{
  "schema_version": "compare-page.v2",
  "page_id": "convertible-car-seats-and-front-seat-room",
  "url": "https://robotrunk.com/compare/want/convertible-car-seats-and-front-seat-room",
  "title": "Convertible car seats and front-seat room",
  "question": "Which convertible car seats take up the least space in front of the vehicle's front seat?",
  "answer": "Cybex Callisto G 360 Select: The seat measures 21.7 inches long by 19.5 inches wide by 25.5–35 inches high and weighs 35 pounds. The hands-on review says the Callisto family is relatively compact front-to-back for a rotating seat and often clears protruding, non-removable vehicle headrests, but its width makes adjacent seating or three-across arrangements difficult.\nGraco SlimFit 3-in-1 Narrow All-in-One Convertible Car Seat: Rotating cup holders rotate away to make the seat about 10% slimmer.\nBritax Poplar Convertible Car Seat: On a flat surface, the seat is about 28.5 inches long when reclined, but installed length varies with the vehicle seat and other factors.\nBritax Poplar: It is approximately 28.5 inches (72.39 cm) long when reclined on a flat surface; vehicle geometry can change the installed measurement.\nBritax Poplar S: It is 17 in (43.18 cm) wide and approximately 28.5 in (72.39 cm) long when reclined on a flat surface; installed length varies with the vehicle seat. The black base runners must rest entirely flat on the vehicle seat, and up to 3 inches (7.5 cm) of the base may overhang the front in either orientation.",
  "kind": "convertible car seat",
  "market": "US",
  "generated_at": "2026-10-10T03:14:14.822Z",
  "columns": [
    "Dimensions",
    "Width",
    "Front clearance"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p2.f7",
      "product": "Graco SlimFit 3-in-1 Narrow All-in-One Convertible Car Seat",
      "field": "width",
      "value": "Rotating cup holders rotate away to make the seat about 10% slimmer.",
      "stated_as": "The unique, rotating cup holders simply rotate away, making the seat 10% slimmer to save precious back seat space.",
      "source_type": "listing",
      "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
      "source_read_at": "2026-10-09T19:03:04.916Z"
    },
    {
      "ref": "p3.f2",
      "product": "Cybex Callisto G 360 Select",
      "field": "Size and weight",
      "value": "The seat measures 21.7 inches long by 19.5 inches wide by 25.5–35 inches high and weighs 35 pounds.",
      "stated_as": "Length\n21.7 in\nWidth\n19.5 in\nHeight\n25.5 - 35 in\nWeight\n35 lbs",
      "source_type": "guide",
      "source_url": "https://www.cybex-online.com/en/us/p/10108310.html",
      "source_read_at": "2026-09-24T21:24:15.998Z"
    },
    {
      "ref": "p3.f4",
      "product": "Cybex Callisto G 360 Select",
      "field": "Fit in vehicles",
      "value": "The hands-on review says the Callisto family is relatively compact front-to-back for a rotating seat and often clears protruding, non-removable vehicle headrests, but its width makes adjacent seating or three-across arrangements difficult.",
      "stated_as": "The hands-on review says the Callisto family is relatively compact front-to-back for a rotating seat and often clears protruding, non-removable vehicle headrests, but its width makes adjacent seating or three-across arrangements difficult.",
      "source_type": "review",
      "source_url": "https://www.thecarmom.com/articles/cybex-callisto-g-360-review",
      "source_read_at": "2026-09-24T21:24:32.607Z"
    },
    {
      "ref": "p4.f6",
      "product": "Britax Poplar Convertible Car Seat",
      "field": "Dimensions",
      "value": "The retailer lists overall dimensions of 20.5 × 17 × 23.5 inches and a 17-inch design width.",
      "stated_as": "Dimensions:\n20.5\" L × 17\" W × 23.5\" H\nDesign Width:\n17\" (SpaceSaver™ Slim Design)",
      "source_type": "guide",
      "source_url": "https://anb-baby.myshopify.com/products/britax-poplar-convetible-car-seat",
      "source_read_at": "2026-09-24T12:41:36.289Z"
    },
    {
      "ref": "p4.f8",
      "product": "Britax Poplar Convertible Car Seat",
      "field": "Reclined length",
      "value": "On a flat surface, the seat is about 28.5 inches long when reclined, but installed length varies with the vehicle seat and other factors.",
      "stated_as": "The length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
      "source_type": "manual",
      "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
      "source_read_at": "2026-09-24T12:41:42.811Z"
    },
    {
      "ref": "p6.f7",
      "product": "Britax Poplar",
      "field": "Width",
      "value": "The seat is 17 inches (43.18 cm) wide.",
      "stated_as": "At 17 in (43.18 cm) wide, these car seats are designed to fit 3-across* in most vehicles without compromising on safety and comfort.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
      "source_read_at": "2026-09-24T12:39:09.434Z"
    },
    {
      "ref": "p6.f10",
      "product": "Britax Poplar",
      "field": "Reclined length",
      "value": "It is approximately 28.5 inches (72.39 cm) long when reclined on a flat surface; vehicle geometry can change the installed measurement.",
      "stated_as": "The length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
      "source_read_at": "2026-09-24T12:39:09.434Z"
    },
    {
