null
Skip to main content
Cart 0
Your Bag
  1. Home
  2. Car Seats
  3. Radian® 3R
50622-US-01

Radian® 3R

$199.99
Radian® 3R all-in-one convertible car seat [Gray Slate]
Radian® 3R 3 across [Gray Slate]
Rear facing for longer up to 50 lb [Gray Slate]
10 years one car seat [Gray Slate]
Famous Diono steel core [Gray Slate]
[Gray Slate]
High-back booster [Gray Slate]
Slim fit 3 across design combination rear and forward facing [Gray Slate]
Rear-facing for longer [Gray Slate]
Slim fit 3 across design combination rear and forward facing [Gray Slate]
Slim fit three across design forward facing [Gray Slate]
Side Impact Protection [Gray Slate]
Easy Remove Machine Wash Covers [Gray Slate]
SuperLATCH™ connectors for easy installation [Gray Slate]
Folds for travel FAA Approved [Gray Slate]
Anti slip harness pads [Gray Slate]
Expandable seat width [Gray Slate]
5-point harness [Gray Slate]
Radian® 3R all-in-one convertible car seat [Black Jet]
Radian® 3R all-in-one convertible car seat [Black Jet]
Radian® 3R 3 across [Black Jet]
10 years one car seat [Black Jet]
Slim fit 3 across design combination rear and forward facing [Black Jet]
[Black Jet]
Rear facing for longer up to 50 lb [Black Jet]
The original 3-across all-in-one convertible car seat [Black Jet]
Famous Diono steel core [Black Jet]
Easy remove machine wash covers [Black Jet]
Easy remove machine wash covers [Black Jet]
High-back booster mode [Black Jet]
5-point harness [Black Jet]
Memory foam comfort and protection [Black Jet]
Folds for travel FAA Approved [Black Jet]
Slim fit 3 across design combination rear and forward facing [Black Jet]
Rear-facing for longer [Black Jet]
Radian® 3R all-in-one convertible car seat [Blue Sky]
Radian® 3R 3 across [Blue Sky]
Rear-facing for longer up to 50 lb [Blue Sky]
10 years one car seat [Blue Sky]
Famous Diono steel core [Blue Sky]
[Blue Sky]
High-back booster mode [Blue Sky]
Slim fit 3 across design combination rear and forward facing [Blue Sky]
Rear-facing for longer [Blue Sky]
Slim fit 3 across design combination rear and forward facing [Blue Sky]
Slim fit three across design forward facing [Blue Sky]
Side Impact Protection [Blue Sky]
Easy remove machine wash covers [Blue Sky]
Quick and easy installation with SuperLATCH [Blue Sky]
Folds for travel FAA Approved [Blue Sky]
Anti-slip harness pads [Blue Sky]
Expandable seat width [Blue Sky]
5-point harness [Blue Sky]
Radian® 3R all-in-one convertible car seat [Pink Blossom]
Radian® 3R all-in-one convertible car seat [Pink Blossom]
Radian® 3R 3 across [Pink Blossom]
10 years one car seat [Pink Blossom]
Slim fit three across design forward facing [Pink Blossom]
[Pink Blossom]
Rear facing for longer up to 50 lb [Pink Blossom]
The original 3-across all-in-one convertible car seat [Pink Blossom]
Famous Diono steel core [Pink Blossom]
Easy remove machine wash covers [Pink Blossom]
Easy remove machine wash covers [Pink Blossom]
5-point harness [Pink Blossom]
Memory foam comfort and protection [Pink Blossom]
Folds for travel FAA Approved [Pink Blossom]
Slim fit 3 across design combination rear and forward facing [Pink Blossom]
Rear-facing for longer [Pink Blossom]
Radian® 3R all-in-one convertible car seat [Red Cherry]
Radian® 3R 3 across [Red Cherry]
Rear facing for longer up to 50 lb [Red Cherry]
10 years one car seat [Red Cherry]
Famous Diono steel core [Red Cherry]
[Red Cherry]
High-back booster mode [Red Cherry]
Slim fit 3 across design combination [Red Cherry]
Rear-facing for longer [Red Cherry]
Slim fit 3 across design combination rear and forward facing [Red Cherry]
Side Impact Protection [Red Cherry]
Easy remove machine wash covers [Red Cherry]
Quick and easy installation with SuperLATCH [Red Cherry]
Folds for travel FAA Approved [Red Cherry]
Anti-slip harness pads [Red Cherry]
Expandable seat width [Red Cherry]
5-point harness [Red Cherry]
Radian® 3R all-in-one convertible car seat [Gray Slate]

