slug stringlengths 9 27 | nhtsa_id float64 774k 774k ⌀ | make stringclasses 10
values | model stringlengths 4 20 | seat_type stringclasses 2
values | rf_min_weight_lb float64 4 14 ⌀ | rf_max_weight_lb float64 40 50 ⌀ | rf_max_height_in float64 40 57 ⌀ | ff_min_weight_lb float64 20 25 ⌀ | ff_max_weight_lb float64 40 65 ⌀ | ff_max_height_in float64 43 57 ⌀ | has_rf bool 1
class | has_ff bool 1
class | has_booster bool 2
classes | nhtsa_overall_rating float64 2 5 ⌀ | nhtsa_securing_rating float64 3 5 ⌀ | nhtsa_install_rating float64 2 5 ⌀ | nhtsa_instructions_rating float64 3 5 ⌀ | nhtsa_recalls_count int64 0 0 | overall_width_in float64 16.9 20.5 | width_source stringlengths 20 82 | rotating bool 2
classes | rated_three_across bool 2
classes | price_band stringclasses 3
values | price_approx_usd int64 55 650 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
evenflo-revolve360-slim | null | Evenflo | Revolve360 Slim | Convertible | null | null | null | null | null | null | true | true | false | null | null | null | null | 0 | 16.9 | Evenflo published spec (16.9 in — the narrow/3-across rotating model; approximate) | true | true | $$$ | 350 |
cosco-scenera-next | 774,027 | Cosco | Scenera Next | Convertible | 5 | 40 | 40 | 22 | 40 | 43 | true | true | false | 3 | 3 | 3 | 5 | 0 | 17 | Cosco published spec (16.5–17.0 in widest point) | false | true | $ | 55 |
clek-fllo | 774,096 | Clek | Fllo | Convertible | 14 | 50 | 43 | 22 | 65 | 49 | true | true | false | 3 | 3 | 3 | 3 | 0 | 17 | Clek published spec (17.0 in) | false | true | $$$ | 380 |
diono-radian-3qx | 774,002 | Diono | Radian 3QX | All-in-One | 4 | 50 | 44 | 22 | 65 | 57 | true | true | true | 3 | 3 | 4 | 5 | 0 | 17 | Diono published spec (steel-framed, 17 in) | false | true | $$$ | 350 |
diono-radian-3qxt | 774,003 | Diono | Radian 3QXT | All-in-One | 4 | 50 | 44 | 22 | 65 | 57 | true | true | true | 3 | 3 | 4 | 5 | 0 | 17 | Diono published spec (17 in) | false | true | $$$ | 370 |
cybex-sirona-s | 774,029 | Cybex | Sirona S | Convertible | 4 | 50 | 49 | 22 | 65 | 49 | true | true | false | 5 | 5 | 5 | 5 | 0 | 17 | Cybex published spec (~17 in at base; approximate) | true | true | $$$ | 500 |
cosco-mightyfit-65 | 774,072 | Cosco | MightyFit 65 | Convertible | 5 | 40 | 40 | 22 | 65 | 49 | true | true | false | 3 | 3 | 4 | 5 | 0 | 18 | Cosco published spec (~18 in) | false | true | $$ | 90 |
nuna-rava | 774,046 | Nuna | Rava | Convertible | 5 | 50 | 49 | 25 | 65 | 49 | true | true | false | 3 | 4 | 4 | 5 | 0 | 18.4 | Nuna published spec (~18.4 in) | false | false | $$$ | 500 |
graco-slimfit | 774,091 | Graco | SlimFit | All-in-One | 5 | 40 | 49 | 22 | 65 | 49 | true | true | true | 4 | 5 | 3 | 5 | 0 | 18.5 | Graco published spec (rotating cup holders stow to ~18.5 in) | false | true | $$ | 200 |
britax-marathon-clicktight | 774,016 | Britax | Marathon ClickTight | Convertible | 5 | 40 | 49 | 20 | 65 | 49 | true | true | false | 4 | 5 | 4 | 5 | 0 | 18.5 | Britax published spec (~18.5 in) | false | false | $$$ | 290 |
britax-boulevard-clicktight | 773,997 | Britax | Boulevard ClickTight | Convertible | 5 | 40 | 49 | 20 | 65 | 49 | true | true | false | 4 | 5 | 4 | 5 | 0 | 18.5 | Britax published spec (~18.5 in) | false | false | $$$ | 320 |
britax-poplar | 774,090 | Britax | Poplar | Convertible | 5 | 50 | 49 | 22 | 65 | 49 | true | true | false | 4 | 4 | 3 | 4 | 0 | 18.5 | Britax published spec | false | false | $$$ | 280 |
graco-contender-slim | 774,058 | Graco | Contender Slim | Convertible | 5 | 40 | 49 | 22 | 65 | 49 | true | true | false | 4 | 5 | 2 | 5 | 0 | 19 | Graco published spec | false | true | $$ | 150 |
graco-size4me-65 | 774,049 | Graco | Size4Me 65 | Convertible | 4 | 40 | 49 | 22 | 65 | 49 | true | true | false | 4 | 5 | 3 | 5 | 0 | 19 | Graco published spec | false | false | $$ | 170 |
chicco-nextfit-max | 774,059 | Chicco | NextFit Max | Convertible | 4 | 50 | 43 | 22 | 65 | 49 | true | true | false | 4 | 5 | 4 | 5 | 0 | 19 | Chicco published spec (~19 in) | false | false | $$$ | 280 |
chicco-fit4 | 774,000 | Chicco | Fit4 | All-in-One | 4 | 40 | 43 | 25 | 65 | 54 | true | true | true | 4 | 5 | 5 | 4 | 0 | 19 | Chicco published spec | false | false | $$$ | 350 |