      "ref": "p7.f4",
      "product": "Britax Poplar S",
      "field": "Dimensions",
      "value": "It is 17 in (43.18 cm) wide and approximately 28.5 in (72.39 cm) long when reclined on a flat surface; installed length varies with the vehicle seat.",
      "stated_as": "At 17 in (43.18 cm) wide, these car seats are designed to fit 3-across* in most vehicles without compromising on safety and comfort. *Britax cannot guarantee 3-across installation fitment in all vehicles.\nThe length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
      "source_read_at": "2026-09-24T12:36:57.847Z"
    },
    {
      "ref": "p7.f6",
      "product": "Britax Poplar S",
      "field": "Seat overhang",
      "value": "The black base runners must rest entirely flat on the vehicle seat, and up to 3 inches (7.5 cm) of the base may overhang the front in either orientation.",
      "stated_as": "The black positioning runners on the bottom of the car seat's base must rest entirely flat on your vehicle's seat, however the space beyond the runners’ outside edges is permitted to overhang the vehicle seat edge. You are also permitted to have up to 3 inches (7.5 cm) of the base extending beyond the front edge of your vehicle's seat in either rear-facing or forward-facing modes",
      "source_type": "guide",
      "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
      "source_read_at": "2026-09-24T12:36:57.847Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/9849520488734",
      "name": "Cybex Callisto G 360 Select",
      "url": "/products/ucp/anbbaby-com/9849520488734",
      "why": "The hands-on review says the Callisto family is relatively compact front-to-back for a rotating seat and often clears protruding, non-removable vehicle headrests, but its width makes adjacent seating or three-across arrangements difficult.",
      "cells": [
        {
          "column": "Dimensions",
          "fact": {
            "field": "Size and weight",
            "value": "The seat measures 21.7 inches long by 19.5 inches wide by 25.5–35 inches high and weighs 35 pounds.",
            "stated_as": "Length\n21.7 in\nWidth\n19.5 in\nHeight\n25.5 - 35 in\nWeight\n35 lbs",
            "source_type": "guide",
            "source_url": "https://www.cybex-online.com/en/us/p/10108310.html",
            "source_read_at": "2026-09-24T21:24:15.998Z"
          }
        },
        {
          "column": "Width",
          "fact": {
            "field": "Size and weight",
            "value": "The seat measures 21.7 inches long by 19.5 inches wide by 25.5–35 inches high and weighs 35 pounds.",
            "stated_as": "Length\n21.7 in\nWidth\n19.5 in\nHeight\n25.5 - 35 in\nWeight\n35 lbs",
            "source_type": "guide",
            "source_url": "https://www.cybex-online.com/en/us/p/10108310.html",
            "source_read_at": "2026-09-24T21:24:15.998Z"
          }
        },
        {
          "column": "Front clearance",
          "fact": {
            "field": "Fit in vehicles",
            "value": "The hands-on review says the Callisto family is relatively compact front-to-back for a rotating seat and often clears protruding, non-removable vehicle headrests, but its width makes adjacent seating or three-across arrangements difficult.",
            "stated_as": "The hands-on review says the Callisto family is relatively compact front-to-back for a rotating seat and often clears protruding, non-removable vehicle headrests, but its width makes adjacent seating or three-across arrangements difficult.",
            "source_type": "review",
            "source_url": "https://www.thecarmom.com/articles/cybex-callisto-g-360-review",
            "source_read_at": "2026-09-24T21:24:32.607Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/9564451504359",
      "name": "Graco SlimFit 3-in-1 Narrow All-in-One Convertible Car Seat",
      "url": "/products/ucp/albeebaby-com/9564451504359",
      "why": "Rotating cup holders rotate away to make the seat about 10% slimmer.",
      "cells": [
        {
          "column": "Dimensions",
          "fact": null
        },
        {
          "column": "Width",
          "fact": {
            "field": "width",
            "value": "Rotating cup holders rotate away to make the seat about 10% slimmer.",
            "stated_as": "The unique, rotating cup holders simply rotate away, making the seat 10% slimmer to save precious back seat space.",
            "source_type": "listing",
            "source_url": "https://dd1dfe-a3.myshopify.com/products.json",
            "source_read_at": "2026-10-09T19:03:04.916Z"
          }
        },
        {
          "column": "Front clearance",
          "fact": null
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/9925032968478",
      "name": "Britax Poplar Convertible Car Seat",
      "url": "/products/ucp/anbbaby-com/9925032968478",
      "why": "On a flat surface, the seat is about 28.5 inches long when reclined, but installed length varies with the vehicle seat and other factors.",
      "cells": [
        {
          "column": "Dimensions",
          "fact": {
            "field": "Dimensions",
            "value": "The retailer lists overall dimensions of 20.5 × 17 × 23.5 inches and a 17-inch design width.",
            "stated_as": "Dimensions:\n20.5\" L × 17\" W × 23.5\" H\nDesign Width:\n17\" (SpaceSaver™ Slim Design)",