The original 3 across All-in-One convertible car seat


$199.99

Enjoy a lifetime of savings, care and protection with Lifetime Journey Care

Recieve perks when you shop on diono.com

Additional 2-Year Warranty

Receive an additional 2-year warranty on all car seats and strollers purchased from diono.com

Free Shipping on orders over $400*

Diono proudly offers free shipping on orders over $400

Unlock exclusive offers & discounts

Unlock exclusive news, offers and discounts on all diono.com products.

1-2-1 Virtual Car Seat Fitting

Book a 1-2-1 virtual car seat fitting with a member of our car seat safety team.

* T & C's apply

Radian® 3R

Radian® 3R is the original 3 across All-in-One convertible car seat. Now rear-facing even longer (up to 22.7 kg / 50 lb) and suitable from birth to 54 kg / 120 lb, expect 10 years of safety from just one car seat.

Features:

  • REAR-FACING FOR LONGER - Designed and engineered to keep your child rear facing even longer up to 22.7 kg / 50 lb. approx. 4 years old
  • 10 YEARS ONE CAR SEAT - With 4 ways to travel from birth to booster, the Radian® 3R adapts as your child grows to offer a custom fit from birth up to 54 kg / 120 lb.
  • THE ORIGINAL RADIAN® 3 ACROSS: Built with our famous Radian® slim fit convertible design for a 3-across option only with Diono Radian® combinations, without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
  • STEEL CORE - Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.

Product Specs

  • Minimum User Weight: 5 lb / 2.3 kg
  • Maximum User Weight: 120 lb / 54 kg
  • Minimum User Weight - Rear Facing: 5 lb / 2.3 kg
  • Maximum User Weight - Rear Facing: 50 lb / 22.7 kg
  • Maximum User Weight - Rear Facing LATCH: 35 lb / 15.8 kg
  • Minimum User Weight - Forward Facing: 22 lb / 10 kg
  • Maximum User Weight - Forward Facing: 65 lb / 29.5 kg
  • Maximum User Weight - Forward Facing LATCH: 40 lb / 18 kg
  • Minimum User Weight - Booster: 40 lb / 18 kg
  • Maximum User Weight - Booster: 120 lb / 54 kg
  • Maximum User Height: 57.1 in / 145 cm
  • Product Height: 28.5 in / 72.4 cm
  • Product Width: 17 in / 43.2 cm
  • Product Depth: 16 in / 40.6 cm
  • Seat Weight: 25.9 lb / 11.74 kg

Care & Maintenance

Covers: Machine wash cold, line dry. Shell and Components: Spot clean

Warranty Information

12 months standard warranty - extended to 36 months when you register with Diono® post purchase

Diono Radian 3 Across - Color The Journey 3R

Diono radian 3R Product Video

The Diono Difference

The Radian® R series features a unique combination of diono car seat engineering and rigorous testing.
Every Radian® All-in-One Convertible Car Seat is designed to adapt as your child grows to offer a custom fit from birth to booster (up to 120 lb.)
Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.
Engineered to keep your child rear-facing for longer up to 50 lb.

Plays well with

Customers Also loved

Radian® 3QXT All-in-one convertible car seat [Black Jet]
Sale

Radian® 3QXT

$449.99
$359.99

The ultimate 3 across All-in-One car seat from birth to booster.

Radian® 3QX all-in-one convertible car seat [Black Jet]

Radian 3QX

$399.99

The advanced 3 across All-in-One car seat from birth to booster.

Reviews