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Diono RadianR100 Convertible Car Seat

Item # HN-SSK019

Dimensions & Specifications

Recommended Ages
0 yrs.
23 lbs.
Weight Capacity
100 lbs.


Machine wash and dry

Product Guarantee

Manufacturer Warranty

Return & Exchange Policy

  • Rear- or front-facing car seat
  • Transitions to booster with removable back
  • Award-winning, innovative design
  • First steel-reinforced folding car seat
  • LATCH system provides easy, secure installation
Full Description
Guarantee & Returns
Customer Reviews


by PowerReviews
Diono RadianR100 Convertible Car Seat

(based on 42 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 42 customers

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Displaying reviews 1-5

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Big & Roomy for Child

By ryguy

from iowa

Comments about Diono RadianR100 Convertible Car Seat:

I love how much room it seems my daughter has, low sides at base and tall top. However it's very narrow in my car. We'll be buying a 2nd for my next child. We've also traveled with it many can get heavy but it folds up nicely in the travel bag and bag&seat always arrive without wear to show for the trip.


LOVE these seats!

By Emily

from NJ

Comments about Diono RadianR100 Convertible Car Seat:

We have 4 Radians - 2 100s and 2 120s for our small cars (with angle adjusters) and I adore them. We keep them side by side so we can squeeze an adult back there. PLEASE do not stop making these nice narrow models. I also really appreciate the lower side walls to help airflow!


Love our Diono car seats!

By Strulove

from Wamberal, New South Wales, Australia

Comments about Diono RadianR100 Convertible Car Seat:

We searched extensively for a car seat that was thin enough to for three across the back seat of our car, but was also very safe and comfortable. The Diono seats tick every box! We have the R100, R120 and have just ordered the RXT. The RXT is to replace a booster seat that is just too wide and honestly no where as convenient and safe. Yes, these seats are heavier than other car seats but they feel sturdy and I feel confident in the safety of my children. We used the R120 for my daughter from birth with it rear facing. To be honest it is a VERY long seat when in this position and you would be advised to test it in your car this way before purchasing it for rear facing. We are fortunate to have a Honda odyssey so made it fit.. Once turned around the seats fit so nicely side by side. I love how the buckles are simple without those silly puzzle pieces. Overall my hubby and I are extremely happy with our Diono seats and always recommend them to friends and family. Well done Diono!!


Heavy and well made

By SimonsMom

from Louisiana, United States

Comments about Diono RadianR100 Convertible Car Seat:

Pros: Secure installation, ability to travel, my toddler can remain rear-facing, could fit three carseats in my backseat if needed Cons: Heavy!


Fit's where others won't!

By Sebastians

from Emmett, ID, United States

Comments about Diono RadianR100 Convertible Car Seat:

Had this seat for several months now and have been very pleased. Bought the Radian to fit next to our other car seat, it's the only one we've found that fits. The seat feels very sturdy and seems like it will last a long time. I was initially concerned about installation because of other reviews I've read. We've had no problems, it takes a few moments longer to tighten (latch) then our other seats but is just as secure and free of movement. Our toddler likes the seat but would probably be more comfortable sleeping if we'd gotten the upgraded model with padded head support. Looking forward to years of use with this seat!

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