            "source_type": "guide",
            "source_url": "https://anb-baby.myshopify.com/products/britax-poplar-convetible-car-seat",
            "source_read_at": "2026-09-24T12:41:36.289Z"
          }
        },
        {
          "column": "Width",
          "fact": {
            "field": "Dimensions",
            "value": "The retailer lists overall dimensions of 20.5 × 17 × 23.5 inches and a 17-inch design width.",
            "stated_as": "Dimensions:\n20.5\" L × 17\" W × 23.5\" H\nDesign Width:\n17\" (SpaceSaver™ Slim Design)",
            "source_type": "guide",
            "source_url": "https://anb-baby.myshopify.com/products/britax-poplar-convetible-car-seat",
            "source_read_at": "2026-09-24T12:41:36.289Z"
          }
        },
        {
          "column": "Front clearance",
          "fact": {
            "field": "Reclined length",
            "value": "On a flat surface, the seat is about 28.5 inches long when reclined, but installed length varies with the vehicle seat and other factors.",
            "stated_as": "The length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
            "source_type": "manual",
            "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
            "source_read_at": "2026-09-24T12:41:42.811Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/8833528234270",
      "name": "Britax Poplar",
      "url": "/products/ucp/anbbaby-com/8833528234270",
      "why": "It is approximately 28.5 inches (72.39 cm) long when reclined on a flat surface; vehicle geometry can change the installed measurement.",
      "cells": [
        {
          "column": "Dimensions",
          "fact": {
            "field": "Reclined length",
            "value": "It is approximately 28.5 inches (72.39 cm) long when reclined on a flat surface; vehicle geometry can change the installed measurement.",
            "stated_as": "The length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
            "source_read_at": "2026-09-24T12:39:09.434Z"
          }
        },
        {
          "column": "Width",
          "fact": {
            "field": "Width",
            "value": "The seat is 17 inches (43.18 cm) wide.",
            "stated_as": "At 17 in (43.18 cm) wide, these car seats are designed to fit 3-across* in most vehicles without compromising on safety and comfort.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
            "source_read_at": "2026-09-24T12:39:09.434Z"
          }
        },
        {
          "column": "Front clearance",
          "fact": null
        }
      ]
    },
    {
      "rank": 5,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/9925193335070",
      "name": "Britax Poplar S",
      "url": "/products/ucp/anbbaby-com/9925193335070",
      "why": "The black base runners must rest entirely flat on the vehicle seat, and up to 3 inches (7.5 cm) of the base may overhang the front in either orientation.",
      "cells": [
        {
          "column": "Dimensions",
          "fact": {
            "field": "Dimensions",
            "value": "It is 17 in (43.18 cm) wide and approximately 28.5 in (72.39 cm) long when reclined on a flat surface; installed length varies with the vehicle seat.",
            "stated_as": "At 17 in (43.18 cm) wide, these car seats are designed to fit 3-across* in most vehicles without compromising on safety and comfort. *Britax cannot guarantee 3-across installation fitment in all vehicles.\nThe length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
            "source_read_at": "2026-09-24T12:36:57.847Z"
          }
        },
        {
          "column": "Width",
          "fact": {
            "field": "Dimensions",
            "value": "It is 17 in (43.18 cm) wide and approximately 28.5 in (72.39 cm) long when reclined on a flat surface; installed length varies with the vehicle seat.",
            "stated_as": "At 17 in (43.18 cm) wide, these car seats are designed to fit 3-across* in most vehicles without compromising on safety and comfort. *Britax cannot guarantee 3-across installation fitment in all vehicles.\nThe length is approximately 28.5 in (72.39 cm) when reclined on a flat surface, though this may vary depending on the vehicle's seat angle and other factors.",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
            "source_read_at": "2026-09-24T12:36:57.847Z"
          }
        },
        {
          "column": "Front clearance",
          "fact": {
            "field": "Seat overhang",
            "value": "The black base runners must rest entirely flat on the vehicle seat, and up to 3 inches (7.5 cm) of the base may overhang the front in either orientation.",
            "stated_as": "The black positioning runners on the bottom of the car seat's base must rest entirely flat on your vehicle's seat, however the space beyond the runners’ outside edges is permitted to overhang the vehicle seat edge. You are also permitted to have up to 3 inches (7.5 cm) of the base extending beyond the front edge of your vehicle's seat in either rear-facing or forward-facing modes",
            "source_type": "guide",
            "source_url": "https://us.britax.com/support/faq/convertible-car-seats",
            "source_read_at": "2026-09-24T12:36:57.847Z"
          }
        }
      ]
    }
  ]
}