In 2026, Ryanair charges an excess baggage fee of £11 / €11 per kilo for any weight over your pre-booked allowance. For example, if you booked a 20kg checked bag but it weighs 22kg at the airport, you will be required to pay £22 / €22 at the "Baggage Drop" or "Ticket Desk" before your bag is accepted. The airline has a strict maximum weight limit of 32kg per single item of luggage for health and safety reasons; if your bag exceeds this, they will refuse to carry it regardless of the fee. To avoid these steep "per-kilo" charges, it is significantly cheaper to add extra weight or additional bags via the Ryanair app up to two hours before your flight. At the airport, agents use highly calibrated digital scales and rarely offer "grace" on even a single extra kilo, so using a portable luggage scale before you leave for the airport is highly recommended to ensure you stay within your 10kg or 20kg limit.