United Airlines (UA) Baggage Allowance Calculator
Check United Airlines baggage allowance: carry-on (56×35×22cm) and checked 23kg. Calculate excess baggage fees for United Airlines flights.
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- Updated May 2026
Carry-on: 56×35×22 cm.
Extra bag fee: $55 USD; overweight: $10 USD/kg above 23 kg.
Flying United Airlines (UA)? Pack to spec and skip the airport-side fees: carry-on is sized at 56×35×22 cm (no strict weight limit), checked baggage starts at 23 kg, and extras are where the bill grows. Slide the bag count and weight inputs to see your total United Airlines fee before you fly — and compare it against the cost of pre-booking an extra bag online, where the same bag often costs 40–60% less than at the counter.
United Airlines Carry-On Rules
Carry-on rules on United Airlines (UA): no formal weight cap, dimensions not exceeding 56×35×22 cm (L×W×H). Weight is not strictly limited on United Airlines, but the bag must fit the sizer at the gate — over-stuffed roller bags are commonly gate-checked.
A small personal item (purse, small backpack, laptop bag) is also permitted on United Airlines provided it fits under the seat in front of you.
Checking Bags on United Airlines
| Item | Allowance / limit | Online fee | Airport estimate |
|---|---|---|---|
| Carry-on | 56×35×22 cm (sizer only) | $0 | $0 (gate-check risk if oversized) |
| First checked bag | 23 kg · 158 cm linear | $45 | $68 |
| Extra checked bag | 158 cm linear | $55 | $83 |
| Overweight | Above 23 kg | $10 / kg | $14–16 / kg |
Airport estimates add the typical 40–60% counter premium over United Airlines's online rates; bags above 32 kg are refused at the check-in counter and must ship as cargo.
Swipe sideways to see the full table
Checked baggage on United Airlines (UA): each bag can weigh up to 23 kg, $45 USD per bag. The linear dimension limit (L+W+H) on United Airlines checked bags is 158 cm.
Each additional bag beyond the first runs $55 USD pre-booked online. Overweight charges on United Airlines start above 23 kg at $10 USD per kg; items between 23 and 33 kg typically incur a flat surcharge instead.
Overweight Luggage on United Airlines: The Real Costs
| Bag weight | Overweight surcharge | Second bag instead | Cheaper play |
|---|---|---|---|
| 25 kg | $20 | $55 | Pay overweight |
| 28 kg | $50 | $55 | Pay overweight |
| 32 kg | $90 | $55 | Split bags |
Overweight = $10/kg above 23 kg on United Airlines; second-bag figures are online rates (airport counters add 40–60%).
Swipe sideways to see the full table
United Airlines charges $55 USD per additional checked bag beyond the first, and $10 USD per kilogram over the 23 kg limit. Compare strategies before paying: a second 18 kg bag at $55 often beats $10/kg overweight on one heavy case — the calculator tests both configurations for United Airlines (UA).
The cheapest fixes are free on United Airlines too: distribute weight across bags, wear the heavy coat, pocket the chargers. Pre-booking United Airlines extra bags online locks the lowest rate.
Flying with Sports Gear on United Airlines
United Airlines treats sports equipment — skis, snowboards, golf clubs, surfboards, bicycles — as standard checked bags within the 23 kg weight limit, subject to the same per-bag fee. Instruments under 8 kg and within carry-on dimensions may travel in the United Airlines cabin; larger instruments need either a bought seat or checked handling — United Airlines recommends hard-shell cases and a declaration at check-in.
Strollers, car seats and mobility devices (wheelchairs, scooters) travel free on United Airlines with priority handling — gate-check a stroller and it returns at the aircraft door.
Calculation Formula
fee = max(0, bags-1) × extra_bag_fee + max(0, weight-checked_kg) × 10 USD/kg overweightHow to Use This Calculator
- Set the number of carry-on bags you plan to bring (0 to 3).
- Set the number of checked bags (0 to 5).
- Slide the per-bag weight slider to your expected weight.
- Read the total fee breakdown — pre-book online to lock in the cheapest rate.
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