evenflo-sureride-65 | 774,022 | Evenflo | SureRide 65 | Convertible | 5 | 40 | 40 | 22 | 65 | 54 | true | true | false | 2 | 3 | 3 | 3 | 0 | 19 | Evenflo published spec | false | false | $$ | 120 |
maxi-cosi-pria-all-in-one | 774,041 | Maxi-Cosi | Pria All-in-One | All-in-One | 4 | 40 | 40 | 22 | 65 | 49 | true | true | true | 3 | 5 | 3 | 5 | 0 | 19 | Maxi-Cosi published spec | false | false | $$$ | 300 |
nuna-revv | 774,055 | Nuna | Revv | Convertible | 5 | 40 | 43 | 25 | 40 | 43 | true | true | false | 5 | 5 | 5 | 5 | 0 | 19 | Nuna published spec (~19 in widest point; approximate) | true | false | $$$ | 500 |
maxi-cosi-emme-360 | null | Maxi-Cosi | Emme 360 | Convertible | null | null | null | null | null | null | true | true | false | null | null | null | null | 0 | 19 | Maxi-Cosi published spec (~19 in widest point; approximate) | true | false | $$$ | 450 |
nuna-todl | null | Nuna | TODL | Convertible | null | null | null | null | null | null | true | true | false | null | null | null | null | 0 | 19 | Nuna published spec (~19 in widest point; approximate) | true | false | $$$ | 650 |
graco-milestone | 774,007 | Graco | Milestone | All-in-One | 5 | 40 | 57 | 22 | 65 | 49 | true | true | true | 4 | 5 | 5 | 5 | 0 | 19.5 | Graco published spec | false | false | $$ | 200 |
graco-turn2me | null | Graco | Turn2Me | Convertible | null | null | null | null | null | null | true | true | false | null | null | null | null | 0 | 19.5 | Graco published spec (~19.5 in widest point; approximate) | true | false | $$$ | 300 |
graco-4ever-dlx | 774,005 | Graco | 4Ever DLX | All-in-One | 4 | 40 | 57 | 22 | 65 | 49 | true | true | true | 5 | 5 | 4 | 5 | 0 | 20 | Graco published spec (~20 in) | false | false | $$$ | 320 |
britax-advocate-clicktight | 773,995 | Britax | Advocate ClickTight | Convertible | 5 | 40 | 49 | 20 | 65 | 49 | true | true | false | 4 | 5 | 4 | 5 | 0 | 20.5 | Britax published spec (~20.5 in — the widest of the line, extra side bolsters) | false | false | $$$ | 360 |
Child Car Seat Specifications — 25 Models, NHTSA Ratings + Verified Width (2026)
NHTSA ease-of-use ratings (securing, installation, instructions, recall count) merged with a manufacturer-verified overall width in inches for 25 convertible/combination child car seats. NHTSA's own childSeats dataset does not publish a comparable width field — this is the fit-critical number parents need to determine three-across seating and is independently sourced/cross-checked per model. 21 of 25 rows carry an NHTSA ID, 25 carry a verified width.
Data: carseatmatch-child-seat-specifications.csv — one row per model, 25 rows.
Why this exists
NHTSA publishes ease-of-use ratings (ease of securing the child, ease of installing the seat, clarity of instructions) and recall counts per model, but no field for the seat's actual overall width — the single number that determines whether three seats fit across a given back bench. This dataset merges NHTSA's ratings with an independently verified width figure per model.
Columns
| column | meaning |
|---|---|
nhtsa_id |
NHTSA childSeats database ID, for cross-reference against NHTSA's own published ratings. |
rf_* / ff_* |
rear-facing / forward-facing weight and height limits per the seat's own manual. |
nhtsa_overall_rating etc. |
NHTSA's 1-5 ease-of-use ratings (securing the child, installing the seat, clarity of instructions) and cumulative recall count. |
overall_width_in |
the seat's widest point, in inches — manufacturer-published spec, cross-checked against a second source at entry time (see width_source). |
rated_three_across |
whether this seat is commonly recommended as narrow enough to be part of a three-across combination (not a guarantee for every vehicle bench — see price_band for budget-tier trade-offs). |
Sourcing caveat, stated plainly. NHTSA ratings and recall counts come from NHTSA's own published childSeats data. Width is independently verified per model against the manufacturer's own spec sheet; where sources disagreed, the wider (more conservative) figure was kept.
Source and license
Compiled and maintained by CarSeatFit (carseatmatch.com) — matches car seats to a specific vehicle by exact rear-bench width and NHTSA ratings, not generic reviews. Licensed CC-BY-4.0.
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