, 05 Oct 2013 18:57:48 +0000 looch 1133731@https://boards.hellobee.com/ <p>@SAHM0811: can I ask if it lasted so long because there is that top piece that slides out, where you adjust the straps? </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133727 Sat, 05 Oct 2013 18:56:36 +0000 looch 1133727@https://boards.hellobee.com/ <p>Rear facing until 32 months, at about 36 inches/32 pounds.</p> <p>He will stay on the 5 point harness until he is mature enough for a belt positioning booster and outgrows the weight/height limits for the seat. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133726 Sat, 05 Oct 2013 18:52:03 +0000 T-Mom 1133726@https://boards.hellobee.com/ <p>My Dd moved from her britax convertible at age 4 to britax frontier 85 (combination booster with 5 pt harness). However in one of our cars, the britax combo booster we bought does not install properly and we are still using a britax boulevard. She's 5 and well within the weight and height limits. My DS just started ff in our britax marathon (handed down from DD) and he is 2. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133717 Sat, 05 Oct 2013 18:42:13 +0000 runsyellowlites 1133717@https://boards.hellobee.com/ <p>@SAHM0811: Yea, they find have a standing limit... I just read a few different places that with the short shell ~37" is when that 1" limit is hit, usually after 2 but definitely before the recommended 4. Seems you like definitely got longer use than most!! </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133716 Sat, 05 Oct 2013 18:41:28 +0000 Mrs. Jacks 1133716@https://boards.hellobee.com/ <p>Lala was rear facing in her britax until 34 months and 23 lbs and M is already forward facing at 19 months and 23 lbs. Her legs were too long to be rear facing anymore! </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133712 Sat, 05 Oct 2013 18:34:19 +0000 brownie 1133712@https://boards.hellobee.com/ <p>I put my friends son in our britax 70 rear facing at 4 years old. The head shells moves up so it is possible. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133697 Sat, 05 Oct 2013 18:06:23 +0000 Mrs. Yoyo 1133697@https://boards.hellobee.com/ <p>My LO outgrew his Marathon RF by 21 months :( so we switched to a Diono Radian RXT. He should be in that for quite awhile. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133692 Sat, 05 Oct 2013 17:57:08 +0000 SAHM0811 1133692@https://boards.hellobee.com/ <p>@chopsuey: it's actually because we were in NYC til she was 3.5 yo! So we moved back here when she was 3-ish, and I was SUPER paranoid about driving again (I hadn't owned a car in over 8 years, let alone driven with little kids so much), so I just started her out RF since she didn't know any better at the time :p</p> <p>@runsyellowlites: she's actually around 50%! The RF height on ours is just when the top of her head is an inch from the top of the shell. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133677 Sat, 05 Oct 2013 17:39:35 +0000 runsyellowlites 1133677@https://boards.hellobee.com/ <p>@SAHM0811: Wow that's awesome! How tall is your lo % wise? I heard that for kids over 30% they usually reach the max height early. P is around 11% so I think we'd to about 3 in her Combi (same ~ rf height limit). </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133674 Sat, 05 Oct 2013 17:37:32 +0000 chopsuey 1133674@https://boards.hellobee.com/ <p>@autumnlove: @SAHM0811: so crazy that you guys stayed RF for so long! But I probably would have too if I lived in CA! </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133672 Sat, 05 Oct 2013 17:34:54 +0000 SAHM0811 1133672@https://boards.hellobee.com/ <p>We have a Britax Marathon. We stayed RF til after 3 yo! The RF limit on ours is 35 or 40 lbs... I forgot which exactly, but it takes a while to get there (My 5.5 year old is just over 40 lbs now). The only reason she left this car seat behind was so DD 2 could use it when she outgrew her infant seat. DD 1 went to a Diono Radian RXT and that's what she's still in now. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133664 Sat, 05 Oct 2013 17:26:15 +0000 chopsuey 1133664@https://boards.hellobee.com/ <p>DD is still in hers and has lots of room to grow. Will keep her in it until she's 4 probably. Maybe longer if it's still comfortable.<br /> We have an Advocate 70. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133652 Sat, 05 Oct 2013 17:04:22 +0000 runsyellowlites 1133652@https://boards.hellobee.com/ <p>Here's the NHTSA guidelines for child safety restraint:<br /> <a href="http://www.nhtsa.gov/ChildSafety/step1" rel="nofollow">http://www.nhtsa.gov/ChildSafety/step1</a></p> <p>I read it should make it to 5 or 6 ff, but are usually outgrown rf by 2.5 or when the child can wear a 3T shirt. (why they aren't a very recommended convertible). After lo outgrows the convertible they'll move to a harnessed booster and then a seat belt booster. </p> https://boards.hellobee.com/topic/how-long-did-your-lo-use-their-britax-convertible-seat#post-1133641 Sat, 05 Oct 2013 16:51:52 +0000 autumnlove 1133641@https://boards.hellobee.com/ <p>We have a Britax Boulevard 70-GS in each car. LO is 21 months, 25 lbs and still rear facing and we plan on moving the seat forward facing after she turns 2. How much longer do kids use convertible seats? Is it up to the 70lb weight limit?</p> <p>What is the next step after convertible seats and when did your LO make the transition? </p>