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Graco Nautilus 2.0 3-in-1

The Graco Nautilus 2.0 3-in-1 forward-faces up to 65 lb, is 19.4 in wide, and weighs 17.8 lb, per Graco.

DiscontinuedNo longer made or sold new. Specs are kept for comparing generations.

  • 65 lbHarness to
  • 120 lbBooster to
  • 17.8 lbSeat weight
  • 19.4 inWidth
See it on Graco's site

All harness-to-booster car seats

Nautilus 2.0 3-in-1: key facts

  • The Graco Nautilus 2.0 3-in-1 forward-faces with a harness from 26.5 to 65 lb; works as a booster from 40 to 120 lb, per Graco.
  • It's 19.4 in wide at the widest point and weighs 17.8 lb.

From Graco's published specs. Always follow the limits on your seat's labels.

How the Nautilus 2.0 3-in-1 stacks up

Against the 23 harness-to-booster car seats we track. The shaded band is where the middle half of them fall; the dot is this one.

Forward-facing limit65 lbHighest forward-facing limit of 23 harness-to-booster car seats

The same as most harness-to-booster car seats (65 lb).

This one
40 lbmiddle 65 lb65 lb
Width19.4 in9th narrowest of 12

Within the typical range for harness-to-booster car seats (18.3 in to 19.4 in).

This one
17.5 inmiddle 19 in21.9 in
Weight17.8 lb7th lightest of 16

Within the typical range for harness-to-booster car seats (16 lb to 25 lb).

This one
9.1 lbmiddle 23 lb26.2 lb

Where to buy the Nautilus 2.0 3-in-1

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good to know
  • Discontinued. You may still find it used or on clearance.
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
  • Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Graco Nautilus 2.0 3-in-1
TypeHarness-to-booster
Forward-facing weight26.5–65 lb
Booster weight40–120 lb
Seat weight17.8 lb
Width19.4 in
Load legNo
Anti-rebound barNo
RotatesNo
Recline positions4

Compare the Nautilus 2.0 3-in-1 with

How each closest rival differs from the Nautilus 2.0 3-in-1, from the makers' specs.

Ask the meadow

Nautilus 2.0 3-in-1: questions answered

From Graco's published specs, last checked 2026-11-06.

Will the Graco Nautilus 2.0 3-in-1 fit three across or in a small car?

It's wider than 86% of the harness-to-booster seats we track, at 19.4 in. The narrowest is the Chicco MyFit ClearTex Harness + Booster at 17.5 in. Fit depends on your vehicle; check each seat's manual and your vehicle manual. Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Is it OK to buy a used Nautilus 2.0 3-in-1?

NHTSA publishes guidance on used car seats on its car seat page. Check the label and the maker's instructions, and ask your pediatrician about your child.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

More harness-to-booster car seats

Where these specs come from

Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.