Luggage Weight Allowance Calculator
Find out how much weight you can still add to your bag before hitting the airline's limit. Use this before packing to avoid costly overweight baggage fees at check-in.
About this calculator
Airlines enforce strict per-bag weight limits — typically 50 lbs (23 kg) for checked bags in economy class. Exceeding that limit triggers overweight fees that can range from $50 to over $200 per bag. The remaining allowance is calculated with a simple formula: Remaining Weight = weightLimit − currentWeight. For example, if your airline allows 50 lbs and your bag currently weighs 38 lbs, you have 12 lbs of headroom left. Knowing this number before you head to the airport lets you redistribute items between bags, ship packages ahead, or leave non-essentials behind. Always weigh your bag at home with a luggage scale for the most accurate reading.
How to use
1. Find your airline's weight limit — say 50 lbs for a checked bag. 2. Weigh your packed luggage at home — say it reads 43 lbs. 3. Enter 50 in the Weight Limit field and 43 in the Current Luggage Weight field. 4. The calculator computes: 50 − 43 = 7 lbs remaining. 5. You can safely add up to 7 more pounds without incurring overweight fees. Use this to decide whether to pack those extra shoes or redistribute weight to a carry-on.
Frequently asked questions
What is the standard checked baggage weight limit for most airlines?
Most major airlines set their economy-class checked baggage limit at 50 lbs (23 kg) per bag. Business and first-class passengers often receive a higher limit of 70 lbs (32 kg). Budget carriers like Spirit or Frontier may use lower limits, so always check your specific airline's policy before travel. International routes can also have different rules depending on the destination country.
How much does it cost if my luggage is overweight at the airport?
Overweight baggage fees vary widely by airline but are generally steep. Most U.S. carriers charge $100–$200 per overweight bag for bags between 51–70 lbs, and even more for bags over 71 lbs. International carriers may charge by the kilogram over the limit. Catching the problem at home and removing a few items is almost always cheaper than paying the fee at the counter.
How can I accurately weigh my luggage before going to the airport?
A handheld digital luggage scale is the most accurate and convenient tool — they cost around $10–$20 and clip onto your bag's handle. Alternatively, you can use a bathroom scale: weigh yourself alone, then weigh yourself holding the bag, and subtract the difference. Keep in mind that airport scales are calibrated and may read slightly differently from home scales, so build in a small buffer of 1–2 lbs below the limit.