MightyFit 65 › fit in › Honda Odyssey
Will the Cosco MightyFit 65 fit in a 2018–2024 Honda Odyssey?
Yes — the Cosco MightyFit 65 fits a 2018–2024 Honda Odyssey.
The MightyFit 65 is about 18" wide; the Odyssey's usable rear bench is about 55". It fits one rear position comfortably. Three even fit across the back (54" needed vs 55").
The MightyFit 65 is about 18" wide; the Odyssey's usable rear bench is about 55". It fits one rear position comfortably. Three even fit across the back (54" needed vs 55").
18"MightyFit 65 width
55"Odyssey rear bench
Yesthree across
★★★☆☆NHTSA Ease-of-Use
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What fits this Odyssey
- One seat, rear position: Yes. The MightyFit 65 installs in an outboard rear position of a 2018–2024 Honda Odyssey with room to spare.
- Three across: Yes — three need ~54" against a ~55" bench. Test-fit; three-across is decided by half-inches.
- Modes this seat covers: rear-facing → forward-facing.
- LATCH: lower anchors up to 55 lb; the Odyssey has 3 lower-anchor positions.
ℹ️ Informational only — built from NHTSA public car-seat ratings and published seat/vehicle dimensions. This is not a safety certification and not a substitute for the seat and vehicle manuals. Always confirm the fit and install yourself before every trip. The MightyFit 65's width (Cosco published spec (~18 in)) and the Odyssey's rear-bench width (Honda dimensions + owner measurements (approx); among the best for 3-across) are both approximate — confirm with a test-fit before buying.
Common questions
Will the Cosco MightyFit 65 fit in a 2018–2024 Honda Odyssey?
Yes — the Cosco MightyFit 65 (18" wide) fits a single rear seating position in a 2018–2024 Honda Odyssey. Three of them also fit across its roughly 55" rear bench.
Can you fit three MightyFit 65s across a Odyssey?
Yes — three MightyFit 65s need about 54" and the Odyssey's usable bench is about 55". It's close, so test-fit before buying.
Sources: seat ratings & modes — NHTSA (pulled 2026-06-17); dimensions — manufacturer specs and owner measurements. Informational only — built from NHTSA public car-seat ratings and published seat/vehicle dimensions. This is not a safety certification and not a substitute for the seat and vehicle manuals. Always confirm the fit and install yourself before every trip.